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Ozone
* All ozone is bad for people s health.
* Falls in east Cumberland County.
* Irritates the lungs and breathing passages, causing coughing and pain in the chest and throat.
* Most ozone is created by lightning and falling rain, for example
  - over the tropics and then is carried to higher latitudes by prevailing winds
  - found in the upper atmosphere
  - monitoring data focus largely on outdoor ozone concentrations
* Most ozones exist in atmospheres
  - upper atmospheres
  - form air pollutants
* Most ozones form major air pollutants
* Most ozones have beneficial properties
* Some Ozone Depleting Chemicals Continue to Increase in Atmosphere.
* Some ozones absorb energy
  - radiation
  - solar energy
* Some ozones cause damage
  - problems
  - respiratory problems
  - facilitate development
  - release into air.
  * is important to planet Earth. There portion of the stratosphere with a high concentration of ozone, called the ozone layer. The ozone layer soaks up or absorbs the dangerous ultraviolet radiation from the Sun, like a kind of sun screen. Without this ozone layer things would not have been able to live on the surface of our planet
* absorbs UV radiation from the sun, thereby protecting plants, animals and people
  - contaminants
  - much ultraviolet radiation and prevents it from reaching the Earth
  - u.v. radiation which can be harmful to people and vegetation
* absorbs ultraviolet radiation in our atmosphere
* accounts for most areas being out of attainment.
* activates both monocytes and lymphocytes.
* acts as a microflocculant aiding in the removal of minerals such as iron and manganese
  - protective layer high above the earth, but it can be harmful to breathe
  - shield for in the earth's surface
* adds no contaminants or by-products to water.
* adversely affects respiratory health
  - impacts human health and our welfare including national parks
* affects all living things - plants, animals and humans
  - breathing and pulmonary surfactant function in mice
  - healthy people as well
  - more than human health
* affects people differently, based on their susceptibility
  - in two ways
  - the intensity of the UV radiation on the Earth's surface
* also acts as an ionizer.
* also affects healthy exercising adults at relatively low concentrations
  - the environment, plants and animal life
  - appears to make the lungs more susceptible to bacterial infections
* also attacks the cell membranes of plants, leading to stress
  - lungs of mammals and birds
  - can damage plants and reduce crop yields
* also can damage trees and crops
* also causes harm to some crops
  - severe damage to commercial crops and forests
* also contributes to acid rain and the greenhouse effect
  - premature deaths from cardiovascular disease and other chronic illnesses
* also corrodes man-made materials such as textiles and rubber
  - some metals
* also damages many tree and plant species
  - plants, including agricultural crops, and degrades paint and rubber
  - trees and crops near urban areas
  - degrades rubber and plastic products
  - demonstrate the ability to modulate cytoxine production
  - destroys organic materials and herbicide residues
  - excels over chlorine in oxidation of organics
  - harms plant growth
* also helps in oil separation and sedimentation
  - purify the air, decreasing dust, smoke, and harmful gases
  - hurts the lungs of healthy people who exercise outdoors when ozone levels are high
  - impedes timber and crop growth
* also increases people's susceptibility to respiratory infections
  - the number of cases of bronchitis in children and senior citizens
  - inhibits plant growth and can cause widespread damage to crops and forests
  - interacts heavily with insects and pathogens
  - irritates the respiratory system in humans
  - is part of the mix of industrial pollution
* also occurs in very small amounts at ground level
  - in the troposphere
  - reacts with rubber compounds and soft plastics
  - reduces agricultural production and the growth rate of trees
  - travels over the ocean and over other large bodies of water
* alters the concentrations of nutrients in bean tissue.
* are chemical compounds
  - inorganic compounds
  - molecules
  - oxygen
* attacks the odors created by smoke particles
  - tissue of the throat and lungs and irritates the eyes
* automatically dissolves after fumigation.
* begins eating away the protective wax and before long reaches the tire polymer.
* blocks out a great deal of ultraviolet and higher energy rays from the sun.
* breaks down or oxidizes impurities in the air.
* burns the tissue of the lungs, much like sunburn.
* byproduct of many motors and is naturally present in the air.
* can act as an irritant, burning eyes and throats
  - affect plants, impacting forests and damaging food crops
* can aggravate asthma and inflame and damage cells that line the lungs
  - also affect materials such as paints and rubber
* can also aggravate asthma and speed up aging of lung tissue
  - asthma, and make people more sensitive to allergens
  - existing respiratory conditions such as asthma
  - be useful in the treatment of water
  - cause breathing disorders such as bronchitis
* can also cause damage in plants
  - to crops, painting, and plastic products such as tires
  - eye irritation, headaches, and chest discomfort
  - cut agricultural yields for crops such as soybeans, wheat, and cotton
  - damage forests and crops
  - enter the plant through the stomates and can affect photosynthesis via that route
  - harm vegetation
  - hurt plants and crops
  - increase susceptibility to respiratory infections
  - reduce the body's resistance to colds and pneumonia
  - suppress the body's immune system
  - weaken materials such as rubber and fabrics
* can also worsen asthma
  - bronchitis, heart disease, emphysema and asthma
* can be a lung irritant
  - respiratory irritant at levels often found in many cities during the summer months
  - an effective sanitizer
  - dangerous to humans
  - effective against chemical sources, bacteria, mold, odors, etc
  - either beneficial or harmful to people depending on where it is in the environment
* can be good or bad, depending on where it is found
  - on where it is located
  - upon where it is located
  - injurious to vegetation at high concentrations
  - become a respiratory irritant that forms when other pollutants mix
  - burn into human lung tissue, causing airways to become swollen or inflamed
* can cause an asthma attack, and it can make asthma attacks worse than usual
  - cellular damage to plants as well as animals
  - coughing, wheezing, chest tightness, dry throat, headaches, and nausea
  - deterioration of buildings and man-made materials
  - eye and lung irritation
  - headaches, sore throats and coughs
* can cause health effects, including irritation of the lungs, nose and throat
  - problems in high dosages
  - lung irritation in children, the elderly, and citizens with respiratory ailments
  - numerous health effects
  - permanent damage to lungs and irritates eyes and noses
* can cause permanent lung damage and reduce crop yields
* can cause shortness of breath, chest pain, throat irritation, coughing and wheezing
  - coughing, wheezing, and eye and nose irritation
* can damage foliage on many types of trees
  - the lungs, cause wheezing, chest pain, dry throat, headache or nausea
  - trees and plants and reduce visibility
  - degrade rubber parts
* can enter the plant through the stomates and affect photosynthesis
  - troposphere through natural and anthropogenic means
  - form the suspected carcinogen bromate in source water with high bromide concentrations
* can have adverse health effects
  - an adverse effect on the human body
  - detrimental effects on plants upon extended exposure at fairly low levels
* can impair human lung functions and inhibit plant growth
  - lung function and cause symptoms such as cough and discomfort on deep breathing
  - people's breathing and aggravate respiratory problems such as asthma
  - increase susceptibility of the lungs to infections, allergens, and other air pollutants
* can increase the reaction to allergies, for instance
  - susceptibility of the lungs to allergens and other air pollutants
  - inflame the lung s lining
  - initiate damage to the lungs as well as damage to trees, crops, and materials
* can irritate the eyes and the nasal passages and worsen existing respiratory problems
  - lungs and cause difficulty breathing
  - respiratory system, causing coughing, and irritation in the throat and chest
  - kill many types of germs
  - lead to lung disease, decreased lung function and trigger asthma attacks
* can make breathing difficult, especially for people with respiratory problems
  - eyes itch, burn and water
  - it more difficult to breathe deeply and vigorously
  - meander down from the stratosphere, where it acts as Earth's ultraviolet shield
  - neutralize odors and gases
* can oxidize materials at room temperature with much higher reactivity than pure oxygen
  - salt to hypochlorite at room temperature
  - pose serious health problems
* can reduce agricultural yields and damage crops
  - chlorine or bromine consumption to a minimum, saving money on maintenance
  - the size of plants and cause leaf spotting
  - significantly reduce levels of harsh chemicals such as chlorine and bromine
  - travel with the wind to other places and become a problem there too
  - trigger asthma attacks and aggravate bronchitis and emphysema
* causes breathing problems and can cause asthmatic episodes
  - eye irritation, impaired lung function, and damage to trees and crops
  - increased airways responsiveness and sensitivity to allergens
  - injury to leaf tissue on plants, which reduces photosynthesis activity
  - tens of thousands of emergency room visits by asthma patients each year
  - watery eyes and a burning sensation in the nose and throat
* caustic gas which is the prime component of smog
  - substance that is the prime ingredient in smog
* changes carbon monoxide to carbon dioxide, a harmless gas.
* chemical made of three oxygen atoms.
* chemically active triatomic allotrope of the element oxygen
  - unstable molecule composed of three oxygen atoms
* chief component of smog.
* colorless form of oxygen that damages respiratory tissues
  - gas found in the upper atmosphere of the Earth
* colorless gas that can be found throughout the earth's atmosphere
  - exists naturally in the atmosphere
  - variety of oxygen
* colorless gas with a noticeable odor
  - pungent odor, and, if inhaled, can damage or kill living cells
  - pungent, irritating odor
  - gas, which is composed of three oxygen atoms linked together
* common oxidizing agent found in photochemical smog.
* commonly creates a flush effect if given rapidly.
* complex form of oxygen.
* component of photochemical smog
* consists of oxygen atoms
  - three oxygen atoms joined together into a single molecule of ozone
* continues to be the most difficult pollutant to decrease
  - cause lung damage even when the symptoms have disappeared
* contributes to respiratory diseases such as asthma, bronchitis and emphysema.
* controls many pathogens and nematodes and requires no federal registration.
* cost-effective powerful oxidant.
* covalently bonded molecule.
* creates changes inlung function and has proven to develop chronic lung diseases.
* damages forests and reduces crop yields
  - human lung tissue, manufactured materials, and crops
  - sensitive lung tissue and reduces lung function
* damages the cells that line the air spaces in the lung
  - lungs, and destroys crops
* dangerous gas.
* decomposes the potassium iodide, setting free iodine, which turns the starch blue.
* degrades petrochemicals.
* depleting substances also contribute to varying extents to the greenhouse effect.
* destroys bacteria, viruses, mold, and mildew
  - molds and bacteria, while negative ions remove floating mold spores from the air
  - plants, as free radicals of oxygen atoms attack plant tissues
  - rubber like neoprene wetsuits
* destroys the microorganisms carried by dust
  - pollution in the environment
  - source of odor
* differs from atmospheric action only in degree of activity and potency
  - oxygen only in degree of activity and potency
* directly decomposes organic waste by oxidation.
* disinfects water through oxidation.
* does absorb some ultraviolet radiation, and excessive ultraviolet radiation can be harmful
  - exist in the atmosphere
  - permanent lung damage, especially among the young and the elderly
* drug and therefore is subject to all applicable regulations.
* effectively reduces true color.
* eliminates cloudy water.
* eliminates odors in air, such as smoke
  - oils and other contaminants in water
* eliminates spores, cysts, yeast, and fungus
  - fungus and smoke
* enhances tissue oxygenation.
* especially aggrevates chronic respiratory diseases such as asthma and bronchitis.
* exists at all levels of the atmosphere
  - both in the upper atmosphere and in the lower atmosphere
* exists in the upper atmosphere from the reaction between sunlight and molecular oxygen
  - zone layer as well as at the earth's surface
  - mainly at the stratopause
  - naturally in the lower atmosphere in minute quantities
* factor in many hospital admissions.
* fights viruses in a variety of ways.
* filters many UV rays from the sun.
* filters out harmful UV light, which damages biological molecules
  - much of the harmful ultra-violet radiation of the sun
* filters the sun's most dangerous ultraviolet rays from the earth
  - ultraviolet rays as they travel to the Earth's surface
* form of molecular oxygen that consists of three oxygen atoms linked together
* form of oxygen and is the principal component of modern smog
  - found naturally in the Earth's atmosphere
  - in which the molecule contains three atoms instead of two
* form of oxygen present in the atmosphere in very small quantities
* form of oxygen that absorbs damaging UV radiation
  - can be created by electrical currents
  - occurs naturally, consisting of three oxygen atoms
* form of oxygen with three atoms instead of the usual two
  - atoms, instead of the usual two atoms
* formed by an electrical charge is an environmentally friendly gas with numerous applications.
* forms a protective layer that shields the earth from damaging ultraviolet rays
  - the most abundant oxidant in photochemical smog
* fragile chemical, but it's just the right size and shape to absorb the UV from the sun.
* frees up the combined chlorine leaving the chlorine free to provide a residual.
* gas and is highly corrosive
  - the main component of smog
  - created by nitrogen dioxide or nitric oxide when exposed to sunlight
  - effecting the health of our population and the corrosion of our property
  - found throughout the atmosphere
  - in the upper atmosphere that filters out the most harmful ultraviolet light
  - made up of three oxygen atoms
  - of O molecules
  - similar to oxygen except it kills germs
  - that consists of three atoms of oxygen
* gas that is composed of three atoms of oxygen
  - formed in the atmosphere when three atoms of oxygen combine
  - helpful and takes in harmful rays from the sun
  - present in the ozone layer in the stratosphere of the Earth
  - pumped into the water with special equipment
* gas that occurs both in the Earth s upper atmosphere and at ground level
  - in nature and is one of the most powerful oxidants known to science
  - used for disinfecting water, laundry, foods, air, and surfaces
* gas which plays different roles at different levels in the atmosphere
  - powerful oxidant and is used at a few of our water treatment works
  - with a pungent odor and main component of smog
* generating reactions in the stratosphere is the main heat source.
* gets into plants' stomata, penetrates cell walls, and makes membranes brittle.
* good therapy to include in a program for controlling cancer.
* greenhouse gas as well as a local air contaminant
* harms all plant and animal life.
* has a characteristic smell, often felt during thunderstorms
  - clean, fresh scent noticed after a rainstorm
  - complex effect on climate change
  - distinct 'electrical' odor
  - sharp sweet odor, yet oxygen is odorless
  - an active residual measured in minutes
* has no effect on dust and other particulates, however
  - particulate solid particles
  - powerful oxidation potential and is used to disinfect, sterilize and oxygenate water
* has the capability of destroying bacterial slime in a matter of a few days
  - greatest impact on life
* has the same chemical structure whether it is found in the stratosphere or the troposphere
  - effect as chlorine in destroying organic and bacterial hazards
  - oxidizing effect but oxidizes many more substances at a faster rate
  - very different effects in the environment depending on where it occurs
* heats the upper atmosphere by absorbing ultraviolet from sunlight.
* helps prevent the calcium in spa water from chelating, and thus conditions the water.
* highly active form of oxygen and can cause great irritation to all mucous membranes
  - corrosive gas and is poisonous to most organisms
* highly efficient absorber of UV radiation
  - purification agent or oxidizer
* highly reactive chemical which irritates the respiratory system
  - gas that form of oxygen
* highly reactive gas that is regulated in the outside air as a lung irritant
  - the main component of summer smog
  - molecule that contains three oxygen atoms
  - oxidizing agent that breaks-down organic materials
* highly reactive, complex form of oxygen
  - poisonous form of oxygen
* human made pollutant in the lower atmosphere.
* impacts Ozone is one of the principal ingredients of smog
  - on foliage dynamics of loblolly pine
* increases oxygen levels.
* increases the flexibility and elasticity of red blood cells
  - metabolism without the expenditure of vital energy
* infiltrates the human body directly via the skin and the higher bronchial tubes.
* irritates and damages the lungs
  - living tissue in the lungs, eyes and nose
  - noses, throats and eyes
  - the eyes and the mucous membranes of the respiratory tract
* irritates the eyes, damages the lungs, and aggravates respiratory problems
  - impairs the lungs, and aggravates respiratory problems
  - lungs and can make breathing difficult
  - mucous lining of the throat and lungs resulting in coughing and even choking
  - mucus membranes of the respiratory system, eyes and other tissues
* is North Carolina's most widespread air quality problem
  - activated oxygen
  - active oxygen, one of nature's very special elements
* is actually an excellent treatment for sclerosis of all kinds
  - three oxygen atoms bonded together
  - affected because pollutants such as CFCs destroy it far faster at low temperatures
* is also a concern
  - major part of the hazy smog that can hang over the region on hot, sunny summer days
  - powerful greenhouse gas, which contributes to climate change
  - an ideal gas to combat germs and bacteria
* is also harmful to growing plants resulting in agricultural losses
  - plants and to various materials
* is also highly concentrated at the Earth's surface in and around cities
  - the most difficult air pollutant to control
* is also toxic to some crops, vegetation and trees
  - vegetation at concentrations which commonly occur in rural parts of Canada
  - unstable and reacts with other gases changing their molecular structure
  - very expensive to operate and maintain
  - widely used in treatment of water in aquariums and fish ponds
  - always present in the Earth s atmosphere
* is an air pollutant that can cause health problems after high levels of exposure
  - quality problem in the summer months when temperature and sunlight are the greatest
  - antioxidant
  - atmospheric compound, found both at ground level and in the stratosphere
* is an effective and clean method of disinfection, but very expensive
  - antiviral therapy
  - example of a secondary pollutant
* is an excellent deodorizer and air purifier and has antibacterial properties
  - oxidizing agent and bactericide
  - extremely potent oxidant
  - important component of smog
  - invisible gas composed of three atoms of oxygen
  - invisible, irritating gas consisting of three oxygen atoms
  - irritant that can cause coughs, chest discomfort, and irritation of the nose and throat
* is an irritant to the lungs, and children and the elderly are especially susceptible
  - respiratory system and the major component of smog
  - irritating, pale blue gas that is explosive and toxic, even at low concentrations
  - odorless, colorless gas that irritates the lungs and interferes with breathing
  - oxidizing agent that can cause respiratory distress after prolonged exposure
* is an unstable chemical
  - form of oxygen actually created by ultraviolet light
  - molecule made up of three oxygen atoms
  - another chemical oxidant
  - applied to raw water before coagulation
  - approximately ten times more soluble in water than oxygen
  - as seasonal as the leaves on the trees
* is associated with respiratory problems, particularly in sensitive individuals
  - smog or haze conditions
  - attracted to break organic double bonds
  - beneficial to life on earth when it remains at high altitudes
  - both good and bad in the environment
  - brought down from the stratosphere by vertical winds produced during electrical storms
  - caused by chemicals released from cars, industries and household products
  - chemically very reactive
  - classified as a toxic gas if inhaled in large quantities
  - clearly superior to traditional chemical treatment
  - collected with a cryogenic system
  - colourless and has a very harsh odour
  - composed of three oxygen atoms, which is one more atom than needed for breathable oxygen
* is comprised of three atoms of oxygen - one of nature's basic elements
  - oxygen molecules which acts as an oxidizer and bacterial disinfectant
  - concentrated in a part of the atmosphere called the stratosphere
  - considered an allotropic form of elemental oxygen
  - convenient in pools and spas
* is created by electrically charging oxygen
  - hot, sunny weather
  - human and natural sources
  - the action of ultraviolet light or a strong electrical field on oxygen atoms
  - waterfalls and oceans surf
* is created from oxygen by ultraviolet radiation bombardment
  - the charged air, which helps kill bacteria and odors
  - in nature by the combination of oxygen in air and the ultraviolet rays of the sun
  - onsite in two ozone generators using electricity and high-purity oxygen gas
  - when chemicals emitted from industry and vehicles mix in the presence of sunlight
* is created when nitrogen oxide mixes in the atmosphere with volatile organic compounds
  - oxides mix with volatile organic compounds in sunlight
  - oxygen is hit with ultraviolet light
  - sunlight and heat cause chemical reactions between VOCs and nitrogen oxides
  - the weather is extremely hot and sunny, with low or non-existent winds
  - volatile organic compounds and nitrogen oxides meet sunlight
  - created, among other ways, by gas-burning automobiles
  - dangerous to humans and plants even at very low concentrations
  - definitely a dangerous pollutant
  - depleted when the natural balance is tampered with by humans
* is destroyed in the Antarctic spring by chlorine formed during the sunless winter
  - naturally by reaction with UV radiation, and by reactions with atomic oxygen
  - discussed on two different levels - stratospheric ozone and ground level ozone
* is effective against all types of fungi
  - in breaking down most of the complex organic compounds in the system
  - energy intensive, since the ozone is produced on site
  - environmentally safe
  - especially hazardous to young children and elderly citizens
  - everywhere in our atmosphere - but in different amounts
* is extremely harmful to plants and can interfere with photosynthesis
  - reactive chemically and is very poisonous
  - unstable, and the molecule is rapidly converted back to oxygen
  - valuable since it absorbs a range of ultraviolet energy
  - formed by the action of ultraviolet radiation on the upper stratosphere
* is formed by the reaction in sunlight of nitrogen oxides and volatile organic compounds
  - of an oxygen atom with an oxygen molecule
* is formed in our atmosphere naturally by the effect of lightning on oxygen
  - the atmosphere and is extremely reactive and thus has a short lifetime
  - when NOx reacts with hydrocarbons in the air on hot, sunny days with little wind
* is formed when air is exposed to ultraviolet radiation, as happens in the welding arc
  - pollutants combine in the heat of the summer sun
  - different types of air pollution mix together in sunlight on hot days
  - hydrocarbons and nitrogen oxide are mixed in the air
  - nitrogen oxides and certain hydrocarbons combine in the presence of sunlight
  - pollution from cars, trucks, industry and other sources combines in sunlight
  - three atoms of oxygen are bound together, instead of the normal two
  - found in nature in all the best places
* is generated electrically and therefore adds no chemicals into the treated water
  - on site and is introduced into the water or air automatically
  - on-site, thus eliminating transportation hazards
  - through lightning during a storm
  - using UV light, electrolysis, or the cornea-discharge process
* is good for wound healing
  - in the stratosphere, but bad in the troposphere
  - harmful in the lower atmosphere
* is harmful to breathe when too much is in the air
  - human health and can cause lung irritation even to healthy adults
  - humans and crops
  - many plants
  - hazardous as it can cause lung damage when it is breathed in
  - heavy oxygen, which is an oxidizer like chlorine
* is highly reactive , so it interacts with most contaminates and allergens it encounters
  - and highly undesirable to breathe, so ozone in the troposphere is bad
  - indeed present in smog, because certain processes that create pollution also produce ozone
  - ineffective for severe immune disorders
  - injected into a venturi through which water is flowing
* is injected into the air of the confinement where it permeates every area of the building
  - incoming water line
  - skimmers to promote flocculation and control oxidizable material
  - involved in at least two other air quality issues
  - itself used up during the oxidation process
* is known to be an irritant for asthmatics and people with bronchitis
  - extremely chemically active and toxic substance in humans
* is known to cause leaf damage and growth loss to trees and other vegetation
  - reductions in photosynthesis in many terrestrial plant species
  - largely responsible for the discomfort associated with photochemical smog
* is less corrosive than chlorine in water
  - likely to form when temperatures drop in the evening
  - lethal to almost all viruses, bacteria, fungus and cancer cells
* is linked to asthma, crop damage and other environmental problems
  - premature mortality and respiratory hospital admissions
  - located in the troposphere and the stratosphere
* is made from pure oxygen mixed with electrical UV energy
* is made up of oxygen atoms
  - mainly a daytime problem when temperatures are high, sunshine is strong and winds are weak
  - many times more powerful than chlorine
* is measured in Dobson Units
  - parts per million
  - mix of gasses in the atmosphere
  - mixed with air and is introduced into a contact chamber
* is more effective at removing strong odors than negative ions
  - than chlorine at inactivating the parasites cryptosporidium and giardia
  - potent oxidizing agent than the diatomic form
* is most commonly present in electric are welding and in the of aluminum and stainless steel
  - effective at reducing true color
* is much faster and more powerful than chlorine
  - less common than normal oxygen
  - more active chemically than ordinary oxygen and better oxidizing agent
  - nature s powerful purifier, and one of the most beneficial substances on the planet
  - nature's air freshener
* is nature's deodorizer and sterilizer, and now, it can be reproduced commercially
  - which can now be reproduced commercially
  - natural purifier
  - own purifier, and is created during thunderstorms by lightning
  - natures way of cleaning pollution from our atmosphere
  - no different
  - normally in concentrations of a few ppm in the atmosphere
  - of the most concern during the summer
  - one component of photochemical smog
* is one of -the most energetic and useful agents known to science
  - a new therapeutic agents being used in dermatology
* is one of nature's most effective purifiers
  - strongest oxidizers
  - several key air pollutants of concern to human health
  - six major air pollutants for which there national air quality standard
* is one of the forms in which the oxygene element exists in the atmosphere
  - greenhouse gases
* is one of the most effective disinfecting methods for maintaining superior water quality
* is one of the most powerful disinfectants known
  - natural sanitizers and deodorizers known to science
  - products the sun makes from the exhaust gases
  - purest and most powerful oxidants and germicides known
  - such secondary pollutant
  - only a problem during the summer
  - oxidative medicine designed to trigger oxidation
  - oxygen that has been subject to high voltage at very low amperage
  - pH neutral
* is particularly dangerous because it can trigger asthma attacks
  - for children, senior citizens and people with chronic lung disease
  - effective when used in conjunction with other water treatment processes
  - troublesome on hot sunny days
* is present in smog because certain processes that create pollution also produce ozone
  - throughout nature
  - pretty much everywhere and it VERY potent oxidizer
* is primarily a problem during the summer months, when heat and sunlight are more intense
  - summer air pollution problem
* is probably the most damaging regional-scale air pollutant
  - important, plant-toxic air pollutant in the United States
* is produced and destroyed naturally
  - as a by-product of burning fossil fuels in automobiles and industrial plants
* is produced by lightning and solar irradiation of oxygen molecules
  - lightning, which is why the air smells so fresh and clean after a thunderstorm
  - passing air through a high voltage electrical discharge, or corona
* is produced by the reaction between VOCs and nitrogen oxides
  - sparking from electric motors, so it very common problem
  - commercially by electric discharges in a machine
  - constantly in the upper atmosphere as long as the sun is shining
  - from medical grade oxygen using a machine called an ozone generator
  - in nature when the ultraviolet rays of the sun strikes oxygen molecules
* is produced naturally by the sun's ultraviolet light
  - through photochemical and electric discharge reactions
  - when sunlight shines on air
  - only when the printer is printing
* is produced when solar radiation divides an oxygen molecule into two oxygen atoms
  - sunlight hits pollution from car exhaust
  - the emissions of cars and trucks combine with other chemicals in the air
  - produced, in part, as a result of the sun's action on automobile exhaust
  - recognized as one of the strongest and most harmful pollutants known to humans
  - removed by contact with filters and chemicals in the gas regeneration system
  - reported to be an immunostimulant in low doses
  - second only to fluorine as the most powerful oxidizer or oxidant in the world
  - secondary only to fluorine as the most powerful oxidant
  - supplied to the troposphere by transport from the stratosphere
  - technically a greenhouse gas because it has an effect on global temperature
* is the air pollutant with the greatest effect on crop production
  - alternative water purifier to traditional chemicals such as chlorine and bromine
  - chief component of urban smog
  - fasted and most powerful oxidizer that can be safely used
  - fresh smell outdoors after a thunder storm
* is the main component of smog and is created when organic emissions are exposed to sunlight
  - and is linked to respiratory problems
* is the main component of smog, and is blamed for a multitude of serious human health problems
  - and is strongly damaging to coastal sage
  - contributor to urban smog
  - gas that makes up smog
* is the main ingredient in photochemical smog
  - smog, and a respiratory irritant
  - the stew of chemicals known as smog
* is the major agent in the formation of smog
* is the most effective disinfectant against cryposporidium
  - harmful common air pollutant to humans and vegetation
  - injurious pollutant to plant life
* is the most powerful known disinfectant for drinking water treatment
  - oxidizer safely used
* is the most powerful oxidizer that can be safely used
  - can be used safely in pools and spas
  - can be used safely to purify water
  - useful oxidant known, second only to fluorine in strength
  - wide-spread air pollutant in our country and is the main ingredient in smog
  - widespread air pollution problem in the country and the metropolitan area
  - name of a new, highly addictive street drug that is often fatal for users
* is the primary atmospheric pollutant causing injury to vegetation in California
  - ingredient in urban smog
* is the primary ingredient of smog in our cities and other areas of the country
  - summertime smog
* is the prime component of smog , the typical air pollution of urban areas
  - product of extremely complicated chemistry
  - same whether it is high altitude or ground-level
* is the strongest and most convenient disinfectant of all
  - disinfectant process known and used in the water industry
  - oxidant of the common disinfecting agents
* is three oxygen atoms bonded together
  - parts oxygen, it leaves no residual or byproducts in the water
* is toxic at high concentrations because it reacts strongly with other molecules
  - to living organisms and is considered a major air pollutant
  - triatomic oxygen that is concentrated mainly in the upper portions of the stratosphere
  - unhealthy to breathe, even at low levels
* is used as a disinfectant because is leaves no chlorine aftertaste
  - for stored food, animal by products, and sewage
* is used as an alternative to chlorine for disinfecting drinking water and wastewater
  - chlorine or chlorine dioxide in the bleaching of wood pulp
  - oxidant to remove harmful bacteria and bad odors from food and water
  - the primary disinfectant
  - commercially in water purification processes and as a bleaching agent
  - especially in disinfection and deodorization and in oxidation and bleaching
* is used for disinfecting, deodorizing and neutralizing many harmful substances
  - odor removal because of it's oxidizing capability
  - purifying water but it is also a major component of smog
* is used in medicine as well as in other spheres
  - the sample chamber to create a chemiluminescent reaction that produces light
  - thousands of residential and commercial pools and spas all over the world
  - primarily in odor reduction after fires or smoke damage
* is used to burn off additional organic compounds in the water
  - clean waste water and toxic waste
  - reinforce bones
  - useless for viral infections
* is very gentle to skin and eyes
  - hazardous to our health
  - unstable and hazardous to prepare
* is very unstable and reacts readily with carbon compounds
  - to form the more stable molecules of oxygen
  - virucidal, germicidal, bactericidal, and fungicidal
  - vital to life on earth because it blocks harmful ultra-violet radiation from the sun
  - voodoo treatment for cancer
  - vulnerable, though, to CFCs and halons being released into the atmosphere
  - what a thunderstorm produces
* is, of course, dangerous to pets and all living things.
* keeps water clean and sparkling clear
* key atmospheric chemical and protective ultraviolet shield.
* key component of smog, and a respiratory irritant
* key ingredient in smog
* kills all bateria and viruses
  - bacteria, viruses and protozoa immediately on contact, much faster than chlorine
  - microorganisms by rupturing their cell walls
  - most bacteria at low concentrations
  - virtually all known forms of viruses in water and air
* known respiratory irritant, and it also negatively impacts crop productivity.
* leaves no by-products except pure oxygen.
* leaves no chemical residue on food surfaces
  - taste or smell
  - residue, it's only by-product is pure oxygen
  - unpleasant chemical taste or smell
* lowers resistance to colds and pneumonia and causes irritation to the nose, throat and lungs.
* lung irritant at ground level and the chief ingredient in smog.
* major cause of deterioration of elastomers.
* major component of photochemical smog
  - smog and can cause eye, lung and throat irritation
  - contributor to poor air quality in urban areas
  - element of urban smog
  - pollutant in smog
  - urban air pollutant that has serious human health consequence
* makes people more sensitive to allergens
  - the anti-oxidant enzyme system more efficient
* means ground-level ozone, a harmful pollutant.
* minor but important constituent of the earth's atmosphere.
* molecule composed of three atoms of oxygen
  - containing three oxygen atoms
* molecule in the Earth's atmosphere
  - which three oxygen atoms are joined together
* molecule made of three oxygen atoms linked together
  - of pure oxygen, but in a form that differs from that usually found in nature
* molecule that consists of three oxygen atoms bonded together
  - protects Earth from the harmful effects of the Sun's ultraviolet light
  - serves both good and bad functions
* mucous membrane irritant and causes irritation of the nose, throat, eyes and lungs.
* natural alternative to purify water
  - component of our atmosphere
  - disinfectant that kills bacteria, mold, dust mites, yeast and fungi
  - gas that is found in two different layers of the atmosphere
  - gas, which is produced when sunlight strikes the atmosphere
  - purifier for any spa
* naturally occuring gas found on the earth's atmosphere.
* naturally occurring gas that is created by the breakdown of oxygen molecules
  - found in two layers of the atmosphere
  - molecule containing three atoms of oxygen
* neutralizes bological contaminants.
* noxious form of oxygen.
* occurs around crashing surf, white water rapids, and lightning storms
  - most frequently in the summer
* occurs naturally and is present in the ozone layer of the air
* occurs naturally in the stratosphere and is produced and destroyed at a constant rate
  - provides a protective layer high above the earth
* occurs naturally in the upper atmosphere and shields the Earth from ultraviolet radiation
  - through the action of the sun's rays on oxygen in the atmosphere
* offer distinct advantages over other antiviral agents.
* offers an alternative by destroying odors and their causes naturally.
* opens up arteries.
* oxidizes arterial plaque
  - everything it contacts
  - iron, sulfur, manganese and hydrogen sulfate
  - the algae spores
* particular risk for people with asthma and other respiratory ailments.
* particularly dangerous pollutant that adversely impacts our health.
* plays a central role in the atmospheric chemistry
  - significant role in the troposphere by oxidizing many organic compounds
  - vital role in protecting the Earth from the Sun's harmful ultra-violet rays
  - an important role in photochemical smog and in the production of acid rain
  - the major role in regulating temperature
* poisonous form of oxygen that can damage both plant and animal tissue.
* poisonous gas and an irritant at the earth's surface, capable of damaging lungs and eyes
  - that causes damage to agricultural crops, trees and people
* possesses fungicidal effects.
* potent germicidal agent.
* powerful and irritating pollutant that is colourless and invisible to the naked eye
  - anti-oxidant and can be used to disinfect, sterilize and oxygenate water
  - bacteria destroyer, virus deactivator and odor controller
* powerful oxidant and excellent disinfectant
  - that, when inhaled, reacts with the body s internal tissues
  - oxidant, capable of making rubber and synthetic materials brittle
  - oxidizer, which aggressively attacks organics
* powerful oxidizing agent and very effective at killing bacteria
  - that damages lung tissue
  - agent, and a toxic gas
* powerful, natural, disinfecting agent that destroys bacteria, viruses and pyrogens.
* precursor to smog, which causes respiratory disorders and other health problems.
* preferentially destroys blue dyes first.
* prevents most of the sun's harmful ultraviolet radiation from reaching Earth's surface.
* primary pollutant.
* produced from air has really very different odor then ozone produced from oxygen.
* produces no tastes or odors in the water.
* protects Earth's inhabitants by absorbing dangerous ultraviolet radiation from the sun
  - all life on earth by absorbing harmful ultra-violet radiation
* protects life from the harmful effects of ultraviolet radiation
  - on earth by absorbing most incoming solar ultraviolet radiation
  - the Earth from harmful ultraviolet radiation
* pungent, colorless, toxic gas that major component of smog.
* quickly dissipates from the water, so there is no harmful health effects from it.
* rare gas on Earth found mostly in the stratosphere.
* reactive form of oxygen
  - molecule of oxygen atoms
* reacts directly with organic double bonds.
* reacts with and degrades chlorophyll, and thus lowers the plant's productivity
  - lung tissue causing swelling and chest pain
  - most airborne particles and the particles are attracted to floor and walls
* reacts with the rubber polymer to weaken it's structure
  - sources of unpleasant or hazardous indoor odors and chemicals
* readily oxidizes the troublesome trio - iron, manganese, and hydrogen sulfide.
* reagent in many organic reactions in the laboratory and in industry.
* reduces air visibility and causes health problems
  - both rinse-up time and the time required to switch flavors or products
  - lung function and aggravates existing respiratory problems such as asthma
  - organic material into carbon dioxide, water vapor and oxygen
* reduces overall chemical costs, discharge assessments and downtime
  - and plant downtime
  - photosynthetic efficiency by competing with carbon dioxide
  - the ability of trees and plants to fight disease
  - ultraviolet radiation, the kind that burns skin
* relatively short-lived molecule
  - simple molecule, consisting of three oxygen atoms bound together
* relatively unstable molecule found in Earth's atmosphere
* remains one of the three most important air pollutants worldwide.
* respiratory irritant found in smog
* rids water and air of unhealthy microorganisms.
* ruptures bacteria's cellular membranes, so reactivation of the cell is impossible.
* safe gas.
* sears the lining of the lungs, just as too much sun can burn the skin.
* secondary ambient air pollutant
  - gas produced from reactions involving gaseous oxides of nitrogen
  - pollutant, formed in the air as a result of chemical reactions
* seeks out a substance that it can oxidize so that the original state is quickly realised.
* selectively absorbs ultraviolet radiation
  - inhibits growth of human cancer cells
* serves as a filter to screen out and reduce the amount of UV light.
* severe irritant that can cause choking, coughing and stinging eyes
  - causes choking, coughing and stinging eyes associated with smog
  - damages lung tissue and aggravates respiratory diseases
  - irritant, responsible for choking coughing and stinging eyes associated with smog
* shields life on Earth from the harmful effects of the Sun's ultraviolet radiation
  - earth from the sun's UV radiation
* shields the earth from ultraviolet light which burns plants and causes skin cancer
  - surface of Earth from damaging ultraviolet rays
* significant contributor to smog.
* simple triatomic, reactive molecule formed from three oxygen atoms.
* smells just like an indoor swimming pool with way too much chlorine.
* sort of super oxygen.
* specific photochemical oxidant that can be irritative to the lungs and eyes.
* stimulates the production of white blood cells.
* strong germicide needing only a few micrograms per liter for measurable action.
* strong irritant of the mucus membranes, especially the respiratory tract
  - to the eyes and respiratory tract
  - oxidizer that helps control algae and bacteria
  - oxidizing agent used as a disinfectant in water and sometimes to eliminate odors
* substantially reduces the amount of wash chemicals required and makes some chemicals obsolete.
* summer time pollutant that causes lung irritation and difficulty in breathing.
* tends to be lower in urban areas than rural.
* then kills bacteria and viruses and oxidizes the remaining organic material.
* three atoms molecule of oxygen.
* thus plays a key role in the temperature structure of the Earth' s atmosphere.
* tightens arteries.
* toxic free radical.
* toxic gas and a component of smog with no known beneficial health effects
  - very powerful oxidizing agent
  - which is formed by a reaction between air pollutants and sunlight
  - with vastly different chemical and toxicological properties from oxygen
* triatomic form of oxygen.
* triggers asthma because it is extremely irritating to the lungs and airways.
* true sterilant.
* turns back into oxygen on contact with indoor surfaces such as walls or furniture.
* type of gas in the atmosphere that shields the Earth from the Sun's radiation.
* ultimately enhances the performance of chlorine and bromine.
* unique molecule containing three oxygen atoms that form an isosceles open triangle.
* unstable gas which is very active chemically.
* usually attacks nearly mature leaves first, progressing to younger and older leaves.
* very active form of oxygen that causes a variety of symptoms
  - effective disinfectant and air purifier
  - good sterilant but is subject to environmental and worker exposure regulations
  - powerful disinfectant and it works in much less time than required with chlorine
* very reactive compound
  - gas that is hard on lung tissue
  - gas, and even at low concentrations it is irritating and toxic
  - special kind of oxygen molecule
  - strong oxidizing agent
  - yin gas made up of three atoms of oxygen
* vital filter of the sunlight.
* weakens the immune system and facilitates the development of lung infections.
* works best in cold water
  - on very clean water sources
  - by different mechanisms of immune modulating effects
  - to decompose trihalomethanes and substances that cause musty odors
+ Air pollution, Types of air pollution
  * Secondary pollutants are pollutants that are made from chemical reactions when pollutants mix with other primary pollutants or natural substances like water vapor. Many secondary pollutants are made when a primary pollutant reacts with sunlight. Ozone and smog are secondary pollutants. Ozone is a gas that is helpful and takes in harmful rays from the sun. When it is near the ground, though, ozone is a dangerous pollutant that influences the health of all organisms.
+ Germicidal lamp: Lamps
  * A 'Germicidal lamp' is a lamp that produces  a special type of ultraviolet light. This light can ionise oxygen and produce ozone. Ozone can kill many types of germs.
+ Ozone depletion
  * Ozone is a gas that is present in the ozone layer in the stratosphere of the Earth. There, it will absorb almost all ultraviolet light which is harmful to many organisms.