All exposure determinations and risk assessments ultimately depend on accurate chemical analyses, and therefore some critical aspects of analysis for 2,4-D residues have been included in the present document. The available ...

Technical endosulfan (6,7,8,9,10, 10-hexachloro-1,5,5a,6, 9,9a, hexahydro 6,9-methano-2,4,3-benodioxathiepin, 3-oxide) is a brown crystalline substance consisting of alpha- and beta-isomers in the ratio of approximately ...

This document comprises a review of data on the effects of ELF fields, predominantly ELF electric fields at 50 and 60 Hz, on biological systems pertinent to the evaluation of health risks for man. The purpose of the document ...

Glyphosate is a weak organic acid consisting of a glycine and a phosphonomethyl moiety. The empirical formula is C3H8NO5P. Glyphosate is usually formulated as a salt of the deprotonated acid of glyphosate and a cation, ...

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 ...

?letaliic vanadium does not occur in nature. Over 70 vanadium minerals are known, carnatite and vanadinite being the most important from the point of view of mining. Production of vanadium is linked with that of other ...

Ammonia (NH3) is a colourless acrid-smelling gas at ambient temperature and pressure. It can be stored and transported as a liquid at a pressure of 10 atm at 25 C. Ammonia dissolves readily in water where it forms, and is ...

The terms 'fluorine" and 'fluoride' are used interchangeably in the literature as generic terms. In this document, the terminology suggested by US NAS (1971) is followed: "This document, rather than following common usage, ...

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 ...

Paraquat (l,l'dimethyl, 4,4' bipyridyl) is a nor selective contact herbicide. It is produced in several countries including China, Province of Taiwan, Italy, Japan, the United Kingdom, and the USA, and it is used world-wide ...