Where do these particulates come from? See the chart.
(click it to big it)
From the article...
Three distinct pollutants were measured and these were: fine particulate matter 2.5 micrometers or less in diameter (PM 2.5) and small enough to penetrate lungs when inhaled and which are then able to enter the bloodstream; much more minute specs known as ultrafine particles (UFP); and black carbon (BC), sooty matter emitted into the air from not only diesel engines but from additional sources of combustion as well. Automobile, bicycle, bus, light rail and train were the commute modes evaluated.
So next time you're behind a diesel truck in traffic, take a big whiff. Get those particulates circulating in your blood. Maybe they'll build strong blood vessels like calcium (and strontium 90) builds strong bones.
(If you read the strontium 90 Wikipedia article, they're talking about me in St. Louis.)
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2 comments:
Nice to know where they come from, at least!
I'd seen a few of these, at least proportionally. Personally, I prefer to hold my breath under adverse conditions. I can't speak for others but it works for me.
Very interesting post.
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