Trends of organochlorine pesticides in drinking water supplies

Thacker, Neeta; Bassin, J. K.; Deshpande, V. P.; Devotta, S.

doi:10.1007/s10661-007-9764-5

Cited by 11 publications

(5 citation statements)

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“…These pesticides are found in 73% of the 85 samples analyzed during 2000–2005 [18]. The levels of OClPs , lindane, p,p’ DDT, p,p’ DDE, p,p’ DDD, endosulphan I, endosulphan II monitored and reported in urban water resources, viz; river, lake, tubewells and intake and final water treatment plants of major cities in India like, Delhi, Mumbai and Nagpur [19].…”

Section: Resultsmentioning

confidence: 99%

Comparison of pesticide residues in surface water and ground water of agriculture intensive areas

Lari

Khan

Gandhi

et al. 2014

J Environ Health Sci Engineer

147

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The organochlorines (OClPs) and organophosphates (OPPs) pesticides in surface and ground water having intensive agriculture activity were investigated to evaluate their potential pollution and risks on human health. As per USEPA 8081 B method, liquid-liquid extraction followed by Gas-Chromatographic technique with electron capture detector and mass selective detector (GC-MS) were used for monitoring of pesticides. Among organochlorines, α,β,γ,δ HCH’s, aldrin, dicofol, DDT and its derivatives, α,β endosulphan’s and endosulphan-sulphate were analysed; dichlorovos, ethion, parathion-methyl, phorate, chlorpyrifos and profenofos were determined among organophosphates.As compared to ground water, higher concentrations of OClPs and OPPs were found in surface water. Throughout the monitoring study, α - HCH (0.39 μg/L in Amravati region),α - endosulphan (0.78 μg/L in Yavatmal region), chlorpyrifos (0.25 μg/L in Bhandara region) and parathion-methyl (0.09 μg/L in Amravati region) are frequently found pesticide in ground water, whereas α,β,γ-HCH (0.39 μg/L in Amravati region), α,β - endosulphan (0.42 μg/L in Amravati region), dichlorovos (0.25 μg/L in Yavatmal region), parathion-methyl (0.42 μg/L in Bhandara region), phorate (0.33 μg/L in Yavatmal region) were found in surface water.Surface water was found to be more contaminated than ground water with more number of and more concentrated pesticides. Among pesticides water samples are found to be more contaminated by organophosphate than organochlorine. Pesticides in the surface water samples from Bhandara and Yavatmal region exceeded the EU (European Union) limit of 1.0 μg/L (sum of pesticide levels in surface water) but were within the WHO guidelines for individual pesticides.

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Section: Resultsmentioning

confidence: 99%

Comparison of pesticide residues in surface water and ground water of agriculture intensive areas

Lari

Khan

Gandhi

et al. 2014

J Environ Health Sci Engineer

147

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“…Studies on other micropollutants like pharmaceuticals were carried out rarely [19]. The existing drinking water treatment technologies are not sufficient to remove all micropollutants from source water [15,20,21]. Consequently, and in light of the imminent risk from OMPs, the selection of source water has to be done very carefully, especially if surface water is directly abstracted for drinking water production.…”

mentioning

confidence: 99%

Water Quality Monitoring in Northern India for an Evaluation of the Efficiency of Bank Filtration Sites

Glorian

Börnick

Sandhu

et al. 2018

Water

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The study presents results of five sampling campaigns at riverbank filtration sites at the Yamuna and Ganges Rivers in Uttarakhand, Uttar Pradesh and New Delhi 2015-2018. Samples were analyzed for organic micropollutants and general water quality parameters. In New Delhi and Uttar Pradesh, 17 micropollutants were detected frequently at relevant concentrations. Out of the detected micropollutants, 1H-benzotriazole, caffeine, cotinine, diclofenac, diuron, gabapentin and paracetamol were frequently detected with concentrations exceeding 1000 ng/L. Sites in Uttarakhand showed only infrequent occurrence of organic micropollutants. The mean concentration of micropollutants in the well water was lower compared to the river water. For all sites, removal rates for all micropollutants were calculated from the obtained data. Thereby, the capacity of riverbank filtration for the removal of organic micropollutants is highlighted, even for extremely polluted rivers such as the Yamuna.2 of 15 sporadically for some sites. Apart from several studies on general water quality parameters and heavy metals [8][9][10][11], only a few studies have shown the occurrence of OMPs. In this context, monitoring data for organochlorine pesticides have mainly been published [12][13][14][15][16][17][18]. Studies on other micropollutants like pharmaceuticals were carried out rarely [19]. The existing drinking water treatment technologies are not sufficient to remove all micropollutants from source water [15,20,21]. Consequently, and in light of the imminent risk from OMPs, the selection of source water has to be done very carefully, especially if surface water is directly abstracted for drinking water production. In case of polluted river water, RBF provides a pre-treatment for the removal of, among others, OMPs [10,22]. The removal rate depends on compound-specific properties (biodegradability and adsorption behavior) as well as on water quality, geochemical composition of aquifer material and hydraulic boundary conditions [23].The aim of the presented study is to expand the knowledge of organic and inorganic water quality at RBF sites over four years in the upper part of the Ganges and Yamuna Rivers. This includes the occurrence and removal of organic micropollutants as well as general inorganic water quality parameters. Furthermore, the efficiency of RBF at these sites to remove OMPs is characterized for the first time (other than Delhi [7]). For this purpose, different general parameter (e.g., main anions and cations, DOC) and selected typical anthropogenic organic micropollutants were analyzed. Materials and Methods Study SitesThe monitoring was done at nine selected sites in Uttarakhand, Uttar Pradesh and in New Delhi, India (Figure 1, Table 1). At every site one surface water sample and one well water sample was taken. The sites are located along the rivers Yamuna, Ganges and their tributaries. Depending on the distance from the riverbank, the production rate and duration of operation (h/day), the wells abstract a low (Agastmuni) to high (H...

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“…This is undoubtedly comforting if we do not consider the effects of the combination of several pesticides in the same product, which is still an open public health issue. Surface water that is to undergo disinfection for human consumption, being less protected than underground water, is usually checked for pesticides [46]. The Lyon IARC [47], after a study on pesticides, concluded that some of them may cause stomach, pancreas, colon, bladder, kidney and skin cancer, as well as lymphomas.…”

Section: Pesticidesmentioning

confidence: 99%