[b] Organochlorine and Organophosphorous pesticides residues in Water of River Ganga at Bhagalpur, Bihar, India[/b]
Journal Title: International Journal of Research in Chemistry and Environment (IJRCE) - Year 2011, Vol 1, Issue 1
Abstract
[i]River Ganga along with its tributaries is the largest and also a very important river basin of India. The river Ganga, a holy river has over the years been subjected to tremendous pressure due to discharge of untreated sewage, industrial effluents, residues of pesticides and insecticides used in farms which has adversely affected the ecological health of the river and its basin The objective of this study was to identify and quantify some selected pesticides both organochlorine and organophosphorous present in water of River Ganga at Bhagalpur. These pesticides are mainly used to control the soil and crop pests in agricultural fields and direct dumping of wastes in to river systems. Combination of their physico-chemical properties such as low aqueous solubility, moderate vapor pressure and octanol – water partition coefficient and persistence in the environment make them capable of long-range transport. Water samples from 3 sites (up stream, mid stream and down stream) were collected and analyzed for their pesticide profile. The study has shown the presence of both organochlorine and organophosphorous pesticides in the water of River Ganga at Bhagalpur. Liquid-liquid extractions followed by GC-ECD were used for the determination of these compounds. Among the various pesticides analyzed, high concentration of Methyl parathion, Endosulfan and DDT were observed in water samples collected from the River Ganga at Bhagalpur. Especially, the concentration of DDT was quite high which might be due to slow degradation of DDT in soil i.e. 75 –100% in 4-30 years. The present study was first attempt to identify and quantify some selected pesticides in water and sediment of the river Ganga at Bhagalpur, and may be important as the Bhagalpur city gets its water supply from the river for drinking purposes.[/i]
Authors and Affiliations
Singh Leena , Choudhary S. K. , Singh P. K.
Keywords
Related Articles
- EP ID EP103995
- DOI -
- Views 105
- Downloads 0
Role of Rose Bengal-Oxalic Acid System for Generation of Electrical Energy in Photo Galvanic Cell
Rose Bengal is used as a photo sensitizer in photo galvanic cell for solar energy conversion and Oxalic Acid is used as an electron donor in this study. The effects of various parameters like pH, light intensity, dif...
Simultaneous Spectrophotometric Determination of Ponceau-S and Erythrosine in Pharmaceutical, Cosmetic and Food Samples by Using Mean Centering of Ratio Spectra Method
A new micelle-mediated extraction method for ultra-trace quantities of ponceau-s and erythrosine as a prior step to their simultaneous Spectrophotometric determination has been developed. The mean centering (MC) of r...
A New Aza-Indigo Dye and Pigment
A new and unequivocal synthesis of Aza-indigo is described. In this process or reaction, a hexacyclic heterocyclic compound, 2-aminopyridine was used as the substrate. The parent compound Aza-indigo or pyridinylindigo wa...
Geochemical Partitioning of Some Heavy Metals in Dumpsite Soils in Kaduna Metropolis, Nigeria
Heavy metals are potentially toxic to human life and the environment. Metal toxicity depends on chemical associations in soils. Therefore determination of the chemical form of metals in soils is important in order to...
Evaluating the Anti Microbial Effects of the Extract from 3 Plants (Thyme, Pennyroyal, Savory) On Spore Growth, Spore Elimination and Growth of Bacillus Cereus
The increased attention toward replacing chemical antimicrobials and anti oxidants with natural remedies has led to increased studies about plant derivatives and seeking natural plant extracts, in order to find...