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Information Journal Paper

Title

NITRATE, ARSENIC AND SELENIUM CONCENTRATIONS IN THE PECOS VALLEY AQUIFER, WEST TEXAS, USA

Pages

  229-236

Abstract

 NITRATE, ARSENIC, and SELENIUM concentrations in the Pecos Valley Aquifer of west TEXAS were compiled, mapped, and analyzed in the context of local geology and land use. Alluvial deposits of sand, silt, clay, and gravel compose the unconfined aquifer. Ranching and farming are predominant land uses in the rural study area. Data were tabulated from 79 water wells with a median depth of 75 m and mapped with a geographic information system (GIS). The wells were sampled between the years 2003 and 2008. Total dissolved solids (TDS) concentrations in the aquifer were very high, with a median value of 2,687 mg/L. Approximately 18% of observations exceeded the 44.27 mg/L drinking water standard for NITRATE, whereas 6% exceeded the 10mg/L standard for ARSENIC, and only 4% surpassed the 50 mg/L standard for SELENIUM. There was a statistically significant, direct correlation between ARSENIC and SELENIUM, as well as between NITRATE and SELENIUM concentrations. Moreover, ARSENIC and SELENIUM concentrations were significantly higher in shallower wells. Probable sources of GROUNDWATER contamination in the study area include natural (geological) sources and agricultural activity.

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    • Cite

    APA: Copy

    HUDAK, P.F.. (2010). NITRATE, ARSENIC AND SELENIUM CONCENTRATIONS IN THE PECOS VALLEY AQUIFER, WEST TEXAS, USA. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH (IJER), 4(2), 229-236. SID. https://sid.ir/paper/300817/en

    Vancouver: Copy

    HUDAK P.F.. NITRATE, ARSENIC AND SELENIUM CONCENTRATIONS IN THE PECOS VALLEY AQUIFER, WEST TEXAS, USA. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH (IJER)[Internet]. 2010;4(2):229-236. Available from: https://sid.ir/paper/300817/en

    IEEE: Copy

    P.F. HUDAK, “NITRATE, ARSENIC AND SELENIUM CONCENTRATIONS IN THE PECOS VALLEY AQUIFER, WEST TEXAS, USA,” INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH (IJER), vol. 4, no. 2, pp. 229–236, 2010, [Online]. Available: https://sid.ir/paper/300817/en

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