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Researchers turn to vegetables and juices as alternatives to road salt

Researchers turn to vegetables and juices as alternatives to road salt
While road salt is highly effective at de-icing surfaces and very necessary during harsh winters, it places a heavy burden on freshwater ecosystems.
Several studies -dating back to the 1970s- have shown that road de-icing salt has a negative impact on soil, vegetation, wildlife, surface water, groundwater and human health. “We have an unhealthy addiction to road salt,” said Claire Oswald, a hydrologist and associate professor at Ryerson University in Toronto, Ontario.
In the late 1990s, the Canadian government started to look at road salt usage and best management plans. The Canadian Water Quality Guidelines include the maximum thresholds for when chloride becomes harmful to amphibians, algae, aquatic plants, aquatic insects, fish and invertebrates like mussels, she said. ....

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Road Salt: Researchers look at vegetables and juices for alternatives to salt

Kathy Johnson
/ Great Lakes Now, Detroit Public TV
Salt-speckled sidewalks, driveways and highways are synonymous with winter in the Great Lakes region. But while road salt is highly effective at deicing surfaces, the safety that salt provides for humans places a heavy burden on freshwater ecosystems.
“We have an unhealthy addiction to road salt,” said Claire Oswald, a hydrologist and associate professor at Ryerson University in Toronto, Ontario.
Multiple studies dating back to the 1970s have shown that road deicing salt has a negative impact on soil, vegetation, wildlife, surface water, groundwater and human health. A 1984 study conducted by the Michigan Legislative Science Office states road deicing salts, “are contributing to major changes in the Great Lakes ecosystem,” particularly on sensitive environments like wetlands, ponds and streams. Additionally, the legislative study found road salts are contributing to a general degradation of groundwat ....

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