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The cleanest air on Earth lies in a pocket of sky between Tasmania and Antarctica, scientists say.
A team of researchers at Colorado State University conducted a bioaerosol study of the Southern Ocean from Tasmania to Antarctica — the first of its kind — and drew air samples at the marine boundary level, where the atmosphere meets the ocean surface.
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The cleanest pocket of air on Earth? It's in the Southern Ocean, between Tasmania and Antarctica Back to video
“We were able to use the bacteria in the air over the Southern Ocean (SO) as a diagnostic tool to infer key properties of the lower atmosphere,” microbian ecologist Thomas Hill, from Colorado State University, told Science Alert.
Via modelling and analysis, the team noted that the samples were free of aerosol particles — a sure indicator of human activity, like fossil fuel burning, agriculture and fertilizer production — blown in from other parts of the world. The samples were also split into latitudinal zones, so that the team could observe how the air changed as they moved further south.
https://news.google.com/__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?oc=5
2020-06-04 20:28:22Z
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