07/24/2020
Why mag chloride you ask? 🤔Magnesium chloride is often used as a dust control agent since it is hygroscopic and deliquescent — it has the ability to absorb moisture from the humid air. This absorbed moisture helps limit dust by keeping the surface of the road damp enough to hold the dust particles down and reduces blow-off as fugitive dust.
A primary reason why magnesium chloride is used in relatively high quantities in the Western United States is because the source is geographically local. The salty waters of the Great Salt Lake of Utah is a major source of magnesium chloride.