concentrations were expressed as lipid-standardized concentrations (wetweight levels divided by lipid concentrations) or as the lipid-standardized sum of the toxic-equivalency factor (TEF)-weighted dioxin-like concentrations (TEQs).
pesticides, chromatography, artificial intelligence, neural networks, retention time.
Helium was used as the carrier gas, and organochlorine
pesticides were identified by comparing their retention times with those of a standard mixture of PCBs and organochlorinated pesticides.
The study of 50 pregnant women found detectable levels of organochlorines
in all of the women participating in the study-including DDT, PCBs and other pesticides that have been banned from use for more than 30 years.
Analysis of breast milk to assess exposure to chlorinated contaminants in Kazakhstan: PCBs and organochlorine
pesticides in southern Kazakhstan.
pesticide residues in bovine milk from Leon (Spain).
pesticides (OCP) are synthetic chemicals and are among the most persistent pollutants in aqueous environments (BAIRD, 2002).
10] undertaken a survey in northern India, has shown the presence of high concentration of both organochlorine
and organophosphorus pesticides in the surface and ground water samples.
Only one combination showed a statistically significant pattern: higher rates of autism for mothers who were exposed to a group of chemicals called organochlorines
during their first trimester of pregnancy.
Five other research and review articles and one short communication explore how chemistry is used in environmental sciences from such perspectives as intelligent air quality monitoring using connectionist models, environmental friendly methods for extracting and determining organophosphorus and organochlorine
pesticides, and the numeral solution of some problems of environmental pollution.
Receding glaciers in the Swiss Alps are releasing high levels of long-trapped 'legacy pollutants' such as persistent organic pollutants, organochlorine
pesticides and synthetic musk fragrances into nearby lakes and ecosystems.
Previous studies have found higher than normal levels of organochlorine
pesticides such as DDT in the brains of Parkinson's patients.