The results of a new study prove that the United State’s decision to remove lead from gasoline has improved environmental conditions in the Columbia Gorge, one of the West’s most polluted regions.
During the 1990s scientists found extremely large amounts of lead in the Gorge, but a recent analysis found it has all but disappeared from Gorge lichens, the Oregonian reported today.
The Gorge still faces serious problems, most specifically its air quality. Nitrogen levels are rising as ammonia and other emissions funnel into the gorge from the east, according to air-quality scientists. In other words, the Gorge has too much damn smog.
But at the very least, lead, a once serious threat to the region, appears to be a battle won by the humans