RAPID: Inputs of Polycyclic Aromatic Hydrocarbon to Drinking Water Sources from the Yosemite Wildfire

1361678周约塞米蒂山火是加州第三大山火，烧毁了257314英亩（402平方英里）的土地，附近是260万人的主要饮用水源。这场大火燃烧了近10周，并于2013年10月26日100%得到控制。研究小组已经收集了第一批火灾后和降雨前的样本。下一次采样将在雨后进行，尽可能接近最初的径流。其中一个重要的问题是，这场大火是如何影响约塞米蒂国家公园及其周边水库的水质的，以及随后对饮用水质量的影响。燃烧可能会增加《安全饮用水法》规定的化学物质的浓度，即多核芳烃（PAHs）。然而;对我们大多数人来说，关于黑碳、烟灰的潜在形成，以及它对水质或饮用水质量的影响，我们知之甚少，甚至一无所知。另一个未知因素是火灾对森林地面天然有机物质的影响。这种来自“凋落叶”的有机物通常通过雨水输送到溪流、河流和湖泊，并可能在水处理过程中形成消毒副产物。火灾对这种有机物的影响尚不清楚，而且由于周围地区的水是饮用水的来源，因此可能会影响饮用水的质量。通过与加州渔猎局和加州水资源控制委员会的合作，将开发材料供该机构的教育和推广项目使用。

1361678ChowThe Yosemite Rim fire, the third largest fire in California, burned 257,314 acres (402 square miles) adjacent to a major source of drinking water for 2.6 million people. This fire burned for nearly 10 weeks and was reported 100 % contained October 26, 2013. The research team has already collected the first set of samples which are post-fire and pre-rain. The next sampling will be post-rain as close to initial runoff as possible. One of the big questions is how did this fire affect the water quality of the reservoirs in and around Yosemite National Park and what might be the impact subsequently on drinking water quality. The burning will likely increase the concentration of chemicals controlled under the Safe Drinking Water Act, namely polynuclear aromatic hydrocarbons (PAHs). However; little to no information is known on the potential formation of black carbon, soot to most of us, and its impact on water quality or drinking water quality. Another unknown is the impact of the fire on natural organic matter from the forest floor. This organic matter from "leaf litter" is normally transported to streams, rivers and lakes by rain and it may lead to the formation of disinfection by-products during water treatment. The impact of fires on this organic matter is unknown and because the waters in the surrounding area are the source of drinking water it may affect drinking water quality. Through the association of the PIs with California Department of Fish and Game and the CA State Water Resources Control Board material will be developed for use by the Agencies education and outreach programs.