[elevenoh]

"Rocky Mountain National Park, which had the greatest amount of microplastics among the national parks and wilderness areas in the study"

Surprised to see Colorado so affected.

[sojournerc]

That is surprising, especially considering that it's on the continental divide and has mostly headwaters.

I live a bit south of there in the mountains, also close to the divide. A lot of our precip, especially in winter, is moisture carried by the jet stream from the north pacific that gets caught on the mountains. Could be the source, but that's a wild guess.