Tag: biofilters

September 12, 2023

Stormwater biofiltration increases coho salmon hatchling survival

A new study finds that the green stormwater practice bioretention filtration can help protect coho salmon hatchlings from the lethal toxicity of runoff exposure. A relatively simple, inexpensive method of filtering urban stormwater runoff dramatically boosted survival of newly hatched coho salmon in an experimental study, according to a press release from Washington State University (WSU). The…
April 21, 2023

Iowa farms using low-tech systems to filter fertilizer-borne nitrates from water

Photo: A worker shovels wood chips in a bioreactor trench in a farm field, on March 28, 2023, near Roland, Iowa. Low-tech systems called bioreactors and streamside buffers help filter nitrates from rainwater before it can reach streams and rivers. (AP Photo/Charlie Neibergall) Nick Helland’s central Iowa farm looks much like every other nearby farm on…
October 25, 2017

3 [more?] Surprising Ways Water Depends on Healthy Forests

Healthy forests are critical to providing clean water. Forests can positively impact the quantity, quality and filtration costs associated with a city’s water, sometimes even reducing the need for costly concrete and steel infrastructure. The world’s major watersheds lost 6 percent of their tree cover on average from 2000-2014. Today, about 31 percent of the…
August 24, 2017

EPA researching freshwater mussels as biofilters in PA, MD and WV

The Environmental Protection Agency today announced a new project to develop innovative methods to improve our understanding of the distribution of freshwater mussels. In a news release, the agency said: EPA will partner with the West Virginia Department of Natural Resources, the Maryland Department of Natural Resources, and the Pennsylvania Department of Environmental Protection in…