Chloride Found at Levels that Can Harm Aquatic Life in Urban Streams of the Northern U.S.–Winter Deicing a Major Source
The USGS report and maps of monitoring sites are available online. Levels of chloride, a component of salt, are elevated in many urban streams and groundwater across the northern U.S., according to a new government study. Chloride levels above the recommended federal criteria set to protect aquatic life were found in more than 40 percent of urban streams tested.? The study was released today by the U.S.
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