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Copper - Environmental Health Criteria 200
(1998)
Copper is a reddish-brown, ductile and malleable metal. It belongs to group IB of the Periodic Table. In compounds found in the environment it usually has a valence of 2 but can exist in the metallic, +1 and +3 valence ...
Methyl Tertiary-Butyl Ether - Environmental Health Criteria 206
(1998)
Methyl tertiary-butyl ether (MTBE) is one of several ethers that may be used as fuel additives and is currently by far the dominant one. Ethyl tertiary-butyl ether (ETBE), tertiary-amyl methyl ether (TAME), tertiary-amyl ...
Diazinon - Environmental Health Criteria 198
(1998)
The chemical name for diazinon is O, O-diethyl O-2-isopropyl-6-methylpyrimidinyl-4-yl phosphorothioate. The pure material forms a colourless liquid with a faint ester-like odour. The technical active ingredient is a ...
Chrysotile Asbestos - Environmental Health Criteria 203
(1998)
Chrysotile is a fibrous hydrated magnesium silicate mineral that has been used in many commercial products. It is widely used in global commerce today. Its physical and chemical properties as a mineral are observed to vary ...
Polybrominated Dibenzo-p-Dioxins and Dibenzofurans - Environmental Health Criteria 205
(1998)
Polybrominated dibenzo-p-dioxins (PBDDs) and polybrominated dibenzofurans (PBDFs) are almost planar tricyclic aromatic compounds.
Theoretically, 75 PBDDs and 135 PBDFs are possible. In addition, a large number of mixed ...
Selected Non-Heterocyclic Polycyclic Aromatic Hydrocarbons - Environmental Health Criteria 202
(1998)
Polycyclic aromatic hydrocarbons (PAH) constitute a large class of compounds, and hundreds of individual substances may be released during incomplete combustion or pyrolysis of organic matter, an important source of human ...
Selected Chloroalkyl Ethers - Enviromnental Health Criteria 201
(1998)
Bis(2-chloroethyl) ether (BCEE), bis(chloromethyl) ether (BCME) and chioromethyl methyl ether (CMME) are chemicals from
a large class known as chloroalkyl ethers. The three ethers are colourless volatile liquids at room ...
Hexachlorobenzene Health and Safety Guide - Health and Safety Guide 107
(1998)
At ambient temperature, HCB is a white crystalline solid. Technical grade HCB is available as a wettable powder, liquid or dust. It is virtually insoluble in water, but is soluble in ether, benzene, chloroform and hot ...
Carbon Tetrachloride Health and Safety Guide - Health and Safety Guide 108
(1998)
Carbon tetrachioride is a volatile, colourless, clear, heavy liquid with a characteristic sweet, non-irritant odour. The odour threshold in water is 0.52 mg/litre, and in air it is >64.1 mg/m3 (10 ppm). Carbon tetrachioride ...
Mine Rehabilitation for Environment and Health Protection - A Training Manual
(1998)
This manual has been prepared jointly by the United Nations Environment Programme, Industry and Environment (UNEP JE) and the World Health Organisation (WHO). It complements an earlier trainer's package on Environmental ...