Planting trees and bushes near busy highways helps clear the air of harmful air pollutants from motor vehicles, new research affirms.
WEDNESDAY, March 20, 2023 —
"But," he added, "I don't want to give anyone the impression that we can solve all of the problems associated with motor vehicle emissions simply by planting trees." When air at sites with natural or ornamental vegetation was compared with that from similar sites without vegetation, the results were clear: Soot levels were 37% lower and ultrafine particles, 7% lower.
"Trees and bushes near roadways don't solve the problem of air pollution caused by motor vehicles, but they can help reduce the severity of the problem," he said in the news release.Vegetation at the roadside pulls pollutants from the air in several ways. For one, it provides a large surface area where small airborne particles can land.
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