DSK wrote:

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Cleanest & healthiest air on the planet?
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Fresh Breezes- Doug King


1974, 500 miles off the west coast of Africa, a few miles north of the
Equator, G.A.T.E. Project, N.O.A.A. ship Oceanographer (OSS-01) - I was
asking one of the scientists aboard about air quality as he was testing
it. He replied something to the effect that where we were it was the
cleanest air on Earth. Then he told me it had something like 150
particles per cubic [inch/centimeter/something or other...] of mostly
dust which I thought sounded like pretty dirty air. He proceeded then to
tell me what NYC had for air particulate content, and I thought "That
sounds like it has to be a solid block!" Quite an eye opener.