Persistent organochlorines such as ΣDDT, chlordane, hexachlorobenzene (HCB), heptachlor and endosulfan were determined in water and sediment samples of freshwater systems in the Eastern Cape Province of South Africa that receive runoff from agricultural lands and effluents from industries. The organochlorine pesticides (OCPs) in water and sediments were determined by liquid/liquid extraction an...

Persistent organic pollutants (POPs) can travel thousands of miles, accumulate in the food chain, and persist in the environment, taking as long as centuries to degrade. POPs are known to play a role in birth defects, cancer, immune system dysfunction, and reproductive problems in wildlife. While the effects of POPs on human health are unclear, many researchers believe that long-term exposure c...

The levels of 18 organochlorine pesticides (OCPs) in the water from Lake Chaohu were measured by a solid phase extraction-gas chromatography-mass spectrometer detector. The spatial and temporal distribution, possible sources, and potential ecological risks of the OCPs were analyzed. The annual mean concentration for the OCPs in Lake Chaohu was 6.99 ng/L. Aldrin, HCHs, and DDTs accounted for lar...

This study used gas chromatograph-mass spectrometer (GC-MS) to determine three kinds of halogenated organic pollutants (HOPs) in the edible muscles nine fish species Laibin section Hongshui River Xijiang Pearl system. The results showed that sum organochlorine pesticides (OCPs), polychlorinated biphenyls (PCBs), and polybrominated diphenyl ethers (PBDEs) muscle was 8.94∼43.32 ng/g ww, 1.22∼4.09...

In this paper, it is analyzed the temporal variation of organochlorine pesticides (OCPs) in water and sediments from a river influenced by activity an agricultural field tropical country during period 2013-2016. The novelty consists increasing studies concentrations OCPs rivers for contributing to establish thresholds that allow protect biota soils waters. mean values dissolved sorbed on varied...

Abstract Organochlorine is a synthetic pesticide that has been banned in many countries because of its high persistence the environment and can accumulate animals. The goal our study was to determine level organochlorine residues surface water mussel Corbicula sumatrana Lake Singkarak. Water samples were collected from 10 sampling sites Singkarak, Batu Taba, Sumpur, Guguk Malalo, Ombilin, Tikal...

In this study total of 150 samples emulsion type meat products (Luncheon & Frankfurter) (75 each) were collected from local and supermarkets in Giza governorate, Egypt. Samples subjected to determination residue antibiotics, zeranol, trenbolone, heavy metals (Cadmium, lead, Zinc Arsenic) pesticides (OPPs OCPs). The proved that the incidence percent organophosphorus arsenic zero all samples, zer...

Despite the fact that most persistent toxic substances have hardly been primarily emitted for several decades, their concentrations are only slowly decreasing in the global oceans. Surface seawater samples were collected along a 38°-24° N/28°-67° W transect in the subtropical North Atlantic Ocean. While the concentration levels of hexachlorobenzene (2.1-6.1 pg L-1), dichlorodiphenyltrichloroeth...