‘It’s raining plastic’: Researchers find microscopic fibers in Colorado rain samples
U.S. Geological Survey researcher Greg Wetherbee collected rain samples from eight sites along Colorado’s Front Range. … In 90 percent of the samples Wetherbee found a rainbow wheel of plastics, mostly fibers and mostly colored blue. … The plastics were tiny, needing magnification of 20 to 40 times to be visible and they were not dense enough to be weighed. More fibers were found in urban sites, but plastics were also spotted in samples from a site at elevation 10,300 feet in Rocky Mountain National Park.