Li Qi-Lu, Yang Kong, Li Jun, Zhang Gan
Key Laboratory for Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, School of Environment, Henan Normal University, Xinxiang 453007, China.
State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, China.
Huan Jing Ke Xue. 2018 Apr 8;39(4):1537-1543. doi: 10.13227/j.hjkx.201708186.
Atmospheric gaseous and particle samples were collected using high-volume active samplers in Guangzhou and Wuzhishan. Concentrations of all the eight selected new halogenated flame retardants (NHFRs), including -DP, -DP, TBPH, PBEB, HBB, TBE, TBB, and DBDPE, were measured. The mean ∑NHFR concentration was significantly higher in Guangzhou (335 pg·m) than in Wuzhishan (90.6 pg·m). DBDPE was the most abundant component in Guangzhou, accounting for 66.9% of the ∑NHFR concentration, while TBPH was the major component (65.8%) in Wuzhishan. This indicates different pollution characteristics in Guangzhou and Wuzhishan. In addition, ∑NHFR concentration presented distinct seasonal variations only in Guangzhou, which could result from the different sources of origin of NHFRs. Principle component analysis showed that the atmospheric NHFRs in Guangzhou and Wuzhishan could originate from different sources. In the light of the results of wind frequency and HYSPLIT model analysis, NHFRs seem to originate mainly from the emissions from surrounding areas, including from the inputs of e-waste recycling, industrial activities, and re-volatilization of consumer goods in Guangzhou, while NHFRs mainly seem to originate from the movement of air mass over the Pearl River Delta and the seas in Wuzhishan. Meanwhile, several NHFRs presented different loading patterns in Guangzhou and Wuzhishan, and the emissions from different sources and commercial products could be the impactors. With detection of high NHFR concentrations in the atmosphere of Guangzhou, the long-time exposure of the surrounding residents (especially infants) is suspected to cause potential health risk.
在广州和五指山，使用大容量主动采样器采集了大气气态和颗粒物样本。测量了包括 -DP、-DP、TBPH、PBEB、HBB、TBE、TBB 和 DBDPE 在内的所有八种选定的新型卤化阻燃剂（NHFRs）的浓度。广州的平均 ∑NHFR 浓度（335 pg·m）显著高于五指山（90.6 pg·m）。DBDPE 是广州含量最高的成分，占 ∑NHFR 浓度的 66.9%，而 TBPH 是五指山的主要成分（65.8%）。这表明广州和五指山具有不同的污染特征。此外，仅在广州，∑NHFR 浓度呈现出明显的季节变化，这可能是由于 NHFRs 的来源不同所致。主成分分析表明，广州和五指山大气中的 NHFRs 可能源自不同的来源。根据风频和 HYSPLIT 模型分析结果，NHFRs 似乎主要源自周边地区的排放，包括广州电子垃圾回收、工业活动和消费品再挥发的输入，而 NHFRs 在五指山似乎主要源自珠江三角洲上空气团的移动以及海洋。同时，几种 NHFRs 在广州和五指山呈现出不同的负荷模式，不同来源和商业产品的排放可能是影响因素。鉴于在广州大气中检测到高浓度的 NHFRs，怀疑周边居民（尤其是婴儿）长期暴露可能会导致潜在的健康风险。
