Volume 24 Issue 2
Apr.  2011
Turn off MathJax
Article Contents

WEN Sheng, GONG Yan, LI JingGuang, SHI TingMing, ZHAO YunFeng, WU YongNing. Particle-bound PCDD/Fs in the Atmosphere of an Electronic Waste Dismantling Area in China[J]. Biomedical and Environmental Sciences, 2011, 24(2): 102-111. doi: 10.3967/0895-3988.2011.02.003
Citation: WEN Sheng, GONG Yan, LI JingGuang, SHI TingMing, ZHAO YunFeng, WU YongNing. Particle-bound PCDD/Fs in the Atmosphere of an Electronic Waste Dismantling Area in China[J]. Biomedical and Environmental Sciences, 2011, 24(2): 102-111. doi: 10.3967/0895-3988.2011.02.003

Particle-bound PCDD/Fs in the Atmosphere of an Electronic Waste Dismantling Area in China

doi: 10.3967/0895-3988.2011.02.003
Funds:  the National Natural Scientific Foundation of China(20907048%30771812)%National Special Fund for Scientific Research in the Public Interest(200902009)%the National High-Tech Research Program of China(2006AA06Z403)%China Postdoctoral Science Foundation funded project(200902009)%the Natural Science Foundation of Fujian Province(2009J05115)
  • Objective Particulate samples from the atmosphere in an electronic waste dismantling area were collected to investigate the levels and sources of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs). Methods Particulate samples including total suspended particulates (TSP) and particulate matter <2.5 μm diameter (PM<,2.5>) were collected on selected non-rainy days in summer (Jul 10-12, 2006) and winter (Jan 11-13, 2007) from Fengjiang (FJ), an electronic waste (e-waste) dismantling area in eastern China, and an adjacent area Luqiao (LQ). The samples were analyzed by isotope dilution-high resolution gas chromatography/high resolution mass spectrometry (HRGC/HRMS). Results In FJ, the mean PCDD/F concentrations (mean TEQ values) were 280.6 pg Nm<'-3> (3.432 pg WHO-TEQ Nm<'-3>) for the TSP samples and 223.3 pg Nm<'-3> (3.180 pg WHO-TEQ Nm<'-3>) for the PM<,2.5> samples. The total PCDD/F concentrations and TEQs in the PM<,2.5> samples were about 66.8%-108.0% of the TSP samples, indicating that the fine particles contained higher levels of PCDD/Fs than coarse particles. The PCDD/F levels in FJ were much higher than those detected in common urban areas around the world, suggesting that the study area was heavily polluted by PCDD/Fs. Furthermore, the total average daily PCDD/F intake in FJ was estimated at 62.11 pg WHO-TEQ kg<'-1>·day<'-1> for adults and 110.11 pg WHO-TEQ kg<'-1>·day<'-1> for children, which greatly exceeds the WHO (1998) tolerable daily intake of 1-4 pg of WHO-TEQ kg<'-1>·day<'-1>. Conclusion The PCDD/F homologues and congener profiles confirmed that the PCDD/Fs in FJ originated from crude e-waste recycling activities. The severe dioxin pollution present in FJ has also substantially influenced the adjacent area of LQ through atmospheric transport. Open burning of medical waste was another source of PCDD/Fs identified in LQ.
  • 加载中
  • 加载中
通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索

Article Metrics

Article views(1359) PDF downloads(38) Cited by()

Proportional views
Related

Particle-bound PCDD/Fs in the Atmosphere of an Electronic Waste Dismantling Area in China

doi: 10.3967/0895-3988.2011.02.003
Funds:  the National Natural Scientific Foundation of China(20907048%30771812)%National Special Fund for Scientific Research in the Public Interest(200902009)%the National High-Tech Research Program of China(2006AA06Z403)%China Postdoctoral Science Foundation funded project(200902009)%the Natural Science Foundation of Fujian Province(2009J05115)

Abstract: Objective Particulate samples from the atmosphere in an electronic waste dismantling area were collected to investigate the levels and sources of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs). Methods Particulate samples including total suspended particulates (TSP) and particulate matter <2.5 μm diameter (PM<,2.5>) were collected on selected non-rainy days in summer (Jul 10-12, 2006) and winter (Jan 11-13, 2007) from Fengjiang (FJ), an electronic waste (e-waste) dismantling area in eastern China, and an adjacent area Luqiao (LQ). The samples were analyzed by isotope dilution-high resolution gas chromatography/high resolution mass spectrometry (HRGC/HRMS). Results In FJ, the mean PCDD/F concentrations (mean TEQ values) were 280.6 pg Nm<'-3> (3.432 pg WHO-TEQ Nm<'-3>) for the TSP samples and 223.3 pg Nm<'-3> (3.180 pg WHO-TEQ Nm<'-3>) for the PM<,2.5> samples. The total PCDD/F concentrations and TEQs in the PM<,2.5> samples were about 66.8%-108.0% of the TSP samples, indicating that the fine particles contained higher levels of PCDD/Fs than coarse particles. The PCDD/F levels in FJ were much higher than those detected in common urban areas around the world, suggesting that the study area was heavily polluted by PCDD/Fs. Furthermore, the total average daily PCDD/F intake in FJ was estimated at 62.11 pg WHO-TEQ kg<'-1>·day<'-1> for adults and 110.11 pg WHO-TEQ kg<'-1>·day<'-1> for children, which greatly exceeds the WHO (1998) tolerable daily intake of 1-4 pg of WHO-TEQ kg<'-1>·day<'-1>. Conclusion The PCDD/F homologues and congener profiles confirmed that the PCDD/Fs in FJ originated from crude e-waste recycling activities. The severe dioxin pollution present in FJ has also substantially influenced the adjacent area of LQ through atmospheric transport. Open burning of medical waste was another source of PCDD/Fs identified in LQ.

WEN Sheng, GONG Yan, LI JingGuang, SHI TingMing, ZHAO YunFeng, WU YongNing. Particle-bound PCDD/Fs in the Atmosphere of an Electronic Waste Dismantling Area in China[J]. Biomedical and Environmental Sciences, 2011, 24(2): 102-111. doi: 10.3967/0895-3988.2011.02.003
Citation: WEN Sheng, GONG Yan, LI JingGuang, SHI TingMing, ZHAO YunFeng, WU YongNing. Particle-bound PCDD/Fs in the Atmosphere of an Electronic Waste Dismantling Area in China[J]. Biomedical and Environmental Sciences, 2011, 24(2): 102-111. doi: 10.3967/0895-3988.2011.02.003

Catalog

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return