greasemonkeymann
Well-Known Member
depending on where you are it may be almost null anywaysI don't dispute your claim that rain picks up some nitrogen, and other things, on the way down. Just curious what the actual levels are. Presumably very tiny. When I test rainwater in my rain gauge, I usually get very close to 0 if not 0. When I test from my rain collection, I may be a few points higher, presumably from shit on my roofs or in my gutters.
I do emission diagnostics, and acid rain is caused by sulfur dioxide and NOx, both come from your cars (NOx), and (SO2)factories
the sulfur dioxide has been dramatically decreased in the U.S., and NOx is all relative to your air quality
for example, china would have some serious acid rain, conversely Washington, Oregon, etc won't
all predicated on air quality, and often times the amount of trees you have around..
In some areas though, it's been recorded as low as 2.7...
that's nearly as acidic as some forms of sulfuric acid..
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