Grantee Research Project Results
2013 Progress Report: Toxicity of Drinking Water Associated with Alternative Distribution System Rehabilitation Strategies
EPA Grant Number: R834867Title: Toxicity of Drinking Water Associated with Alternative Distribution System Rehabilitation Strategies
Investigators: Mariñas, Benito J. , Plewa, Michael J.
Institution: University of Illinois Urbana-Champaign
EPA Project Officer: Page, Angela
Project Period: June 1, 2011 through May 31, 2015
Project Period Covered by this Report: June 1, 2013 through May 31,2014
Project Amount: $599,113
RFA: Advancing Public Health Protection through Water Infrastructure Sustainability (2009) RFA Text | Recipients Lists
Research Category: Drinking Water , Water
Objective:
Investigate the potential impact on public health brought about by emerging alternatives for rehabilitating drinking water distribution systems.
Progress Summary:
We conducted a controlled experiment in which a single source water was disinfected with chlorine or chloramines with and without Br−/I− to measure the toxic effects of these halogens. We disinfected filter effluent from a conventional surface water treatment plant with 2 mg/L of free chlorine or combined chlorine with or without the addition of 500 µg/L Br− and 100 µg/L I− at pH 8-8.5. After 48 h reaction time, we concentrated the disinfected water samples by adsorption over XAD-2/XAD-8 resins. Water disinfected with chlorine was less cytotoxic than water disinfected with chloramine; however, both disinfectants alone generated the same level of genotoxicity in the source water. For both chlorination and chloramination, the addition of Br− and I− increased cytotoxicity and genotoxicity. These data indicate that the halide content of source water substantially affects the cytotoxicity and genotoxicity of finished drinking water and this factor should be considered in decisions involving disinfection practice.
Journal Articles on this Report : 2 Displayed | Download in RIS Format
| Other project views: | All 9 publications | 7 publications in selected types | All 6 journal articles |
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Komaki Y, Marinas BJ, Plewa MJ. Toxicity of drinking water disinfection byproducts: cell cycle alterations induced by the monohaloacetonitriles. Environmental Science & Technology 2014;48(19):11662-11669. |
R834867 (2013) R834867 (Final) |
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Yang Y, Komaki Y, Kimura SY, Hu H-Y, Wagner,ED, Marinas BJ, Plewa MJ. Toxic impact of bromide and iodide on drinking water disinfected with chlorine or chloramines. Environmental Science & Technology 2014;48(20):12362-12369. |
R834867 (2013) |
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Supplemental Keywords:
Disinfection byproducts, XAD, mammalian cell, cytotoxicity, genotoxicity, drinking water, toxicityProgress and Final Reports:
Original AbstractThe perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoints of the principal investigator and may not represent the views and policies of ORD and EPA. Conclusions drawn by the principal investigators have not been reviewed by the Agency.