microorganism

Dead fish in San Francisco area blamed on toxic red tide

Dead fish in San Francisco area blamed on toxic red tide

“We normally have algae blooms during the summertime. But what’s unusual about this one is how large it is and the fact that there are fish kills,” White said. Most algae blooms end after a week or so. But a triple-digit heat wave forecast for the holiday weekend may help the Bay Area's grow even more, White said. She said that reports of dead fish started coming in last week.

Road Salt Pollution Levels Deemed Safe in U.S. and Canada May Not Protect Freshwater Ecosystems Enough

Road Salt Pollution Levels Deemed Safe in U.S. and Canada May Not Protect Freshwater Ecosystems Enough

Using salt to clear icy roads may be an effective winter safety measure, but excess salty meltwater can wreak havoc on freshwater ecosystems and drinking water resources. In a new study, researchers show current water quality guidelines in North America and Europe are not enough to prevent dangerous levels of salinization. The findings were published last month in the Proceedings of the National Academy of Sciences.