Trends in ambient levels of DDT and HCH residues in humans and the environment of Delhi, India

Nair, Amit; Pillai, M. K. K.

doi:10.1016/0048-9697(92)90312-g

Cited by 43 publications

(17 citation statements)

References 10 publications

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“…DDE residue presence may reflect the past use of DDT, which has been metabolized in the environment and years later might be incorporated into the body through the diet (Kutz et al 1991). The levels of op DDT and pp DDT were also similar to those reported by other investigators (Ramachandran et al 1984;Nair and Pillai 1992). In human body DDT is first dechlorinated to DDD and is either metabolized to DDA or excreted directly as DDD.…”

Section: Resultssupporting

confidence: 75%

“…a-HCH was found in 5.4% of the samples with mean residue levels of 0.12 mg kg -1 while Ramachandran et al (1984) reported levels upto 3.77 mg kg -1 . In the present study, the lowest frequency occurrence was that of d-HCH (1.8%) with average concentration of 0.03 mg kg -1 , which is also lower than as reported earlier (Nair and Pillai 1992). The decline in levels of a-and d-HCH might be due the imposition of ban on the usage of technical HCH in India since 1997.…”

Section: Resultscontrasting

confidence: 46%

“…The organochlorine pesticide residues from the human fat samples were extracted and purified by as per the method of Nair and Pillai (1992) with modifications. Briefly, five grams of each fat sample were macerated with anhydrous sodium sulfate and Soxhlet extracted with hexane: acetone (1:1) mixture.…”

Section: Methodsmentioning

confidence: 99%

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Occurrence of DDT and HCH Insecticide Residues in Human Biopsy Adipose Tissues in Punjab, India

Aulakh

Bedi

Gill

et al. 2007

Bull Environ Contam Toxicol

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Section: Resultssupporting

confidence: 75%

Section: Resultscontrasting

confidence: 46%

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Occurrence of DDT and HCH Insecticide Residues in Human Biopsy Adipose Tissues in Punjab, India

Aulakh

Bedi

Gill

et al. 2007

Bull Environ Contam Toxicol

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“…These high levels could be attributed to the widespread use of h-HCH in India and the high concentrations found in food. h-HCH (also called technical-grade benzene hexachloride) has been used in India as an insecticide to control locusts and malaria carrying mosquitoes since the late 1940s, being officially banned in 1997 (17)(18)(19). It is the most widely used pesticide in India (20), and it is widely distributed throughout the food chain, especially present in meat and milk (21).…”

Section: Discussionmentioning

confidence: 99%

A Correlation Study of Organochlorine Levels in Serum, Breast Adipose Tissue, and Gluteal Adipose Tissue among Breast Cancer Cases in India

Rusiecki

Matthews

Sturgeon

et al. 2005

Cancer Epidemiology, Biomarkers &Amp; Prevention

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We used data from a breast cancer pilot study carried out in Kerala, India in 1997, for which organochlorine levels were measured in three biological media, blood serum, breast adipose tissue, and gluteal adipose tissue, of 37 fasting breast cancer cases (pretreatment). Our objective was to investigate the relationships between organochlorine concentrations in different biological media. Gas-liquid chromatography determined serum, breast adipose, and gluteal adipose tissue levels of dichlorodiphenyltricholorethane, dichlorodiphenyldichloroethane, B-benzene hexachloride, and polychlorinated biphenyl (PCB) congeners, PCB-153 and PCB-180. Correlation plots were made and Spearman correlation coefficients (r) calculated for breast adipose tissue versus serum, gluteal adipose tissue versus serum, and breast adipose versus gluteal adipose tissue. We also examined paired ratios of all summary statistics. There were strong correlations among serum, breast adipose tissue, and gluteal adipose tissue concentrations for most organochlorines analyzed, one exception being gluteal versus serum for PCB-153. The correlations for all other comparisons ranged from r = 0.65 to 0.94. Serum (ng/g) versus adipose ratios approached 1:1 for most of the organochlorine pesticide comparisons and did not vary by summary statistic. To our knowledge, this is the first study to use three different media from fasting subjects and to comprehensively investigate the relationship between organochlorines measured across the three media for both organochlorine pesticides and PCBs. These data indicate that blood serum reflects the present body burden of a range of organochlorines to the same extent as adipose tissue, and they support the view that serum may be collected in lieu of adipose tissue to obtain similar information. However, such measurements are a combination of both recent exposures and past exposures, which have metabolized slowly and may still persist. Therefore, investigators should use caution when assigning a level as lifetime body burden. (Cancer Epidemiol Biomarkers Prev 2005;14(5):1113 -24)

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“…Pillai in 1986 [39] reported that about 70% of pesticides employed in India are organochlorine insecticides such as DDT and HCH. Nair et al 1992 [40]. studied the levels of DDT and HCH residues in abiotic and biotic components of the environment of Delhi between 1988 to1989 and disclosed low to moderate levels of these insecticides in soil, earthworms, birds, buffalo milk, water, freshwater clams, fish, human fat, human blood and breast milk sample.…”

Section: A Pesticide Pollution In Riversmentioning

confidence: 99%

Impact of Pesticide Usage on Water Resources: Indian Scenario

Rai¹

2017

IJRASET

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The term Pesticide is generally used for agrochemicals which are important for crop protection. They are amongst the primary means required to sustain and improve the agricultural production. Crop production and their protection techniques play a very crucial role to meet the needs of a growing population. A significant part of entire food production is washed out owing to insect pests, plant pathogens, weeds, rodents, birds, nematodes in agricultural fields and when in storage. In last few decades pesticides industry has developed to a large extent and it contributes significantly towards India's agriculture and public health. However, use of pesticides causes both environmental and human health hazards. The toxic effect of a pesticide depends on nature of pesticide, means and period of exposure and its dose. Pesticides move through air, soil, and water, finding their way into living tissues, where they undergo biological modifications. So many cases of pesticide pollution in Indian river stretches, estuaries and drinking water have been reported. Water pollution in India with special reference to pesticides has been discussed in this review.

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Trends in ambient levels of DDT and HCH residues in humans and the environment of Delhi, India

Cited by 43 publications

References 10 publications

Occurrence of DDT and HCH Insecticide Residues in Human Biopsy Adipose Tissues in Punjab, India

Occurrence of DDT and HCH Insecticide Residues in Human Biopsy Adipose Tissues in Punjab, India

A Correlation Study of Organochlorine Levels in Serum, Breast Adipose Tissue, and Gluteal Adipose Tissue among Breast Cancer Cases in India

Impact of Pesticide Usage on Water Resources: Indian Scenario

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