# Chemical waste

Part of a series on :
Pollution :
Chemical waste bin :
Air
Acid rain
Air quality index
Atmospheric dispersion modeling
Chlorofluorocarbon
Combustion
Exhaust gas
Haze
Global dimming
Global distillation
Indoor air quality
Non-exhaust emissions
Ozone depletion
Particulates
Persistent organic pollutant
Smog
Soot
Volatile organic compound :
Biological
Biological hazard
Genetic
Illegal logging
Introduced species
Invasive species :
Digital
Information :
Electromagnetic
Light
Ecological
Overillumination
Radio spectrum :
Natural
Ozone
Radium and radon in the environment
Volcanic ash
Wildfire :
Noise
Transportation
Health effects from noise
Marine mammals and sonar
Noise barrier
Noise control
Soundproofing :
Radiation
Actinides
Bioremediation
Depleted uranium
Nuclear fission
Nuclear fallout
Plutonium
Poisoning
Radioactivity
Uranium
Radioactive waste :
Soil
Agricultural
Land degradation
Bioremediation
Defecation
Electrical resistance heating
Illegal mining
Soil guideline values
Phytoremediation :
Solid waste
Advertising mail
Biodegradable waste
Brown waste
Electronic waste
Foam food container
Food waste
Green waste
Hazardous waste
Industrial waste
Litter
Mining
Municipal solid waste
Nanomaterials
Plastic
Packaging waste
Post-consumer waste
Waste management :
Space
Space debris :
Thermal
Urban heat island :
Visual
Air travel
Advertising clutter
Overhead power lines
Traffic signs
Urban blight
Vandalism :
War
Chemical warfare
Herbicidal warfare
Agent Orange
Nuclear holocaust
Nuclear fallout
Nuclear famine
Nuclear winter
Scorched earth
Unexploded ordnance
War and environmental law :
Water
Agricultural wastewater
Biosolids
Diseases
Eutrophication
Firewater
Freshwater
Groundwater
Hypoxia
Industrial wastewater
Marine
Monitoring
Nonpoint source
Nutrient
Ocean acidification
Oil spill
Pharmaceuticals
Freshwater salinization
Septic tanks
Sewage
Shipping
Sludge
Stagnation
Sulfur water
Surface runoff
Turbidity
Urban runoff
Water quality
Wastewater :
Topics
History
Pollutants
Heavy metals
Paint :
Misc
Area source
Brain health and pollution
Debris
Dust
Garbology
Legacy
Midden
Point source
Waste
Toxic
Lists
Diseases
Law by country
Most polluted cities
Least polluted cities by PM2.5
Treaties
Most polluted rivers
Categories
By country :
Environment portal
Ecology portal :
vte :
Chemical waste is any excess, unused, or unwanted chemical. Chemical waste may be classified as hazardous waste, non-hazardous waste, universal waste, or household hazardous waste, each of which is regulated separately by national governments and the United Nations. Hazardous waste is material that displays one or more of the following four characteristics: ignitability, corrosivity, reactivity, and toxicity. This information, along with chemical disposal requirements, is typically available on a chemical's Safety Data Sheet (SDS). Radioactive and biohazardous wastes require additional or different methods of handling and disposal, and are often regulated differently than standard hazardous wastes.

## Laboratory chemical waste in the US

The U.S. Environmental Protection Agency (EPA) prohibits disposing of certain materials down drains. Therefore, when hazardous chemical waste is generated in a laboratory setting, it is usually stored on-site in appropriate waste containers, such as triple-rinsed chemical storage containers or carboys, where it is later collected and disposed of in order to meet safety, health, and legislative requirements. Many universities' Environment, Health, and Safety (EHS) divisions/departments serve this collection and oversight role.
Organic solvents and other organic waste is typically incinerated. Some chemical wastes are recycled, such as waste elemental mercury.

### Laboratory waste containment
#### Packaging

During packaging, chemical liquid waste containers are filled to no greater than 75% capacity to allow for vapor expansion and to reduce potential spills that can occur from transporting or moving overfilled containers. Containers for chemical liquid waste are typically constructed from materials compatible with the hazardous waste being stored, such as inert materials like polypropylene (PP) or polytetrafluoroethylene (PTFE). These containers are also constructed of mechanically robust materials in order to minimize leakage during storage or transit.
In addition to the general packaging requirements mentioned above, precipitates, solids, and other non-fluid wastes are typically stored separately from liquid waste. Chemically contaminated glassware is disposed of separately from other chemical waste in containers that cannot be punctured by broken glass.

#### Labelling

Containers may be labelled with the group name from a list of chemical waste categories, along with an itemized list of the contents. All chemicals or materials contaminated by chemicals pose a significant hazard, and as such regulations require that the identity of the chemicals in a waste container is obvious.

#### Storage

Chemical waste containers are kept closed to prevent spillage, except when waste is being added. Suitable containers are labeled in order to inform disposal specialists of the contents as well as to prevent the addition of incompatible chemicals. Liquid waste is stored in containers with secure screw-top or similar lids that cannot be easily dislodged in transit. Solid waste is stored in various sturdy, chemically inert containers, such as large, sealed buckets or thick plastic bags. Secondary containment, such as trays or safety cabinets, are used to capture spills and leaks from the primary container and to segregate incompatible hazardous wastes, such as acids and bases.

### Chemical compatibility guidelines

Many chemicals react adversely when combined. Incompatible chemicals are therefore stored in separate areas of laboratories.
Acids are separated from alkalis, metals, cyanides, sulfides, azides, phosphides, and oxidizers, as when acids combine with these types of compounds, violent exothermic reactions can occur. In addition, some of these reactions produce flammable gases, which, combined with the heat produced, may cause explosions. In the case of cyanides, sulfides, azides, phosphides, etc. Toxic gases are also produced.
Oxidizers are separated from acids, organic materials, metals, reducing agents, and ammonia, as when oxidizers combine with these types of compounds, flammable and sometimes toxic compounds can be created. Oxidizers also increase the likelihood that any flammable material present will ignite, seen most readily in research laboratories with improper storage of organic solvents.
To identify unknown chemicals, some waste companies have a Chemist on staff.

## Environmental pollution
### Pharmaceuticals

Pharmaceuticals comprise one of the few groups of chemicals that are specifically designed to act on living cells. They present a special risk when they persist in the environment.
With the exception of watercourses downstream of sewage treatment plants, the concentration of pharmaceuticals in surface and ground water is generally low. Concentrations in sewage sludge and in landfill leachate may be substantially higher and provide alternative routes for EPPPs to enter the human and animal food-chain.
However, even at very low environmental concentrations (often ug/L or ng/L), the chronic exposure to environmental pharmaceuticals chemicals can add to the effects of other chemicals in the cocktail is still not studied. The different chemicals might be potentiating synergistic effects (higher than additive effects). An extremely sensitive group in this respect are foetuses.
EPPPs are already found in water all over the world. The diffuse exposure might contribute to
* extinction of species and imbalance of sensible ecosystems, as many EPPPs affect the reproductive systems of for example frogs, mussels, and fish;
* genetic, developmental, immune and hormonal health effects to humans and other species, in the same way as e.g. oestrogen-like chemicals;
* development of microbes resistant to antibiotics, as is found in India.

#### PPCPs

The use of pharmaceuticals and personal care products (PPCPs) is on the rise with an estimated increase from 2 billion to 3.9 billion annual prescriptions between 1999 and 2009 in the United States alone. PPCPs enter into the environment through individual human activity and as residues from manufacturing, agribusiness, veterinary use, and hospital and community use. In Europe, the input of pharmaceutical residues via domestic waste water is estimated to be around 80% whereas 20% is coming from hospitals. Individuals may add PPCPs to the environment through waste excretion and bathing as well as by directly disposing of unused medications to septic tanks, sewers, or trash. Because PPCPs tend to dissolve relatively easily and do not evaporate at normal temperatures, they often end up in soil and water bodies.

#### River pollution
### Textile industry

The textile industry is one of the largest polluters in the globalized world of mostly free market dominated socioeconomic systems. Chemically polluted textile wastewater degrades the quality of the soil and water. The pollution comes from the type of conduct of chemical treatments used e.g., in pretreatment, dyeing, printing, and finishing operations that many or most market-driven companies use despite "eco-friendly alternatives". Textile industry wastewater is considered to be one the largest polluters of water and soil ecosystems, causing "carcinogenic, mutagenic, genotoxic, cytotoxic and allergenic threats to living organisms". The textile industry uses over 8000 chemicals in its supply chain, also polluting the environment with large amounts of microplastics and has been identified in one review as the industry sector producing the largest amount of pollution.
A campaign of big clothing brands like Nike, Adidas and Puma to voluntarily reform their manufacturing supply chains to commit to achieving zero discharges of hazardous chemicals by 2020 (global goal) appears to have failed.
The textile industry also creates a lot of pollution that leads to externalities which can cause large economic problems. The problem usually occurs when there is no division of ownership rights. This means that the problem of pollution is largely caused because of incomplete information about which company pollutes and at what scale the damage was caused by the pollution.

### Planetary boundary

A study by "Scienmag" defines a 'planetary boundary' for novel entities such as plastic and chemical pollution. The study reported that the boundary has been crossed.

## Regulation of chemical waste

Chemicals waste may fall under regulations such as COSHH in the United Kingdom or the Clean Water Act and Resource Conservation and Recovery Act in the United States. In the U.S., the Environmental Protection Agency (EPA) and the Occupational Safety and Health Administration (OSHA), as well as state and local regulations, also regulate chemical use and disposal.

### Chemical waste in Canadian aquaculture

Chemical waste in oceans is becoming a major issue for marine life. There have been many studies conducted to try and prove the effects of chemicals in oceans. In Canada, many of the studies concentrated on the Atlantic provinces, where fishing and aquaculture are an important part of the economy. In New Brunswick, a study was done on sea urchins in an attempt to identify the effects of toxic and chemical waste on life beneath the ocean, specifically the waste from salmon farms. Sea urchins were used to check the levels of metals in the environment. Green sea urchins have been used as they are widely distributed, abundant in many locations, and easily accessible. By investigating the concentrations of metals in the green sea urchins, the impacts of chemicals from salmon aquaculture activity could be assessed and detected. Samples were taken at 25-meter intervals along a transect in the direction of the main tidal flow. The study found that there were impacts to at least 75 meters based on the intestine metal concentrations.