Global distribution of persistent organochlorine compounds

The global distribution of 22 potentially harmful organochlorine compounds was investigated in more than 200 tree bark samples from 90 sites worldwide. High concentrations of organochlorines were found not only in some developing countries but also in industrialized countries, which continue to be h...

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Bibliographic Details
Published in:Science (American Association for the Advancement of Science) 1995-09, Vol.269 (5232), p.1851-1854
Main Authors: Simonich, S.L. (Procter and Gamble Company, Cincinnati, OH.), Hites, R.A
Format: Article
Language:English
Subjects:
Absolute value
Applied sciences
Bark
Chlorinated hydrocarbons
Chlorine
COMPOSE ORGANOCHLORE
COMPOSE VOLATIL
COMPUESTO ORGANICO DEL CLORO
COMPUESTO VOLATIL
Developed Countries
Developed Nations
Developing Countries
Distillation
DISTRIBUCION NATURAL
DISTRIBUTION NATURELLE
Environmental aspects
Environmental monitoring
Environmental Pollutants - analysis
Exact sciences and technology
Geography
Global environmental pollution
Hexanes
Hydrocarbons, Chlorinated - analysis
Insecticides
International aspects
LATITUD
LATITUDE
Lipids
Organic chemistry
Organic chlorine compounds
Organic pollution
Organochlorine compounds
POLLUTION
POLUCION
PRODUIT A BASE D'ECORCE
Scientific Concepts
Soil pollution
Trees
Trees - chemistry
TROZOS DE CORTEZA
Vapor pressure
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Summary:The global distribution of 22 potentially harmful organochlorine compounds was investigated in more than 200 tree bark samples from 90 sites worldwide. High concentrations of organochlorines were found not only in some developing countries but also in industrialized countries, which continue to be highly contaminated even though the use of many of these compounds is restricted. The distribution of relatively volatile organochlorine compounds (such as hexachlorobenzene) is dependent on latitude and demonstrates the global distillation effect, whereas less volatile organochlorine compounds (such as endosulfan) are not as effectively distilled and tend to remain in the region of use
ISSN:0036-8075
1095-9203
DOI:10.1126/science.7569923