For many of us in Northern climates, snow and ice buildup on roads, driveways, and walkways during the winter is inevitable. There are many options out there for de-icing, but not all of them are safe for the environment. Before you run down to the home store to pick up a bag of de-icer, consider these factors:
The most common de-icing compound is rock salt, or sodium chloride. Rock salt is widely available and effective, but as it dissolves it releases a high amount of chloride into the environment. This chloride pollutes streams, rivers and lakes, kills vegetation, and corrodes metal (such as bridges and cars).
Another de-icing salt is calcium chloride. Calcium chloride is also readily available and effective, working at lower temperatures than rock salt. It still releases high levels of chloride into the environment and can cause skin irritation after using it. Calcium chloride can also break down the chemical composition of concrete driveways and walkways.
Two de-icing salts that are less detrimental to the environment are potassium chloride and magnesium chloride. They are said to release about 40% less chlorides that calcium chloride and sodium chloride, and as a result are less toxic to plants, trees, and waterways.
A greener alternative to salt is calcium magnesium acetate (CMA). CMA is salt-free, has a low toxicity, and is biodegradable.
If you don’t want to use salts or chemicals for de-icing around your home, consider some of these alternatives to help increase traction on the snow and ice:
-Sand
-Natural (Biodegradable) kitty litter
-Bird food
Icy streets and walkways can be dangerous. It’s important to know the impact of the products we use for de-icing, as well as the green alternatives available.
Read more about things you can do to go green and save the environment. Download your FREE copy of 27 Way To Go Green and See Green.
