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In article
, JG wrote: Once again I'll stick with UCLA scientists Scientists-for-hire are a dime a dozen. Sometimes literally. vs. GA shills, but thanks for playing. "The study, released Wednesday, shows that ultrafine particle emissions were 10 times higher than normal Define "normal". Compare it with levels for drivers stuck in daily commute traffic in the L.A. basin. about 300 feet downwind of the runway's east end, where takeoffs generally start. The levels were 2.5 times higher than normal at a distance of about 2,000 feet. A tiny fraction of the width of a human hair, ultrafine particles can travel deep into the lungs, penetrate tissue and even travel to the brain. Studies show that elevated exposure to the particles presents a health risk for children, older adults, and people with respiratory and cardiovascular diseases." The which has been known for the better part of 60 years. Emissions from GA aircraft are neither something new, nor a significant fraction of total manmade particulate emissions, not even in the L.A. area. Once again, how about those commute hours? Mr. Rubin can go on at length, but that's his job; his employers should expect no less. |
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