APEC期间京津冀区域大气污染物消减变化分析

发布时间：2018-01-31 21:59

本文关键词： APEC 京津冀区域大气污染物　出处：《干旱区地理》2016年06期 　论文类型：期刊论文

【摘要】：为了解APEC期间京津冀区域大气污染状况,评估污染物减排措施对区域空气质量的影响,利用北京、天津、石家庄2014年10月24日~2014年11月22日大气污染物浓度的数据,对不同时段的污染物浓度水平和日变化特征进行比较分析。结果表明:APEC前10 d北京PM_(2.5)、PM_(10)、SO_2、NO_2、O_3浓度均值为114.7、149.4、9.5、68.5和24.8μg·m~(-3),天津为115.4、164.1、19.0、61.2和18.0μg·m~(-3),石家庄为154.8、269.8、49.3、64.2和27.28μg·m~(-3),北京、天津和石家庄CO均值分别为1.33、1.36和1.78 mg·m~(-3)。对比APEC前,APEC管控期间北京PM_(2.5)、PM_(10)、SO_2、NO_2、CO和O_3分别下降了59.4%、51.8%、14.7%、34.5%、29.3%和-29.8%,天津下降了35.4%、31.6%、-48.4%、12.6%、5.1%和-73.9%,石家庄下降了59.9%、60.0%、21.9%、27.1%、48.3%和4.4%,整体而言,大气污染物下降显著。APEC后,随着大气污染物管控措施的取消,京津冀地区大气污染反弹上升。除O_3以外,不同时段大气污染物浓度在APEC期间的日变化均小于APEC前后,这些结果表明京津冀地区污染源的联合控制取得了明显效果。
[Abstract]:In order to understand the APEC during the Beijing Tianjin Hebei regional air pollution, impact assessment of pollutant emission reduction measures on regional air quality by Beijing, Tianjin, Shijiazhuang, October 24, 2014 ~2014 year in November 22nd the air pollutant concentration data for different periods of time, pollutant concentration levels and daily variation were analyzed. The results showed that APEC 10 d (2.5 PM_ in Beijing), PM_ (10), SO_2, NO_2, O_3 average concentration of 114.7149.4,9.5,68.5 and 24.8 g m~ (-3), Tianjin 115.4164.1,19.0,61.2 and 18 g m~ (-3), Shijiazhuang 154.8269.8,49.3,64.2 and 27.28 g m~ (-3), Beijing, Tianjin and Shijiazhuang, the mean CO was 1.33,1.36 and 1.78 respectively. Mg m~ (-3). Compared with APEC, APEC control during Beijing PM_ (2.5), PM_ (10), SO_2, NO_2, CO and O_3 were decreased by 59.4%, 51.8%, 14.7%, 34.5%, 29.3% and -29.8%, Tianjin fell 35.4%, 31.6%, -48.4%, 12.6%, 5.1% and -73.9%, Shijiazhuang dropped 59.9%, 60%, 21.9%, 27.1%, 48.3% and 4.4%, overall, atmospheric pollutants decreased significantly after.APEC, with the cancellation of air pollution control measures, the rebound of air pollution in Beijing Tianjin Hebei region increased. Except O_3, the changes in APEC during different periods of air pollutant concentrations were less than APEC before, these results suggest that the joint control of pollution of the Beijing Tianjin Hebei region and achieved remarkable results.

【作者单位】：南京信息工程大学中国气象局气溶胶与云降水重点开放实验室;南京信息工程大学大气物理学院;南京信息工程大学环境科学与工程学院;
【基金】：国家自然科学基金面上项目(41475108)
【分类号】：X51
【正文快照】： 由于大气本身具有自身的净化作用,通常情况下低浓度的污染物是不会造成大气污染的,只有当大气中污染物浓度超过大气环境所能够承受的范围时才会导致大气污染[1]。近年来,随着我国经济的快速增长,能源的不断消耗,大气中累积的污染物已经超出了环境容量,由此所带来的污染事件频

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