Greenhouse gas emissions from vehicles deserve a lot of attention, but particulates from vehicles are also a significant health concern. Tiny soot particles can be inhaled deeply into the lungs. Larger-sized particles can contaminate nearby fields and groundwater, and deliver a significant dose of microplastics to surface waters. Of the microplastic particles polluting surface waters, 30 percent originate from tire wear, according to new research by German and U.S. scientists.
Transport for London is testing out a new dust suppressant that will be sprayed on streets in 15 locations throughout London. The suppressant, which is made up of calcium magnesium acetate, is designed to absorb pollution from the air and “glue” it to the pavement.