Articles on Water pollution

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Little Missouri River, North Dakota. Justin Meissen

US rivers are becoming saltier – and it’s not just from treating roads in winter

Recent research shows that US rivers are becoming saltier and more alkaline. Salt pollution threatens drinking water supplies and freshwater ecosystems, but there is no broad system for regulating it.
There are nanometals in your washing machine. Evgeny Atamanenko

Silver nanoparticles in clothing wash out – and may threaten human health and the environment

Many socks, towels and other textiles are treated with silver nanoparticles to kill germs and odors. When the silver washes out, it can pollute waterways. Two chemists propose a way to collect it from wastewater.
Healthy aquatic vegetation in the Chesapeake Bay. Cassie Gurbisz/University of Maryland Center for Environmental Science

Cutting pollution in the Chesapeake Bay has helped underwater grasses rebound

An ambitious plan to cut the flow of nutrients into the Chesapeake Bay has produced historic regrowth of underwater seagrasses. These results offer hope for other polluted water bodies.
“Remember, remember the fifth of November”… Andy Wilkes/Flickr

From fireworks to iodine and IQ: the perchlorate connection

A chemical found in products as diverse as fireworks and food packaging, perchlorate can interfere with thyroid function as well as foetal brain development.
Plastic trash on San Francisco’s Ocean Beach. Kevin Krejci

Bait and switch: Anchovies eat plastic because it smells like prey

A new study shows that anchovies – key food for larger fish – are attracted to plastic trash because it smells like food. This suggests that toxic substances in plastic could move up through food chains.
Six million people in Pennsylvania and neighboring states get their drinking water from the Susquehanna River. Major pollution sources include agriculture, urban development and industry. Nicholas A. Tonelli

Is your drinking water safe? Here’s how you can find out

America's drinking water infrastructure is aging and needs billions of dollars in upgrades. Two extension educators urge consumers to monitor their water and have it tested if they suspect problems.

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