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Showing 1 to 20 of 22 for “"Organochlorine pesticides"”.
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Ecological Magnification of Persistent Organochlorine Pesticides in an Illinois Watershed
… and ecological magnification of selected organochlorine pesticides in aquatic organisms of the Lake Decatur watershed in central Illinois were determined in this study. A review of the use of persistent organochlorine pesticides in the United States and the study area is provided. Samples …
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Supercritical fluid extraction of polychlorinated biphenyls and organochlorine pesticides from mussel tissue (Mytilus edulis)
… one polychlorinated biphenyls (PCBs) and eight organochlorine pesticides (OCPs) from freeze dried mussel tissue is discussed, demonstrated, and compared to traditional Soxhlet extractions. The aim of this study was to determine the efficacy of SFE for the extraction of these lipophilic compounds …
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Organochlorine Pesticide Residue in Fish Fillets From Lake Springfield, Missouri
A method for extracting organochlorine pesticides from fish fillets using solid phase extraction techniques was developed. Fish fillets (10 and 20 g) were ground with 20 g of anydrous sodium sulfate. This mixture was then extracted with 100 mL of hexane, filtered and passed through a Chem Elut …
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Studies on the excretion of pesticides in human milk as a means of investigating exposure and assessing the risk to infants in Indonesia
Humans bioaccumulate organochlorine pesticides throughout their lifetime due to the global environmental presence and physiochemical properties of these compounds, however, monitoring the current and lifetime exposure of the population to these compounds is complex. The collection and analysis of …
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Assessment of pesticide concentrations in environmental and biological parameters from two Kenyan Rift Valley Lakes
… of pesticide contamination...Globally, most organochlorine pesticides have been banned, but endosulfan, HCH and methoxychlor are widely used in Kenya, while aldrin, dieldrin and lindane are restricted and DDT, endrin, and heptachlor banned. Studies examining residue levels of these harmful …
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A Survey of Superfund Chemicals in Massachusetts Farms
… (PAHs), polychlorinated biphenyls (PCBs), organochlorine pesticides (OCPs), and volatile organic compounds (VOCs)) in water, soil and produce samples from organic farms in Massachusetts, USA. Measured concentrations were compared to regional and federal limits where applicable; few …
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Investigation of Persistent Organic Pollutants in Breast Milk // Изследване на устойчиви органични замърсители в майчино мляко
… for 29 POPs (polychlorinated biphenyls, PCBs and organochlorine pesticides, OCPs). A gas chromatographic method with mass detection was modified and validated for the simultaneous quantitative determination of PCBs and OCPs in breast milk samples. Residues of the analysed POPs were found in all …
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Ecotoxicology and environmental education in the development of a turtle conservation program in Southeastern Tennessee
… diphenyl ethers (PBDEs), and a suite of organochlorine pesticides including DDT, mirex and hexachlorobenzene. The second objective was to examine possible differences in their concentration based on two parameters, species and gender. The final objective of this study was to develop …
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Aspects of the biology of fish populations from the Medway Estuary, based on power station intake sampling with special reference to parasitism and pollution
… of their dietary constituents, were analysed for organochlorine pesticides, polychlorinated biphenyls and five heavy metals. Heavy metal levels were low in comparison with other A literature values. Chlorinated hydrocarbon values showed no marked seasonal variations connected with agricultural …
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Biomonitoring of wild fish to assess chemical pollution in English rivers : an application of a fish tissue archive
… for one or more groups of chemicals: metals, organochlorine pesticides, PCBs and PBDEs. The results from the individual fish were compared to each other as well as to regulatory standards and previously published UK and European data. Some of the results are: With the exception of lead in 3% …
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A study of the distribution of selected anthropogenic micropollutants in the seawater of Dublin bay
… on the ubiquity and on the harmful effects of organochlorine compounds, in particular organochlorine pesticides. In the 1970s the malign effect that xeno-estrogenic material could have on biological systems became apparent and the increasing incidence of such polluting material, frequently …
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High-throughput analytical methods for persistent organic pollutants in high-lipid matrices.
… of multiple classes of organic pollutants (organochlorine pesticides, polychlorinated biphenyls, and polybrominated diphenyl ethers). Analytical methods for lipid-rich matrices, such as marine mammal blubber (Weddell seal Leptonychotes weddelli and bowhead whale blubber Balaena mysticetus) …
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Effects of Exposure to Environmental Pollutants on Markers of Adiposity and Inflammation
… in waist circumference (WC), while in men, organochlorine pesticides (OCPs) were more strongly associated with change in body mass index (BMI) and WC. In both sexes, β-hexachlorocyclohexane (β-HCH) was positively associated with change in BMI and WC. Effect modification analyses further …
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The nongenomic effects of physiological and environmental estrogens on dopamine transporter function
… estriol (E3)] and xenoestrogens (XEs), such as organochlorine pesticides [dieldrin, endosulfan, and o¡¯,p¡¯-dichlorodiphenylethylene (DDE)], plastics manufacturing by-products/detergents (nonylphenol, bisphenol A), and the synthetic estrogen DES for effects on DAT function. We characterized …
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Effects of methoxychlor and its metabolites on mouse antral follicles
… are exposed to numerous chemicals including organochlorine pesticides that are introduced into the environment on a daily basis. Some of these chemicals exert their toxicity by binding to estrogen receptors in inappropriate manners or by inhibiting the ability of endogenous estrogen to bind …
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The use of cultured cells with defects of citrulline metabolism in diagnosis and in the study of intercellular communication
… Tumor promoters such as phorbol esters and organochlorine pesticides have been reported to inhibit intercellular junctional communication in other systems, and this inhibitory activity may be related to the mechanism of tumor promotion. The organochlorine pesticide 1,1,1-trichloro- …
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The application of active and passive bioaccumulation methods to measure metallic and organic pollutants along the Namibian coastline
… mercury system (FIMS). The concentrations of organochlorine pesticides (OCPs) and polychlorinated biphenyl (PCB) were analysed in both SPMD and mussels following QuECHERS extraction methods and using a GC-20230 Plus coupled with a GCMS-TQ8050 NX triple quadruple mass spectrometer. The element …
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ORGANIC MICROPOLLUTANTS ANALYSIS AND THEIR METROLOGICAL TRACEABILITY TO SI UNITS
… and on two organic molecules: - endosulfan, an organochlorine pesticide banned in 2011 due to its toxicity, analysed in green tea; - melamine, a molecule commonly used in the plastic industry which became famous for its fraudulent use as adulterant of the protein content of milk in 2008. Ad hoc …
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A Multi-Scale analysis of organochlorine pesticide contamination in raptor populations: research effort, historical trends, and current concentrations
… many decades. The environmental consequences of organochlorine pesticides, particularly Dichlorodiphenyltrichloroethane's (DDT) were made famous by Rachel Carson's book, Silent Spring in the early 1960s. Their impacts on environmental and human health were subsequently widely recognised and led …
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