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首页> 外文期刊>Atmospheric chemistry and physics >Long-term (2001-2012) concentrations of fine particulate matter (PM2.5) and the impact on human health in Beijing, China
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Long-term (2001-2012) concentrations of fine particulate matter (PM2.5) and the impact on human health in Beijing, China

机译:中国北京长期(2001-2012)细颗粒物(PM2.5)浓度及其对人体健康的影响

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摘要

Beijing, the capital of China, is a densely populated city with poor air quality. The impact of high pollutant concentrations, in particular of aerosol particles, on human health is of major concern. The present study uses aerosol optical depth (AOD) as proxy to estimate long-term PM2.5 and subsequently estimates the premature mortality due to PM2.5. We use the AOD from 2001 to 2012 from the Aerosol Robotic Network (AERONET) site in Beijing and the ground-based PM2.5 observations from the US embassy in Beijing from 2010 to 2011 to establish a relationship between PM2.5 and AOD. By including the atmospheric boundary layer height and relative humidity in the comparative analysis, the correlation (R-2) increases from 0.28 to 0.62. We evaluate 12 years of PM2.5 data for the Beijing central area using an estimated linear relationship with AOD and calculate the yearly premature mortality by different diseases attributable to PM2.5. The estimated average total mortality due to PM2.5 is about 5100 individuals per year for the period 2001-2012 in the Beijing central area, and for the period 2010-2012 the per capita mortality for all ages due to PM2.5 is around 15 per 10 000 person-years, which underscores the urgent need for air pollution abatement.
机译:中国的首都北京是一个人口稠密的城市,空气质量较差。高污染物浓度,特别是气溶胶颗粒浓度,对人体健康的影响是主要关注的问题。本研究使用气溶胶光学深度(AOD)作为代理来估计长期PM2.5,并随后估计由于PM2.5引起的过早死亡。我们使用2001年至2012年北京气溶胶机器人网络(AERONET)站点的AOD值,以及美国驻北京使馆2010年至2011年的地面PM2.5观测值,来建立PM2.5与AOD之间的关系。通过在比较分析中包括大气边界层的高度和相对湿度,相关性(R-2)从0.28增加到0.62。我们使用估计的与AOD的线性关系,评估北京中心地区的PM2.5数据12年,并计算可归因于PM2.5的各种疾病的年度过早死亡。在北京中心地区,2001年至2012年期间,由于PM2.5造成的估计平均总死亡率约为每年5100人,而2010-2012年期间,由于PM2.5引起的所有年龄段的人均死亡率约为15每万人年,这凸显了减少空气污染的迫切需求。

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