### complicated air pollutant:

Cigarette smoke
* Most cigarette smoke affects quality
  - skin
  - sperm quality
* Most cigarette smoke contains carcinogen
  - chemicals
  - know carcinogen
  - numerous carcinogen
* Most cigarette smoke produces carbon monoxide
  - reduces health
* Some cigarette smoke causes cancer
  - death
  - premature death
  - induces atherosclerosis
* aggravates experimental colitis in rats.
* can accelerate the decline in lung function related to asthma.
* can also be a significant trigger of an allergic headache
  - cause asthma attacks
  - be lethal
  - cause air passages to close up and make breathing more difficult
  - start an asthma attack as well as damage the airways
* causes an increased expression of a receptor on the surface of lung cells
  - chronic inflammation in the lungs, leading to chronic bronchitis
* complicated air pollutant.
* consists of a mixture containing thousands of different organic chemicals.
* contains acetone, which is the prime ingredient of fingernail polish remover.
* contains carbon monoxide, formaldehyde and thousands of other chemicals
  - chemicals which can damage the endothelial lining
  - cyanide, a deadly poison
  - formaldehyde, a chemical used a preserve dead frogs for biology class
  - high levels of free radicals- compounds implicated in disease and aging
* contains hundreds of chemicals that are known to cause cancer
  - which can damage lung tissue
* contains many carcinogens
  - powerful mutagens
  - methanol, a wood alcohol
  - mutagenic heterocyclic amines, and so does prepared food
  - nicotine, tar and other poisons
  - one chemical
  - several thousand chemicals
  - specific cancer-causing chemicals
  - thousands of substances
  - tiny particles, which can be collected on a filter pad in a laboratory
* contaminates everything it touches, even people.
* decreases the blood supply of oxygen and helps build up cholesterol in the arteries.
* good example, where a film of the smoke can settle everywhere.
* has cadmium in it and so smokers breathe in cadmium
  - chemicals that can make normal cells change into cancer cells
* increases a child s chance of middle ear disease
  - the risk of stroke
* interferes with the eye's antioxidant defense mechanisms.
* introduces formaldehyde into an environment.
* is akin to any strange odors, like pets.
* is also a source of benzene
  - always a major problem for asthmatics
  - an irritant that can further aggravate allergy symptoms
  - biologically active
* is high in oxidants and depletes the body of vitamin C and other antioxidants
  - the heavy metal cadmium
* is known to contain molecules known as free radicals
  - degrade hyaluronic acid
  - located in bars
  - one of the most common dangers for singers
* is the most common allergen
  - cause of COPD cases in the United States
* lowers testosterone levels.
* major trigger of asthma symptoms.
* makes all allergic conditions worse.
* paralyzes the cilia it contacts in the sinuses and lungs for twenty-minutes.
* pollutes the air in enclosed places, which also affects the nonsmokers present.
* prime suspect, but tobacco use is declining in the United States.
* puts added strain on the heart because it causes vessels to clamp down or constrict.
* reaches the brain faster than drugs that enter the body intravenously.
* source of exposure to benzene.

### components:

Stereo speaker
* are components
  - speakers
* help the process by separating the voice by earphone.