3 ms·
Well, the article makes it sound like they're basing the research on the assumption that the 208Pb comes from Asia simply because it spikes in the spring. I wou
by seandougall 13y ago
Well, the article makes it sound like they're basing the research on the assumption that the 208Pb comes from Asia simply because it spikes in the spring. I would hope they have reason to believe in the specificity of that marker for Asian pollution, rather than actually engaging in such wild speculation, but if they do, the article skips over it.
Also, the non-sequitur about iPhones and iPads at the end is completely random and seemingly pointless.
Also needs "[2010]".
- kaybe 13y agoThe article is wrong. From the abstract: 'We tested whether Pb isotope ratios in airborne particles can be used to directly evaluate the Asian contribution to airborne particles of anthropogenic origin in western North America, using a time series of samples from a pair of sites upwind and downwind of the San Francisco Bay Area. Our results for airborne Pb at these sites indicate a median value of 29% Asian origin, based on mixing relations between distinct regional sample groups.' If it was unfounded, the reviewers would have shot it down.