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G.A. Fumes Poison Neighbors...No Surprise
In article ,
Jim Logajan wrote: JG wrote: "UCLA scientists have found that people who live and work near Santa Monica Airport are exposed to high levels of air pollution -- a significant health concern that has been largely associated with major commercial airports such as LAX. The study appears to be online here (not just the abstract): http://pubs.acs.org/stoken/presspac/...75f?cookieSet= 1 According to it (section 3.3.2) it appears a heavy-duty diesel truck and a jet taking off yield nearly identical particle concentrations. It would seem that the neighbors are in the same situation as if they had moved near a commercial site that had large trucks coming and going and the neigbors got together to shut down the commercial site. For comparison, I did a quick search for comparable studies on ultrafine particle emissions near major roads. I only picked out just one that seemed comparable (also LA area): http://sunscreamer.com/publiccomment...%29%20405Fwy.p df Figure 4(c) (90 m downwind) and 4(f) (300 m upwind) seem to indicate that an exposure factor about 17 times greater than background (comparing the peaks in fig 4(c) and 4(f) and dividing: 1.0E5 / 6.0E3) Comparable to the airport study finding a factor of about 10 for about the same distance from the source. As far as I can tell, the numbers seem to indicate that living near a busy airport is about as dangerous as living near a major highway with respect to ultrafine particle emissions. It seems that demanding that aircraft takeoffs be reduced or shut down entirely at an airport would be equivalent to demanding that the number of vehicles on a major highway be reduced or shut down. The options to neighbors appears to be roughly the same in both cases. Did the study include particulate matter from tire dust that occurs comes from tires rolling down the freeway? That matter would be minimal from an airport but available in quantity from freeways. The whole thing sounds to me like cherry-picked data. -- Remove _'s from email address to talk to me. |
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