Did municipal solid waste landfill have obvious influence on polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs) in ambient air: A case study in East China

Jiafu Li; Chong Wang; Lei Du; Zhiwei Lv; Xiaonan Li; Xuepeng Hu; Zhiguang Niu; Ying Zhang

doi:10.1016/j.wasman.2017.02.014

Did municipal solid waste landfill have obvious influence on polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs) in ambient air: A case study in East China

Waste Manag. 2017 Apr:62:169-176. doi: 10.1016/j.wasman.2017.02.014. Epub 2017 Feb 20.

Authors

Jiafu Li¹, Chong Wang¹, Lei Du¹, Zhiwei Lv², Xiaonan Li¹, Xuepeng Hu¹, Zhiguang Niu³, Ying Zhang⁴

Affiliations

¹ School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China.
² School of Marine Science and Technology, Tianjin University, Tianjin 300072, China.
³ School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China; School of Marine Science and Technology, Tianjin University, Tianjin 300072, China. Electronic address: nzg@tju.edu.cn.
⁴ MOE Key Laboratory of Pollution Processes and Environmental Criteria, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China. Electronic address: zhangying@nankai.edu.cn.

PMID: 28223077
DOI: 10.1016/j.wasman.2017.02.014

Abstract

Municipal solid waste (MSW) landfill was a main way to disposal of MSW and almost 95% of MSW was disposed by landfills in the world. In order to understand the influence of MSW landfill on polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD/Fs) in surrounding atmosphere, 42 ambient air samples were collected and analyzed from surrounding sites, background site, upwind site and downwind site of a MSW landfill in East China. The results of present study were summarized as follows. (1) The total concentrations of PCDD/Fs (∑PCDD/Fs) in ambient air from surrounding sites, background site, upwind site and downwind site were 2.215±1.004, 2.058±0.458, 2.617±1.092 and 1.822±0.566pgNm^-3, respectively. (2) The toxic equivalent concentrations (TEQ) of PCDD/Fs in ambient air from surrounding sites, background site, upwind site and downwind site were 0.103±0.017, 0.096±0.015, 0.120±0.024 and 0.108±0.014pg I-TEQNm^-3, respectively. (3) The congener profiles, ∑PCDD/Fs and TEQ between background atmosphere and surrounding atmosphere of landfill did not show statistically significant difference. (4) The ∑PCDD/Fs and TEQ in ambient air of downwind site were not higher than that of upwind site, suggesting that studied landfill did not have obvious influence on PCDD/Fs in ambient air from downwind site. (5) The 95th percentile carcinogenic risk (CR) of PCDD/Fs in ambient air from surrounding sites, background site, upwind site and downwind site were 8.03×10^-9, 7.57×10^-9, 9.69×10^-9 and 8.15×10^-9, respectively, which were much lower than the threshold value of CR (10^-6), suggesting that studied landfill did not influence the CR of PCDD/Fs in surrounding atmosphere and negligible cancer risk occurred. (6) The non-carcinogenic risk (non-CR) analysis indicated that landfill did not have influence on the non-CR of PCDD/Fs in surrounding atmosphere and no obvious non-carcinogenic effects developed.

Keywords: Ambient air; Environmental impact; Health risk; Municipal solid waste landfill; PCDD/Fs.

MeSH terms

Air Pollutants / analysis*
Atmosphere
China
Dibenzofurans, Polychlorinated / analysis*
Environmental Monitoring*
Polychlorinated Dibenzodioxins / analysis*
Solid Waste
Waste Disposal Facilities*

Substances

Air Pollutants
Dibenzofurans, Polychlorinated
Polychlorinated Dibenzodioxins
Solid Waste