Air Pollution Health Risks were Seriously Underestimated空氣污染的健康風險被嚴重低估
Researchers report, based on a 20 years study of residents of Los Angeles, the contribution of particulate matter to chronic health problems may be as much as two to three times greater than current estimates.研究報告的基礎上， 20年的研究居民的洛杉磯，貢獻顆粒物，以慢性健康問題的可能高達兩至三倍大於目前的估計。
Michael Jerrett of the University of Southern California, Los Angeles and his colleagues analyzed two decades of data collected from nearly 23,000 residents of 260 Los Angeles neighborhoods.邁克爾jerrett的南加州大學，洛杉磯和他的同事分析了20年來收集的數據，從近2.3萬居民， 260洛杉磯街道。 They found that as the number of fine particles less than 2.5 microns in diameter increased, so did the risk of dying.他們發現，由於人數細顆粒小於2.5微米的直徑增加，所以沒有死亡的風險。
Each jump of 10 micrograms per cubic meter corresponded to a 11 to 17 percent increase in the risk of dying from any cause.每個跳轉10微克每立方米相當於一個11至17 ％的增長，死亡風險的任何因由。
“By looking at the effects of pollution within communities, not only did we observe pollution’s influence on overall mortality, but we saw specific links between particulate matter and death from ischemic heart disease, such as heart attack, as well as lung cancers” Jerrett says. “看的影響，污染社區內，我們不僅遵守污染的影響，總體死亡率，但我們看到具體環節之間的顆粒物和死亡，從缺血性心髒病，如心髒病發作，以及肺癌” jerrett說。
The team’s findings are published in the November issue of the journal Epidemiology.小組的研究成果發表在11月期日刊流行病學。
In the same issue of the journal, a group of researchers from the Keck School of Medicine of the University of Southern California reports that living close to the freeway increases a child’s risk of developing asthma.在同一問題上的雜誌，一組研究人員從keck醫學院的南加州大學的報告說，生活接近高速公路增加兒童的風險，發展中國家的哮喘。
Tracking the respiratory health of 208 children in 10 cities the scientists, lead by study author W. James Gauderman, determined that youngsters who lived closer to highways were more likely to develop asthma.跟踪呼吸系統健康208兒童在10個城市的科學家，帶頭研究，作者詹姆斯瓦特gauderman ，確定誰青少年生活更緊密的公路更容易患哮喘。
Source:資料來源： Scientific American科學美國人
Filed under提起下 Health健康 , ， Pollution污染 | |
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