3 ms·
"3-10 % of annual mean surface concentration over Western USA" of a single pollutant is quite a different thing from "20 % of LA smog". By several orders of mag
by ptaipale 10y ago
"3-10 % of annual mean surface concentration over Western USA" of a single pollutant is quite a different thing from "20 % of LA smog". By several orders of magnitude.
Yes, some pollutants are measurable over Western USA, at least in areas where there are no local pollutant sources.