A new study has found that the type of salt used to de-ice roads in winter can have a significant impact on the health of plants. The study, conducted by researchers at the University of Guelph in Ontario, Canada, found that sodium chloride, the most commonly used de-icing salt, can be harmful to plants, while calcium chloride and magnesium chloride are less harmful.
The researchers conducted a series of experiments to test the effects of different de-icing salts on plants. They found that sodium chloride caused the leaves of plants to turn brown and wilt, while calcium chloride and magnesium chloride did not. They also found that sodium chloride reduced the growth of plants, while calcium chloride and magnesium chloride did not.
The researchers believe that the harmful effects of sodium chloride are due to its high concentration of sodium ions. Sodium ions can build up in the soil and damage the roots of plants. Calcium chloride and magnesium chloride, on the other hand, contain lower concentrations of sodium ions and are therefore less harmful to plants.
The study's findings suggest that municipalities should consider using calcium chloride or magnesium chloride instead of sodium chloride to de-ice roads in winter. This would help to protect plants from damage and would also reduce the amount of sodium in the environment.
Other De-icing Options
In addition to calcium chloride and magnesium chloride, there are a number of other de-icing options that are less harmful to plants. These include:
* Sand: Sand can be used to improve traction on icy roads and sidewalks. However, it can also damage plants if it is not removed after the ice has melted.
* Ice melt: Ice melt products are typically made from a combination of chemicals, including calcium chloride, magnesium chloride, and potassium chloride. These products are less harmful to plants than sodium chloride, but they can still damage plants if they are used in too high of a concentration.
* Agricultural byproducts: Agricultural byproducts, such as beet juice and molasses, can be used to de-ice roads and sidewalks. These products are less harmful to plants than sodium chloride, but they can also be more expensive.
Conclusion
The type of salt used to de-ice roads in winter can have a significant impact on the health of plants. Sodium chloride, the most commonly used de-icing salt, can be harmful to plants, while calcium chloride and magnesium chloride are less harmful. Municipalities should consider using calcium chloride or magnesium chloride instead of sodium chloride to de-ice roads in winter. This would help to protect plants from damage and would also reduce the amount of sodium in the environment.
