Proposed nutrient criteria for water supply lakes and reservoirs
Proposed nutrient criteria for water supply lakes and reservoirs
复制标题
供水湖泊和水库的拟议营养标准
DOI：
10.5942/jawwa.2013.105.0034
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发表时间：
2013
期刊：
影响因子：
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通讯作者：
R. K. Klake
中科院分区：
文献类型：
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作者：
C. W. Callinan;J. P. Hassett;James B. Hyde;Ronald A. Entringer;R. K. Klake
用于饮用水供应的湖泊和水库的营养富集可能会导致一系列广泛的不利影响，从运营问题到某些人类健康相关风险的潜在增加。营养富集可能会加剧消毒副产物、蓝藻毒素和砷的增加，从而加剧人类健康风险。纽约州正在制定用于保护供水湖泊和水库的数字营养标准，方法是建立营养物、藻类丰度、溶解有机碳和三卤甲烷之间的关系，然后针对既定的监管终点来设定适当的数字营养标准阈值。这种方法通过定义水源保护目标，在《安全饮用水法》和《清洁水法》之间搭建了一座急需的桥梁。迄今为止对 21 个系统的调查结果表明，平均叶绿素阈值为 4-6 μg/L 可能会保护饮用水供应湖泊和水库。
Nutrient enrichment of lakes and reservoirs used for a potable water supply can lead to a broad array of adverse effects ranging from operational problems to potential increases in certain human health–related risks. Human health risks that may be exacerbated by nutrient enrichment stem from increases in disinfection by‐products, cyanotoxins, and arsenic. New York state is developing numeric nutrient criteria for the protection of water supply lakes and reservoirs by establishing relationships between nutrients, algal abundance, dissolved organic carbon, and trihalomethanes, and then targeting established regulatory endpoints to set appropriate numeric nutrient criteria thresholds. This approach represents a much‐needed bridge between the Safe Drinking Water Act and the Clean Water Act by defining source water protection goals. Findings to date from the investigation of 21 systems indicate that a mean chlorophyll a threshold of 4–6 μg/L would likely be protective of potable water supply lakes and reservoirs.