唐山工业新区冬季采暖期大气污染变化特征研究  

Variation of Air Pollution in New Tangshan Industrial Area During Winter Heating Period

作　　者：周瑞[1,2] 辛金元[2] 邢立亭[1] 王晓元[2] 封孝信[3] 吉东生[2] 王跃思[2] 

机构地区：[1]济南大学资源与环境学院,济南250002 [2]中国科学院大气物理研究所大气边界层物理与大气化学国家重点实验室,北京100029 [3]河北理工大学材料学院,唐山063009

出　　处：《环境科学》2011年第7期1874-1880,共7页Environmental Science

基　　金：中国科学院知识创新工程重要方向项目(KZCX2-YW-Q02-03);国家高技术研究发展计划(863)项目(2006AA06A301);北京市科技计划公益应用类项目(D09040903670902)

摘　　要：为研究唐山工业新区采暖期大气污染变化状况,2009～2010年冬季唐山工业新区的唐山市、迁安市和曹妃甸3个地区观测研究表明,唐山工业新区冬季采暖期间大气污染严重,NO、NO2、SO2、CO、PM2.5和PM10区域平均日均值分别达到(26±28)、(52±27)、(72±53)、(3 500±3 600)、(82±65)和(164±121)μg.m-3;NO和SO2平均浓度采暖期是采暖前后的2.5倍,NO2和PM10增长30%,CO和PM10日均值超标率(国家二级标准)分别为27%和40%,PM2.5日均值超标率(WHO IT1标准)为38%.所测污染物统计日变化为双峰型,峰值分别出现在08:00和18:00左右,而CO呈现早晨08:00单峰型,夜间累积增加;在早交通高峰和采暖高峰的双重影响下,NO、SO2和CO早高峰突出,日均峰值分别达到50、90和5 100μg.m-3,NO2、PM2.5和PM10峰值对称且相对平缓,最高值分别为56、105和202μg.m-3.后向轨迹聚类统计表明仅在偏北气流作用下及冷空气过境时新区大气污染物才能清除,而在偏南、偏东气流下极易造成污染积累或对京津地区的输送.To illuminate the air pollution situation of the new Tangshan industrial area in the heating period,the observation of atmospheric pollutants was conducted in Tangshan City,Qianan City and Caofeidian Town from Oct.2009 to Apr.2010.The result showed that air pollution was serious in the area in winter.The regional mean concentration of NO,NO2,SO2,CO,PM2.5 and PM10 reached（26±28）,（52±27）,（72±53）,（3 500±3 600）,（82±65）,（164±121）μg·m^-3 in the heating period,respectively.The concentration of NO and SO2 was 2.5 times in the heating period more than in the non-heating period.The concentration of NO2 and PM10 increased by ~30%.The rates that CO and PM10 exceeded the National Ambient Air Quality StandardⅡ were 27% and 40%;and the rate that PM2.5 exceeded the WHO IT1 Standard was 38%.The typical diurnal variations of NO,NO2,SO2,PM2.5 and PM10 were similar with peaking at 08：00 and 18：00,but the diurnal variation of CO was single peak at 08：00 with accumulating in evening.The peaks of NO,CO and SO2 were very high in morning because of the rush hours and the heating,which were 50,90,and 5 100μg·m^-3, respectively.The peaks of NO2,PM2.5and PM10 were relatively gentle,which were 56,105,and 202μg·m^-3,respectively.The cluster analysis of backward trajectories showed only the northerwinds,the cold airs can wash away the air pollution,while the southerwinds and easternwinds can easily accumulate the pollutants or transport the pollutants to the Beijing-Tianjin region.

关 键 词：唐山工业新区 采暖期 大气污染 后向轨迹聚类 

分 类 号：X51[环境科学与工程—环境工程]