环境监测管理与技术
環境鑑測管理與技術
배경감측관리여기술
THE ADMINISTRATION AND TECHNIQUE OF ENVIRONMENTAL MONITORING
2013年
6期
15-18,23
,共5页
大气颗粒汞%分布特征%细颗粒物%可吸入颗粒物%总悬浮颗粒物%南京市
大氣顆粒汞%分佈特徵%細顆粒物%可吸入顆粒物%總懸浮顆粒物%南京市
대기과립홍%분포특정%세과립물%가흡입과립물%총현부과립물%남경시
Atmospheric particulate mercury%Distribution characteristics%PM2.5%PM10%TSP%Nanjing
采集了南京市2012年冬季4个功能区的PM2.5、PM10、TSP样品,对不同粒径大气颗粒物中的颗粒态汞测试。结果表明,南京冬季大气颗粒物TSP中汞的质量浓度为49.26 pg/m3~257.14 pg/m3,平均质量浓度为161.27 pg/m3;PM10中汞的质量浓度为44.82 pg/m3~228.29 pg/m3,平均质量浓度为147.38 pg/m3;PM2.5中汞的质量浓度为35.98 pg/m3~178.58 pg/m3,平均质量浓度为104.10 pg/m3。不同功能区大气颗粒态汞质量浓度的分布趋势为:交通综合区>旅游区>住宿综合区>商业区。大气颗粒态汞60%以上存在于可吸入肺的PM2.5中,细颗粒物富集汞的能力比粗颗粒物强。
採集瞭南京市2012年鼕季4箇功能區的PM2.5、PM10、TSP樣品,對不同粒徑大氣顆粒物中的顆粒態汞測試。結果錶明,南京鼕季大氣顆粒物TSP中汞的質量濃度為49.26 pg/m3~257.14 pg/m3,平均質量濃度為161.27 pg/m3;PM10中汞的質量濃度為44.82 pg/m3~228.29 pg/m3,平均質量濃度為147.38 pg/m3;PM2.5中汞的質量濃度為35.98 pg/m3~178.58 pg/m3,平均質量濃度為104.10 pg/m3。不同功能區大氣顆粒態汞質量濃度的分佈趨勢為:交通綜閤區>旅遊區>住宿綜閤區>商業區。大氣顆粒態汞60%以上存在于可吸入肺的PM2.5中,細顆粒物富集汞的能力比粗顆粒物彊。
채집료남경시2012년동계4개공능구적PM2.5、PM10、TSP양품,대불동립경대기과립물중적과립태홍측시。결과표명,남경동계대기과립물TSP중홍적질량농도위49.26 pg/m3~257.14 pg/m3,평균질량농도위161.27 pg/m3;PM10중홍적질량농도위44.82 pg/m3~228.29 pg/m3,평균질량농도위147.38 pg/m3;PM2.5중홍적질량농도위35.98 pg/m3~178.58 pg/m3,평균질량농도위104.10 pg/m3。불동공능구대기과립태홍질량농도적분포추세위:교통종합구>여유구>주숙종합구>상업구。대기과립태홍60%이상존재우가흡입폐적PM2.5중,세과립물부집홍적능력비조과립물강。
The samples of the PM2.5, PM10, TSP were collected in four functional sites of Nanjing during winter in 2012 , and the particular mercury concentrations in different size were analyzed .The results indicated that the mercury concentrations of TSP were 49.26 pg/m3 ~257.14 pg/m3 , the average concentration was 161.27 pg/m3.The mercury concentrations of PM10 were 44.82 pg/m3 ~228.29 pg/m3, the average concen-tration was 147.38 pg/m3.The mercury concentrations of PM2.5 were 35.98 pg/m3 ~178.58 pg/m3, the aver-age concentration was 104 .10 pg/m3 .The sequence of atmospheric particulate mercury concentration in different functional areas was:traffic district >tourist area >residential district >business district .More than 60%of particulates mercury was combined with fine aerosol , which can be inhaled into the lungs .The fine particulate matters enrich mercury much easier than the coarse particles .