It’s raining plastic in Colorado

Greg Wetherbee, a researcher at U.S. Geological Survey researcher had collected rain samples from eight sites along Colorado's Front Range to study changes in the chemical composition of rain. Six of the sites are in the urban Boulder-to-Denver corridor. The other two are located in the mountains at higher elevation.

In 90 percent of the samples Wetherbee found a rainbow wheel of plastics, mostly fibers and mostly colored blue. Those could have been shed like crumbs from synthetic clothing. But he also found other shapes, like beads and shards. 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.

EcoWatch, May 2019

 

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