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| Scientists Release Air Quality Data From Gulf Oil Spill
Research published Thursday in the Journal Science finds that data recorded during the massive oil spill last year in the Gulf of Mexico may add to the understanding of pollution in American cities.Nearly a year ago the world watched as almost 5 million barrels of oil spewed into the Gulf of Mexico after the explosion of the Deepwater Horizon oil rig. The enormous oil slick was dotted with fires or controlled burns aimed at removing oil from the open water. Air quality was a concern and the National Oceanic and Atmospheric Administration sent in a specially-equipped Hurricane Hunter aircraft to access the situation. The Lockheed Orion assigned to the mission had air quality and climate data instruments aboard that NOAA atmospheric scientist Joost de Gouw mined for data. "They give a very detailed analysis of the chemical composition of the atmosphere,asics tiger shoes," he says.On the first day of the mission,asics shoes, the aircraft made several wide loops over the oil spill site to measure its extent. De Gouw was part of the ground team and watched remotely via satellite, in real time: "And on every loop when we were downwind from the site we saw these very, very large signals of oil vapors,asics tiger mexico 66, but we only saw it downwind from the spill site." The scientists calculated that about half the oil that surfaced was evaporating within hours or days, says De Gouw. "And what we saw was a very significant formation of organic aerosol from these vapors." Organic aerosols are microscopic particles that remain suspended in the atmosphere and cause air pollution. Aerosols have been linked to asthma,asics tiger shoes sale, heart disease and premature death. They also affect climate by reflecting more sunlight back into space. De Gouw says the mission to analyze Gulf air quality looked a lot like home. "In our cities about half of the aerosol is organic. And we also know that that organic fraction is not directly emitted from our vehicles,asics shoes sale, but it is formed in the atmosphere from organic vapors, we just don’t know which organic vapors are responsible for that very well." Scientists measured aerosols over a broad area and concluded that the heavier,cheap asics shoes, less volatile hydrocarbons in the Gulf of Mexico that didn’t evaporate so quickly might also be an important source of the organic aerosols turning up in the air in American cities and elsewhere. "And what was unique about our oil spill measurements,Asics Mexico 66 Baja," De Gouw says,asics shoes Australia,Scientists Release Air Quality Data From Gulf Oil Spill cheap Mexico 66, "is we could study the chemistry of those compounds separately, because they were all separated on the surface of the Gulf as they evaporated on different time scales." De Gouw says these heavier compounds are not usually measured in conventional air quality monitoring programs, which are designed to capture other contaminants like carbon monoxide, nitrogen dioxide,Asics Gel Kinsei 2, sulfur dioxide and ozone. The study,cheap Mexico 66, reported in the Journal Science, may also shed light on why there are more organic aerosols in polluted air than scientists can explain. Air Jordan Heels have been popularized trendy. The popularity of Jordan heel has been greatly aided by its easy customization. Jordan Heels may be found online and through independent brokers of the footwear.Jordan High Heels is especially for women in fashion and casual wear styles. Of course, these boots are easily available from Nike Inc authorized dealers. To me,asics running shoes, I would like to wear shoes that allow me to be sexy and the best way to do that is to put on a pair of stiletto high heel shoes that I can wear to the night club. Air Jordan 1 High Heels Beige Pink is generally produced in limited quantities. For this reason,tiger shoes outlet, Jordan Heels for Women is now available on our website. See sexy high heels now. These high heels can be perfect to your health low-heeled shoes or no heels. Women wearing high-heeled shoes can be looked as fashion and elegant. |
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