Monitoring of Pesticide Residues in Different Sources of Drinking Water of Jaipur, India

Singh, Banani; Gupta, Alamelu

doi:10.1007/s00128-002-0008-7

Cited by 3 publications

(2 citation statements)

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“…In the case of flowing waters the pesticide residues may travel long distances to cause contamination up to distal ends. Singh and Gupta (2002) determined that periodical changes in contamination in tube well, open well and lake water around Jaipur, India. The kind of pesticides residues and their concentrations present varied among the three kinds of water bodies, as well as with time, from year to year.…”

Section: Xenobiotics Atrazinementioning

confidence: 99%

Fate of Environmental Pollutants

Darnault¹,

Canbulat²,

Canbulat³

et al. 2003

Water Environment Research

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This section covers studies published during the calendar year 2002 on the fate of environmental pollutants in soils, surface waters and groundwaters. Studies related to water quality and sources of pollution by environmental pollutants as well as reaction kinetics and modeling are reviewed in detail. Also included in the coverage of the present review is research on pollutants such as nutrients, xenobiotics, pathogens, metals, biomakers, and radionuclides, as well as studies related to sewage sludge disposal and mine tailing. NUTRIENTS Nitrate and NitrogenEffects of changes in agricultural management practices during the past century on nitrogen (N) contents in midwestern soils were studied by Dinnes et al. (2002).Types of research and management practices needed to reduce the potential for nonpoint nitrate (NO 3 ) leaching into water were also identified. Strategies for reducing NO 3 loss through drainage include improved timing of N application at appropriate rates, using soil tests and plant monitoring, diversifying crop rotations, using cover crops, reducing tillage, optimizing N application techniques, and using Literature Review 2003 underestimate large nitrate fluxes. It was concluded that although the (Net Anthropogenic Nitrogen Inputs) NANI approach does not address several processes that influence the N cycle, it appears to focus on the terms that can be estimated with reasonable certainty and that are correlated with riverine N flux. Paramasivam et al. (2002) evaluated the measured concentrations of NO 3 -N and Brat various depths with those predicted by the Leaching Estimation and Chemistry Model (LEACHM).Four application rates of N (28, 56, 84, and 112 kg N ha -1 ), and 80 kg Brha -1 to a sandy Entisol with 25-yr-old citrus trees were performed. The LEACHM data showed that 21 to 36% of applied fertilizer N leached below the root zone, while tree uptake accounted for 40 to 53%.Analyses of trends in flow, sediment, phosphorus and nitrogen were performed for the Maumee and Sandusky Rivers and for two tributaries to the Sandusky River, Rock and Honey Creeks, using daily average concentrations covering the period 1975-1995. Flow increased at three of the four stations. Total suspended solids decreased and ranged from 18 to 53% over the 21-year period.Soluble reactive phosphorus decreased by 72 to 88%, whereas total phosphorus decreased by 29 to 58% over the 21-year period. Nitrate showed no significant trend in the larger basins, and significant trends in opposite directions in the two smaller watersheds. Total Kjeldahl nitrogen decreased significantly at all stations; decreases ranged from 14 to 57% over the 21-year period. Comparisons using nonparametric, nonlinear trend fits (LOWESS) suggested that changes in fertilizer and manure application rates were the most important cause of trends in phosphorus and total Kjeldahl nitrogen, point sources were insufficient to account for the phosphorus trends (Richards and Baker, 2002). 5 Clark et al. (2002) tried to figure out which agricultural activities in th...

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Section: Xenobiotics Atrazinementioning

confidence: 99%

Fate of Environmental Pollutants

Darnault¹,

Canbulat²,

Canbulat³

et al. 2003

Water Environment Research

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“…Soil-borne disease and pests are becoming a significant issue in vegetable production worldwide [1]. In the vegetable production system, chemical fumigants have been used to control soil-borne disease and pests for a long time [2].…”

Section: Introductionmentioning

confidence: 99%

Method Validation and Dissipation Behaviour of Dimethyl Disulphide (DMDS) in Cucumber and Soil by Gas Chromatography-Tandem Mass Spectrometry

Kaium

Cao

Liu

et al. 2019

IJERPH

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In this study, a useful analytical method was developed and validated for measuring the residues of dimethyl disulphide (DMDS) in cucumbers and soil by gas chromatography-tandem mass spectrometry (GC-MS/MS). The dissipation dynamics and residual levels of DMDS in cucumber and soil were also studied in Shandong, Jilin, and Hebei provinces by using this method. Dichloromethane was selected and used as the extraction solvent to extract the target pesticide from the soil and cucumber samples. The soil and cucumber samples were cleaned up by the combination of multiwalled carbon nanotubes (MWCNT) and biochar. The average recoveries of the DMDS in cucumbers and soil were in the range of 84–101.5%, with relative standard deviations (RSD) of 0.7–4.9%, when they spiked at 0.05, 0.5, and 5 mg/kg DMDS respectively. The limit of quantification (LOQ) of this method was 0.05 mg/kg. First-order and second-order kinetic equations were used to fit dissipation data. Results show that the half-lives of DMDS in the soil at Shandong, Jilin, and Hebei were 1.63–4.47 days, 1.96–6.49 days, and 1.35–2.51 days, respectively. The final residues of DMDS were less than 0.05 mg/kg in cucumbers and 0.36 mg/kg in the soil. The dissipation rates of DMDS in different soils were different. The method provides a basis for the risk assessment of DMDS in cucumber and soil.

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Estimated Levels of Environmental Contamination and Health Risk Assessment for Herbicides and Insecticides in Surface Water of Ceará, Brazil

Sousa

Duaví

Cavalcante

et al. 2015

Bull Environ Contam Toxicol

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Methodology using solid phase extraction and high performance liquid chromatography (SPE-C18/HPLC-DAD) was applied to pesticide determinations in ten water reservoirs in the semidarid region of northeastern Brazil. The validated method was suitable for determination of herbicides and insecticide in surface water. The recovery efficiency of atrazine, methyl-parathion and simazine was approximately 70%. The method also showed good linearity and selectivity with correlation coefficients (R) greater than 0.99. The limits of detection were below the maximum residue limits (MRLs) established by government agencies. Studied reservoirs showed presence of atrazine at mean levels from 7.0 to 15.0 µg/L. Simazine and methyl parathion were not detected during the period. The atrazine levels measured from this semiarid region are of the same magnitude as those found in regions with moderate to high agricultural activity. According to detected atrazine concentrations, the annual health risk to humans was insignificant. However, the control of herbicides is important to maintain the quality of water in the reservoirs of Ceará, Brazil.

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Monitoring of Pesticide Residues in Different Sources of Drinking Water of Jaipur, India

Cited by 3 publications

References 0 publications

Fate of Environmental Pollutants

Fate of Environmental Pollutants

Method Validation and Dissipation Behaviour of Dimethyl Disulphide (DMDS) in Cucumber and Soil by Gas Chromatography-Tandem Mass Spectrometry

Estimated Levels of Environmental Contamination and Health Risk Assessment for Herbicides and Insecticides in Surface Water of Ceará, Brazil

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