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Welcome to the NAEI website
oxic air pollution
Actions on Toxic Air Pollution
1998 Aarhus Protocol on Persistent Organic Pollutants (POPs)
1998 Heavy Metals Potocol
Integrated Pollution Control
Integrated Pollution Prevention and Control
Local Air Pollution Control (LAPC)
UK Air Quality Strategy
Many toxic air pollutants have been specified for control under recent international protocols extending the Convention on Long-range Transboundary Air Pollution. There are Persistent Organic Pollutants (POPs) and Heavy Metals (HMs). The effects of these pollutants range from simple irritants to extreme toxicity. The list on the right does not include all species but presents those of highest concern which currently have emissions inventory information.

More information on the impacts and problems associated with Toxic Air Pollution can be found from the following sites.


ARICS Encyclopedia of the Atmospheric Environment The Encyclopedia of the Atmospheric Environment is supported by the DEFRA. The Encyclopedia is a one-stop source of information, for younger and older users alike, on a range of atmospheric issues.
Toxic Air Pollution Pollutants
A NMVOC species that is a suspected carcinogen which is hazardous to health and contributes to groundlevel ozone formation which is also hazardous to health 1,3-butadiene
Toxic to human health in high concentrations Ammonia
Metals that can accumulate in our human bodies, the food chain and in sediments and is toxic to human health and the environment Arsenic
A NMVOC species that is a known carcinogen which is hazardous to health and contributes to groundlevel ozone formation which is also hazardous to health Benzene
One of many Polycyclic Aromatic Hydrocarbons PAH is term encompassing a wide range of compounds which consist of two or more fused aromatic rings made entirely from carbon and hydrogen. Airborne PAH include substances which are probable or possible carcinogens and when inhaled, are believed to contribute to the formation of lung cancer in humans. Benzo[a]pyrene
Toxic to plant and animal life Beryllium
Metals that can accumulate in our human bodies, the food chain and in sediments and is toxic to human health and the environment Cadmium
Toxic to humans at high concentrations Carbon Monoxide
Metals that can accumulate in our human bodies, the food chain and in sediments and is toxic to human health and the environment Chromium
Metals that can accumulate in our human bodies, the food chain and in sediments and is toxic to human health and the environment Copper
A known group of carcinogens which can accumulate in our bodies, the food chain and in sediments and are toxic to human health and the environment Dioxins (PCDD/F)
A persistent chlorinated pesticide which may accumulate in the environment and pose a health threat gamma-HCH (Lindane)
Metals that can accumulate in our human bodies, the food chain and in sediments and is toxic to human health and the environment Lead
Metals that can accumulate in our human bodies, the food chain and in sediments and is toxic to human health and the environment Mercury
Metals that can accumulate in our human bodies, the food chain and in sediments and is toxic to human health and the environment Nickel
Toxic to humans in high concentrations and an irritant responsible for respratory problems such as asthma and bronchitis. Nitrogen Oxides as NO2
Many species are toxic and some e.g. benzene are known for their potential cancer causing effects Non Methane VOC
Polycyclic Aromatic Hydrocarbons PAH is term encompassing a wide range of compounds which consist of two or more fused aromatic rings made entirely from carbon and hydrogen. The groupr refered to here is a group of 16 including Benzo[a]pyrene specified as harmful by the USEPA. Airborne PAH include substances which are probable or possible carcinogens and when inhaled, are believed to contribute to the formation of lung cancer in humans. PAHs (USEPA 16)
Llinked with respiritory problems and asthma PM10 (Particulate Matter < 10µm)
Poly chlorinated biphenols, persistant organic compounds that are toxic to plants and animals and accumulate in the environment. Polychlorinated biphenyls
Metals that can accumulate in our human bodies, the food chain and in sediments and is toxic to human health and the environment Selenium
Toxic to human health in high concentrations Sulphur Dioxide
Metals that can accumulate in our human bodies, the food chain and in sediments and is toxic to human health and the environment Vanadium
Metals that can accumulate in our human bodies, the food chain and in sediments and is toxic to human health and the environment Zinc
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