Pesticides Found In Snow In U.S. Mountain Ranges

Snow in high-elevation mountains in our national parks are contaminated with pesticides, scientific studies show, including four pesticides banned in the United States. The reports indicate the samplings may be influenced by atmospheric conditions throughout the world. Dan Jaffe, an atmospheric chemist at the University of Washington states that the probability that "these snows may be the cleanest anywhere in the U.S., so the exposure in we receive in urban areas is probably higher."