P2 for the Snowbound

February 16th, 2007 by

It’s been an interesting week here in central Illinois. A full-fledged blizzard (how often to you see a “Blizzard Warning” in the corner of your TV screen?) dumped mounds of snow on the Champaign-Urbana area, resulting in a rare closing of the entire University of Illinois campus (for two straight days). Now, as those of us at WMRC headquarters dig ourselves out, it’s worth considering how our efforts to keep our streets and windshields clean affect the environment.

As snow melts, road salts runoff from streets, parking lots and other paved surfaces into storm sewers and eventually into waterways, where they may pose a risk to the aquatic environment. Road salts can also negatively impact vegetation and wildlife while still on the land, and can contribute to corrosion of automobiles and infrastructure. Check out Environment Canada’s web page on road salts, their environmental impacts, and what the Canadian government is doing to reduce environmental risks associated with road salts. This page includes case studies related to the management of road salt usage. For more information on road salt use north of the border, see RiverSides “Low-Salt Diet” page, which includes their publication, A Low-Salt Diet for Ontario’s Roads and Rivers. This document provides an overview of environmental and economic impacts of road salt use and discusses best management practices and alternative products.

The U.S. EPA Natural Emergencies–Snow and Ice page provides information on environmental concerns associated with snow and ice management for residences, highways and airports. Included are links to information on road salt application and storage, as well as application practices and research related to deicing chemicals. The Environmental Literacy Council provides a nice overview on the environmental impacts of deicing, considering road salt, alternatives to road salt (e.g. sand, calcium magnesium acetate, etc.) and liquid deicers. A list of recommended resources is provided for further information.

If you’re aware of other resources related to the environmental impacts of snow and ice management, or of information on environmentally friendly road salt alternatives/deicing products, email the information to Joy Scrogum for potential inclusion in the GLRPPR Sector Resources.

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