Journal of Ecology and Rural Environment ›› 2019, Vol. 35 ›› Issue (11): 1490-1496.doi: 10.19741/j.issn.1673-4831.2018.0855

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Risk Assessment and Pollution Level of Haloacetic Acid in Drinking Water in Shihezi City

CAI Jing1, TONG Yan-bin1, LU Jian-jiang1, MA Wu-wei1, CHANG Qi-gang1,2   

  1. 1. School of Chemistry and Chemical Engineering, Shihezi University/Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Production and Construction Corps, Shihezi 832000, China;
    2. Advanced Engineering and Environmental Services Inc., Grand Forks ND58201, USA
  • Received:2018-12-21 Published:2019-11-19

Abstract: This study aimed to evaluate the potential hazard of haloacetic acid in drinking water of Shihezi City to human health. From July 2017 to June 2018, the raw water, finish water, and pipe network water of a water plant in Shihezi City were sampled. GC-μECD detection and analysis were used to measure the concentration of haloacetic acid. Changes in the concentration of haloacetic acid in different processes and season effluents were analyzed. The health risks of drinking water exposure were also evaluated. Results show that the average concentrations of monochloroacetic acid, dichloroacetic acid, monobromoacetic acid, dibromoacetic acid, tribromoacetic acid, bromodichloroacetic acid, chlorodibromochloroacetic acid, and bromochloroacetic acid in the finish water of a water plant in Shihezi City were ND, 0.21, 0.45, 5.90, 2.00, 1.10, 4.50, and 1.50 μg·L-1, respectively. The concentrations of DCAA did not exceed the requirement of GB 5749-2006. HAAs were relatively high in summer, temperature was positively correlated with HAAs, and pH was negatively correlated with HAA concentration. The concentration of HAAs in drinking water in Shihezi does not cause potential harm to human health.

Key words: haloacetic acid, monochloroacetic acid, dichloroacetic acid, health risk

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