Fire and Water: Assessing Drinking Water Contamination After a Major Wildfire.
Fire and Water: Assessing Drinking Water Contamination After a Major Wildfire.
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火与水：重大野火后评估饮用水污染。
DOI：
10.1021/acsestwater.1c00129
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发表时间：
2021-08-13
期刊：
影响因子：
--
通讯作者：
Reynolds P
中科院分区：
文献类型：
--
作者：
Solomon GM;Hurley S;Carpenter C;Young TM;English P;Reynolds P
我们调查了受加州2018年营火影响的饮用水系统中挥发性有机化合物（VOC）污染的模式。我们进行了空间分析超过5000个水样收集了17个月的时间内，由当地的自来水公司，采样自来水中的挥发性有机化合物约10%（N = 136）的常设家庭，并进行了额外的非目标化学分析的10个样本。苯污染存在于29%的服务连接到被摧毁的结构和2%的服务连接到站立的家庭。一个空间图案出现了。火灾发生后11个月，站立式住宅中的自来水在1%的样本中含有低浓度的苯，但二氯甲烷在19%的样本中存在，其中包括几个高于监管限制的样本。二氯甲烷含量升高与水表到水龙头的距离更远、停滞时间更长以及服务连接处存在结构破坏有关;它与某些三卤甲烷呈负相关。非目标性分析在2/10的家庭中发现了水中的多种燃烧副产物。我们的研究结果支持的假设，热解和烟雾入侵减压苯污染。需要进一步的研究来验证二氯甲烷可能是由滞留在镀锌铁管中的消毒副产物脱卤产生的假设。野火破坏地区的饮用水系统可能受到苯和其他挥发性有机化合物的污染，需要预防和快速反应，以保护返回居民的健康。
We investigated patterns of volatile organic compound (VOC) contamination in drinking water systems affected by the California 2018 Camp Fire. We performed spatial analysis of over 5000 water samples collected over a 17 month period by a local water utility, sampled tap water for VOCs in approximately 10% (N = 136) of standing homes, and conducted additional nontargeted chemical analysis of 10 samples. Benzene contamination was present in 29% of service connections to destroyed structures and 2% of service connections to standing homes. A spatial pattern was apparent. Tap water in standing homes 11 months after the fire contained low concentrations of benzene in 1% of samples, but methylene chloride was present in 19% of samples, including several above regulatory limits. Elevated methylene chloride was associated with greater distance from the water meter to the tap, longer stagnation time, and the presence of a destroyed structure on the service connection; it was inversely associated with certain trihalomethanes. Nontargeted analysis identified multiple combustion byproducts in the water at 2/10 homes. Our findings support the hypothesis that pyrolysis and smoke intrusion from depressurization contributed to the benzene contamination. Further research is needed to test the hypothesis that methylene chloride may be generated from the dehalogenation of disinfection byproducts stagnating in galvanized iron pipes. Drinking water systems in wildfire-damaged areas may be contaminated with benzene and other volatile organic compounds, requiring prevention and rapid response to protect the health of returning residents.
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影响因子：
4.4
作者：
ROWLINGSON, BS;DIGGLE, PJ
通讯作者：
DIGGLE, PJ
DOI：
10.1021/acsestwater.0c00073
发表时间：
2021-02-12
期刊：
ACS ES&T WATER
影响因子：
--
作者：
Schulze, Stefanie S.;Fischer, Erica C.
通讯作者：
Fischer, Erica C.
影响因子：
8.8
作者：
Dauchy, Xavier;Boiteux, Virginie;Munoz, Jean-Francois
通讯作者：
Munoz, Jean-Francois
DOI：
10.1002/aws2.1183
发表时间：
2020-07-01
期刊：
AWWA WATER SCIENCE
影响因子：
--
作者：
Proctor, Caitlin R.;Lee, Juneseok;Whelton, Andrew J.
通讯作者：
Whelton, Andrew J.
影响因子：
4.6
作者：
Chong, Ngee Sing;Abdulramoni, Saidi;Brown, Heather
通讯作者：
Brown, Heather