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Results 1 - 10 from 23 for cfcs and halons in 0.366 sec.
Guide to 'Environmental quality' section - Environmental Data Compendium
(N2O). CFCs and halons are the main substances affecting the ozone layer. Guide to 'National air quality' section Good air quality at ground level is important for people and for ... Groundwater quality comes under particular pressure as a result of emissions of nitrate and phosphate, heavy metals and pesticides. The deterioration of groundwater quality constitutes a threat to the ...
www.mnp.nl
Guide to 'Environmental quality' section - Environmental Data Compendium
(N2O). CFCs and halons are the main substances affecting the ozone layer. Guide to 'National air quality' section Good air quality at ground level is important for people and for ... Groundwater quality comes under particular pressure as a result of emissions of nitrate and phosphate, heavy metals and pesticides. The deterioration of groundwater quality constitutes a threat to the ...
www.mnp.nl
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ozone
Ozone depletion in the upper atmosphere is the result of human-produced chemicals, such as chlorofluorocarbons (CFCs) and halons. Depletion is especially severe ... 1970s. The Montreal Protocol, signed in 1987 and subsequently strengthened, has led to phase out of most CFC and halon use. However, CFCs and halons last for a long time in the atmosphere, ...
www.dar.csiro.au
The ozone layer, depletion and uv radiation
Halons, for example, are more efficient than CFCs in depleting ozone, and therefore have a higher ODP. Chlorofluorocarbons (CFCs), halons, methyl chloroform, methyl bromide, carbontetrachloride and several other chemicals are ozone-depleting substances. When CFCs and halons ... earth's surface. Because it takes so long for the CFCs and halons to reach the stratosphere, any reduction in their use on ...
www.eco-action.org
EIA - The Environmental Investigation Agency: Global Environment Campaign | Campaign Index
CFCs and halons. EIA is the only international NGO working to expose the smuggling of ozone-depleting substances, and is the acknowledged expert group on ... -traded CFCs and halons, and the activities of a group of US firms using false paperwork to avoid detection. This report prompted the US authorities to tighten import procedures for these chemicals and ...
www.eia-international.org
EIA - The Environmental Investigation Agency: Skills Sharing | Enforcement Assistance | Activities | Ozone
UNEP, enforcement authorities, industry and the Ozone Secretariat to assist the enforcement ... and updated documentation on illegal ODS trade to national and intergovernmental enforcement authorities to assist them in upholding national and international regulations concerning prohibitions and restrictions on the production, sale or use of CFCs and halons ...
www.eia-international.org
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Special Pollutant: Chlorofluorocarbons (CFCs) - Minnesota Pollution Control Agency
MPCA Home > Air > Special Pollutant: Chlorofluorocarbons (CFCs) Special Pollutant: Chlorofluorocarbons (CFCs) Chlorofluorocarbons (CFCs), hydrofluorocarbons (HCFCs) and halons destroy the earth's protective ozone layer ... that suggests man-made compounds such as chlorofluorocarbons (CFCs), hydrofluorocarbons (HCFCs) and halons destroy ozone in the upper atmosphere (stratosphere). Decreased ...
www.pca.state.mn.us
Science - Ozone Depletion
CFCs). Once widely used as propellants in spray cans, refrigerants, electronics cleaning agents, and in foam and Click here for larger image insulating products, the CFCs had ... has harmful effects on plants and animals, including humans. The chlorine and bromine in human-produced chemicals such as the ones known as chlorofluorocarbons (CFCs) and halons are depleting ozone in ...
www.ozonelayer.noaa.gov
Clean Air Online - Understanding Air Quality, Climate Change and Ozone Depletion
Greenhouse gases (e.g. carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O), sulphur hexafluoride (SF6), perfluorocarbons (PFCs), hydrofluorocarbons (HFCs), chlorofluorocarbons (CFCs), and ozone (O3) Chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs), and halons ...
www.ec.gc.ca
Numbering Scheme for Ozone-Depleting Substances and their Substitutes | Ozone Layer Depletion | US EPA
Substitutes Numbering Scheme for Ozone-Depleting Substances and their Substitutes Various ozone-depleting substances (CFCs, HCFCs, HBFCs, and halons) and their substitutes (HFCs, HCs, and PFCs) are numbered according to a system devised several decades ago and ...
epa.gov
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