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Reduction in urinary arsenic levels in response to arsenic mitigation efforts in Araihazar, Bangladesh.

Publication ,  Journal Article
Chen, Y; van Geen, A; Graziano, JH; Pfaff, A; Madajewicz, M; Parvez, F; Hussain, AZMI; Slavkovich, V; Islam, T; Ahsan, H
Published in: Environmental health perspectives
June 2007

There is a need to identify and evaluate an effective mitigation program for arsenic exposure from drinking water in Bangladesh.We evaluated the effectiveness of a multifaceted mitigation program to reduce As exposure among 11,746 individuals in a prospective cohort study initiated in 2000 in Araihazar, Bangladesh, by interviewing participants and measuring changes in urinary As levels.The interventions included a) person-to-person reporting of well test results and health education; b) well labeling and village-level health education; and c) installations of 50 deep, low-As community wells in villages with the highest As exposure.Two years after these interventions, 58% of the 6,512 participants with unsafe wells (As >/=50 microg) at baseline had responded by switching to other wells. Well labeling and village-level health education was positively related to switching to safe wells (As < 50 mug/L) among participants with unsafe wells [rate ratio (RR) = 1.84; 95% confidence interval (CI), 1.60-2.11] and inversely related to any well switching among those with safe wells (RR = 0.80; 95% CI, 0.66-0.98). The urinary As level in participants who switched to a well identified as safe (< 50 microg As/L) dropped from an average of 375 microg As/g creatinine to 200 microg As/g creatinine, a 46% reduction toward the average urinary As content of 136 microg As/g creatinine for participants that used safe wells throughout. Urinary As reduction was positively related to educational attainment, body mass index, never-smoking, absence of skin lesions, and time since switching (p for trend < 0.05).Our study shows that testing of wells and informing households of the consequences of As exposure, combined with installation of deep community wells where most needed, can effectively address the continuing public health emergency from arsenic in drinking water in Bangladesh.

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Published In

Environmental health perspectives

DOI

EISSN

1552-9924

ISSN

0091-6765

Publication Date

June 2007

Volume

115

Issue

6

Start / End Page

917 / 923

Related Subject Headings

  • Water Supply
  • Water Pollutants, Chemical
  • Toxicology
  • Middle Aged
  • Male
  • Interviews as Topic
  • Humans
  • Health Education
  • Female
  • Environmental Exposure
 

Citation

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Chen, Y., van Geen, A., Graziano, J. H., Pfaff, A., Madajewicz, M., Parvez, F., … Ahsan, H. (2007). Reduction in urinary arsenic levels in response to arsenic mitigation efforts in Araihazar, Bangladesh. Environmental Health Perspectives, 115(6), 917–923. https://doi.org/10.1289/ehp.9833
Chen, Yu, Alexander van Geen, Joseph H. Graziano, Alexander Pfaff, Malgosia Madajewicz, Faruque Parvez, AZM Iftekhar Hussain, Vesna Slavkovich, Tariqul Islam, and Habibul Ahsan. “Reduction in urinary arsenic levels in response to arsenic mitigation efforts in Araihazar, Bangladesh.Environmental Health Perspectives 115, no. 6 (June 2007): 917–23. https://doi.org/10.1289/ehp.9833.
Chen Y, van Geen A, Graziano JH, Pfaff A, Madajewicz M, Parvez F, et al. Reduction in urinary arsenic levels in response to arsenic mitigation efforts in Araihazar, Bangladesh. Environmental health perspectives. 2007 Jun;115(6):917–23.
Chen, Yu, et al. “Reduction in urinary arsenic levels in response to arsenic mitigation efforts in Araihazar, Bangladesh.Environmental Health Perspectives, vol. 115, no. 6, June 2007, pp. 917–23. Epmc, doi:10.1289/ehp.9833.
Chen Y, van Geen A, Graziano JH, Pfaff A, Madajewicz M, Parvez F, Hussain AZMI, Slavkovich V, Islam T, Ahsan H. Reduction in urinary arsenic levels in response to arsenic mitigation efforts in Araihazar, Bangladesh. Environmental health perspectives. 2007 Jun;115(6):917–923.

Published In

Environmental health perspectives

DOI

EISSN

1552-9924

ISSN

0091-6765

Publication Date

June 2007

Volume

115

Issue

6

Start / End Page

917 / 923

Related Subject Headings

  • Water Supply
  • Water Pollutants, Chemical
  • Toxicology
  • Middle Aged
  • Male
  • Interviews as Topic
  • Humans
  • Health Education
  • Female
  • Environmental Exposure