Dinitro-Ortho-Cresol (Paperback)

Evaluates the risks to human health and the environment posed by exposure to dinitro-"ortho"-cresol, a chemical used for over a century as an acaricide, larvicide, and ovicide to control the dormant forms of many insects in orchards. The chemical is also sprayed on potatoes to prevent virus and disease contamination of the tubers. Although the chemical's use as a pesticide has been banned in many countries, significant volumes of obsolete stocks are still found in several parts of the world, especially in developing countries. Dinitro-"ortho"-cresol continues to be used in the plastics industry as an inhibitor of polymerization in styrene and vinyl aromatic compounds. Concerning environmental behavior studies indicate that the chemical is rapidly biodegraded in soil and has no potential to volatilize when released to water. Evidence further suggests that uptake by treated fruit trees or potatoes leaving residues at harvest time does not occur. Food is therefore not considered an important source of exposure for the general population. Occupational exposures during agricultural spraying and during manufacturing and formulation are regarded as the principal sources of human exposure. The most extensive part evaluates the results of toxicity studies in laboratory mammals and "in vitro "test systems. Short-term dietary administration decreased body-weight gain in some species, usually without significant alteration in food consumption. At high doses, adverse effects on the liver have been observed. Data on embryotoxicity, teratogenicity, mutagenicity, and carcinogenicity were judged inadequate for evaluation. The evaluation of effects on human health draws on data obtained during the limited use of dinitro-"ortho"-cresol in the 1930s as a therapeutic agent for the treatment of obesity and on cases of acute poisoning. Symptoms associated with toxicity include restlessness, flushed skin, sweating, thirst, deep and rapid respiration, severe increase of body temperature, and cyanosis leading to collapse, coma, and death. Concerning adverse effects on occupationally exposed workers, the report cites a dramatic decline over the last 25 years in reported cases of occupational intoxication. The decline is attributed to better education of users, the use of adequate protective equipment, and improvements in application techniques, equipment, and formulations. The report concludes that when used according to registered recommendations, and when measures for personal protection are followed, exposure to dinitro-"ortho"-cresol is reduced to levels that do not cause systemic toxicity.

General

Imprint:	World Health Organization
Country of origin:	Switzerland
Series:	Environmental Health Criteria, No. 220
Release date:	December 2000
First published:	December 2000
Producers:	Who?
Authors:	Who? • Ipcs
Dimensions:	229 x 152 x 5mm (L x W x T)
Format:	Paperback - Trade
Pages:	112
ISBN-13:	978-92-4-157220-0
Categories:	Books > Science & Mathematics > Biology, life sciences > Biochemistry > Toxicology (non-medical) Books > Earth & environment > The environment > Pollution & threats to the environment > General Books > Professional & Technical > Industrial chemistry & manufacturing technologies > Industrial chemistry > Insecticide & herbicide technology Books > Professional & Technical > Agriculture & farming > Pest control > General Books > Medicine > General issues > Public health & preventive medicine > Personal & public health > Environmental factors Promotions
LSN:	92-4-157220-5
Barcode:	9789241572200

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