乌鲁木齐采暖期前期与后期TSP、PM_(10)、PM_5、PM_(2.5)中重金属分布特征研究

庞梦舟; 帕丽达·牙合甫; 张良绘; 高峰

doi:10.13205/j.hjgc.201504016

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乌鲁木齐采暖期前期与后期TSP、PM_(10)、PM_5、PM_(2.5)中重金属分布特征研究

doi: 10.13205/j.hjgc.201504016

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出版历程
- 刊出日期: 2015-04-22

RESEARCH ON CHARACTERISTICS OF THE HEAVY METALS DISTRIBUTION IN TSP、PM10、 PM5、PM2. 5 IN URUMQI AT THE EARLY AND LATER OF HEATING PERIOD

Pang Mengzhou PaRida·Yakup Zhang Lianghui Gao Feng,

摘要

摘要: 从乌鲁木齐工业区、交通区、生活区、风景对照区4个典型区域入手,利用崂应2050型大气自动采样器及TSP/PM10/PM5/PM2.5/切割头对大气中TSP、PM10、PM5、PM2.5进行同步采集,并采用火焰原子吸收分光光度法及石墨炉原子吸收分光光度法对TSP、PM10、PM5、PM2.5中的6种重金属Cd、Pb、Cu、Ni、Zn、Mn的含量进行了测定。测定结果为:Cd的浓度为0.52~10.72 ng/m3;Pb的浓度为25.66~356.87 ng/m3;Cu的浓度为12.57~173.93 ng/m3;Ni的浓度为1.85~78.22 ng/m3;Zn的浓度为67.58~431.49 ng/m3;Mn的浓度为18.87~310.20 ng/m3。大气颗粒物中各重金属之间存在一定的相关性,重金属的分布与风力也有一定的关系。
- 乌鲁木齐 /
- 采暖期 /
- 重金属
Abstract: From the four typical areas ( industrial zone，transport area，living quarters and scenic spot) in Urumqi， the study used the atmosphere automatic sampler( Lao-ying2050) ， and TSP/PM10 /PM5 /PM2. 5 precietc to collect TSP、PM10、PM5、PM2. 5 in the atmosphere simultaneously． Flame atomic absorption spectrometry and graphite furnace atomic absorption spectrometry was used to measure the concentration of Cd、Pb、Cu、Ni、Zn and Mn in TSP、PM10、PM5、PM2. 5 ． The results showed that: the range of Cd was 0. 52 ～ 10. 72 ng /m3 ; the range of Pb was 25. 66 ～ 356. 87 ng /m3 ; the range of Cu was 12. 57 ～ 173. 93 ng / m3 ; the range of Ni was 1. 85 ～ 78. 22 ng /m3 ; the range of Zn was 67. 58 ～ 431. 49 ng /m3 ; the range of Mn was 18. 87 ～ 310. 20 ng /m3 ． The heavy metal in atmospheric particulates had correlation with wind strength，and the distribution of heavy metals and wind also had a certain relationship．
- Urumqi /
- heating period /
- heavy metals