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a.r Pollution in Ma.or Chinese Cities: Some Progress, But Much More to Do

Journa. of Environmenta. Protection 2016年第13期7卷 2081-2094页

作者： Dorrit H. Lowsen george a. conway U.S. Depa.tment of Sta.e Beijing China Division of Globa. Hea.th Protection Center for Global Health US Centers for Disease Control and Prevention Atlanta GA USA

Ba.kground: a.bient (outdoor) a.r pollution ha. been implica.ed a. a.ma.or ca.se of a.ute ca.diova.cula. a.d pulmona.y illnesses a.d increa.ed risk for a.ute a.d chronic effects a.ter chronic exposures, including morta.ity a.d morbidity. In 2008, due to persistent hea.th concerns a.out its workforce a.d their dependents, the US Mission in China.bega. monitoring a.r qua.ity a. the US Emba.sy in Beijing. Subsequently, monitoring sta.ions were a.so esta.lished a. US consula.es a. Sha.gha. (2011), Gua.gzhou (2011), Chengdu (2012), a.d Shenya.g (2013). Objectives: To determine whether there ha.e been defina.le trends in a.r qua.ity in these five Chinese cities. Methods: a.r monitoring results from ea.h loca.e for a.cumula.ed PM2.5 pa.ticula.e ma.ter were ca.cula.ed hourly. a.cumula.ed da.a.were orga.ized, culled using a.sta.da.dized set of heuristics, a.d a.a.yzed for trends. Results: China.s ca.ita. city, Beijing, experienced decrea.ed PM2.5 from 2013 through 2015, but no significa.t long-term downwa.d trend from 2008 through 2015. Sha.gha. ha. not shown a.y defina.le a.r qua.ity trend since 2012. Chengdu experienced some improvement in a.r qua.ity since 2013, but none discernible from 2012 through 2015. Gua.gzhou ha. genera.ly better a.r qua.ity, a.d a.downwa.d trend since 2012. Shenya.g experienced increa.ingly severe a.r pollution from 2013 through 2015. Conclusion: There a.pea. to ha.e been recent ta.gible, though modest, improvements in a.r qua.ity in three la.ge Chinese cities: Beijing, Chengdu, a.d Gua.gzhou, but no a.pa.ent progress in Sha.gha., a.d a.worrisome decline in a.r qua.ity observed in Shenya.g. Despite recent progress, there is a.long wa. to go before even the cities which show improvement rea.h Chinese sta.da.ds.

关键词： Environmenta. Monitoring a.r Pollution/a.r Q a.bient a.r Qua.ity China PM2.5

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Occupa.iona. Ca.bon Monoxide Poisoning a.socia.ed with Diesel Motor Opera.ion in a. a.r-ra.d Shelter in June 2015, Jina. City, China.a. Epidemiologica. Investiga.ion

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Biomedica. a.d Environmenta. Sciences 2017年第10期30卷 777-781页

作者： CUI Lia.g Lia.g ZHOU Jing Wen GENG Xing Yi LI Xin Wei LIU Zhong george a.conway ZHa.G Ji Jina. Municipa. Center for Disea.e Control a.d Prevention Jinan 250021ShandongChina Deschutes County Hea.th Services Depa.tment Bend OR 97703USA

Ca.bon monoxide （CO） is a. odorless, colorless ga. produced by incomplete combustion of ca.bonba.ed compounds. Exposure to CO ca. ca.se va.ious a.verse hea.th effects ra.ging from hea.a.he a.d fa.igue to coma.a.d dea.h. Thousa.ds of illnesses a.d dea.hs ha.e been documented through CO poisoning surveilla.ce systems a.d a.cident investiga.ions ea.h yea..

关键词： CO a.S Occupa.iona. Ca.bon Monoxide Poisoning a.socia.ed with Diesel Motor Opera.ion in a. a.r-ra.d Shelter in June 2015,Jina. City,China a. Epidemiologica. Investiga.ion

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