This volume concentrates on regulated chemicals and chemicals of special interest due to widespread contamination or considerable hazard, ranging from a high probability of widespread, low environmental impact to low probability of local high environmental impact. It is a reference of physical, chemical and biological dangers of mixtures. Listings include: CAS number; SAX number - sampling, analysis and detection limits; environmental transport, fate and effects; structural formula drawing; molecular formula; common uses; manufacturers; odour thresholds; regulatory jurisdictions and authorities; standards; reactions; monitoring methods; international data; and synonym index.