نتایج جستجو برای: organochlorine pesticides residue
تعداد نتایج: 69218 فیلتر نتایج به سال:
Organochlorine pesticides, their toxic effects on living organisms and their fate in the environment
Organochlorine (OC) pesticides are synthetic pesticides widely used all over the world. They belong to the group of chlorinated hydrocarbon derivatives, which have vast application in the chemical industry and in agriculture. These compounds are known for their high toxicity, slow degradation and bioaccumulation. Even though many of the compounds which belong to OC were banned in developed coun...
Organochlorine pesticides (OCPs) have caused increasing global concern due to their high toxicity, persistence, bioaccumulation, and significant adverse effects on human health. This study was to explore the interaction effects between OCPs and isoflavones. Six kinds of OCPs and 2 kinds of isoflavones-genistein and daidzein were included to study their effect on MCF-7 cells in vitro. Eighty-one...
Isolation and enrichment of multiclass pesticides’ residue, namely, fungicides (benalaxyl), herbicides (atrazine), carbamate insecticides (carbofuran), organophosphate (chlorpyrifos), organochlorine (4,4′-DDT), pyrethroid (bifenthrin), were made by combining acetone-based salting-out assisted extraction with the dispersive liquid-liquid microextraction (SADLLME) method, followed high-performanc...
Man depends heavily on pesticides to boost his agricultural productions. This study aimed at carrying out a risk assessment of pesticide residues in samples beans stored and sold Wukari Town, Nigeria. Different were collected randomly from different market points within Wukari, Rafin kada Idofi. The residue analysis was carried using GC/MS after sample extraction, filtration Concentration. mean...
This is the second part of a study that evaluates the influence of nonpoint sources on the sediment quality of five adjacent streams within the metropolitan Kansas City area, central United States. Physical, chemical, and toxicity data (Hyalella azteca 28-day whole-sediment toxicity test) for 29 samples collected in 2003 were used for this evaluation, and the potential causes for the toxic effe...
OBJECTIVE As a consequence of environmental exposure, organochlorine pesticides accumulate in lipid rich-tissues such as maternal adipose tissue and partition to maternal blood serum and umbilical blood serum. To establish their distribution in the human body, the concentration gradients of organochlorine pesticides between these compartments were determined. MATERIAL AND METHODS Maternal adi...
An application of large quantity of agricultural pesticides in rural area is a common practice in order to increase the productivity and yield, to protect the agricultural crop from pests and prevent products lost due to insect and bacterial contamination is a common practice. Resistance and mutation of some pests to chemicals are the causes of using larger quantity of pesticide in the developi...
A method is described for the determination of organochlorine pesticide residues in human gallstones. The difficulty caused by the presence of large amounts of cholesterol in the stones is overcome by an acetylation step in the “clean-up” procedure, and the method finishes with identification and determination of the individual pesticides by gas-liquid chromatography. Results are given for 28 s...
The quantities of organochlorine insecticide residues in mynas (Acridotheres tristis L.) and especially in their eggs and nestlings reflected the concentrations of these pesticides in the soil of the birds' territories. Nearly all residues were derived from contamimated invertebrates, not fruit. Samples of soil, eggs and nestlings from areas adjacent to sprayed orchards contained little pestici...
The present study was aimed to validate an analytical method for the quantification of 19 organochlorine and 2 synthetic pyrethroid pesticide residues in water samples using modified quick, easy, cheap, effective, rugged safe (QuEChERS) extraction Gas Chromatography coupled with Electron Capture Detector (ECD). selected were determined by in-house validated method. evaluating accuracy, precisio...
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