segments of the river have been finding it difficult to meet the drinking water standard for nitrates.
一些河段已经很难达到饮用水的硝酸盐含量标準。
it was found out that the source region of the swan lake can not meet the drinking water standard by investigation and monitoring about current situation of water environment.
通过对天鹅湖水环境质量现状的调查、监测,天鹅湖供水水源地已不能达到饮用水标準。
very low level that did not exceed the drinking water standard but they had such a brouhaha that they almost shut this lab down because of the public outcry demanding that it be shut down.