957 resultados para Crime, International Environmental Law, Regulation, Transgenic Food


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Description based on: Dec. 1999; title from caption.

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Project no.80.144.

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Title from caption.

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"January 1999."

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"February 1995."

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"EPA-901/9-76-003A-(b)

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"July 9, 1969."

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Reuse of record except for individual research requires license from Congressional Information Service, Inc.

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Thesis (Ph.D.)--University of Washington, 2016-06

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The authors assessed the contribution of food irrigated with arsenic-contaminated water to human exposure to arsenic in Bangladesh. An intervention trial was conducted in a village in the Jessore District of Bangladesh, where irrigation water had been field-tested in March 2000 and was found to contain arsenic with concentrations ranging from 100 to 500 mu g/l. In May 2000, a random sample of 63 households was selected from the village, and I eligible person from each household was recruited to the study and randomized to an intervention or control group. The intervention group received food purchased from a village where irrigation water was found to contain 100 mu g/l arsenic. Pre- and postintervention urine samples were collected for urinary arsenic speciation assays. Preintervention, the mean urinary total arsenic concentrations were 139.25 mu g/l and 129.15 mu g/l for the intervention and control groups, respectively. These concentrations did not change significantly following intervention. Arsenic concentrations in samples of selected raw and cooked foods from the low-contamination area did not contain less arsenic than samples from the high-contamination area. Further studies to investigate the arsenic content of food grown in areas with high and low arsenic contamination of irrigation water are recommended.