Concentrations and inhalation risk assessment of short-chain polychlorinated paraffins in the urban air of Dalian, China
Concentrations and inhalation risk assessment of short-chain polychlorinated paraffins in the urban air of Dalian, China
复制标题
大连城市空气中短链多氯烷烃浓度及吸入风险评估
DOI：
10.1007/s11356-017-9775-x
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发表时间：
2017-07
影响因子：
5.8
通讯作者：
Xiaoxiao Li
中科院分区：
文献类型：
--
作者：
Xiuhua Zhu;Hao Bai;Yuan Gao;Jiping Chen;Heping Yuan;Longxing Wang;Wei Wang;Xuewei Dong;Xiaoxiao Li
2010年3月至10月和2016年9月至10月，采用主动大流量采样器对中国大连城市空气中的短链多氯化石蜡（SCCPs）浓度进行了监测。 SCCPs（颗粒相+气相）总浓度范围为 15.12 至 66.44 ng m−3，2010 年平均浓度为 30.26 ng m−3；2016 年 SCCPs 总浓度范围为 65.30 至 91.00 ng m−3，平均浓度为 78.15 ng m−3。六氯化十一烷是气相中的主要成分，而八氯化十一烷和七氯化十三烷是颗粒相中的主要成分。 2010年，SCCPs总量的82.57%~97.16%以气相形式存在，但冬季除外，SCCPs总量的63.11%以颗粒相形式存在；气相空气中SCCPs浓度为夏季>秋季>春季>冬季，与平均环境温度变化呈正相关，而颗粒相则相反。秋季，2016年SCCPs气相浓度和空气总浓度比2010年增加了2.57倍，而SCCPs同族群格局相似。对短链氯化石蜡浓度与气象参数之间进行 Spearman 等级相关分析。通过气体-颗粒分配系数与短链氯化石蜡过冷蒸气压和辛醇-空气分配系数对数的关系来考察气体-颗粒分布。结果表明，吸收机制对分配过程的贡献更大。对SCCPs的暴露风险进行了评估，结果表明大连市室外环境中SCCPs的估计暴露量并未超过欧洲风险评估的健康关注阈值。
The concentrations of short-chain polychlorinated paraffins (SCCPs) in the urban air of Dalian, China, were monitored from March to October 2010 and from September to October 2016 with active high-volume sampler. The total concentration of SCCPs (particulate phase + gas phase) ranged from 15.12 to 66.44 ng m−3, with an average of 30.26 ng m−3in 2010, and 65.30 to 91.00 ng m−3, with an average of 78.15 ng m−3in 2016. Hexa-chlorinated dodecane and hexa-chlorinated undecane are the predominant components in the gas phase, while octa-chlorinated undecane and hepta-chlorinated tridecane are dominant in the particulate phase. In 2010, 82.57–97.16% of the total SCCPs were found in the gas phase, except that in winter, where 63.11% of the total SCCPs were in the particulate phase; the air concentrations of SCCPs in gas phase were summer > autumn > spring > winter, which was positively correlated with the change of the average ambient temperature, while it was the contrary in particulate phase. In autumn, the gas phase and the total air concentration of SCCPs in 2016 were 2.57 times more than that in 2010, while the congener group patterns of SCCPs were similar. Spearman’s rank correlation analysis between the concentrations of SCCPs with meteorological parameters was conducted. The gas-particle distribution was examined through the relationship of the logarithm of the gas-particle partition coefficient with that of the subcooled vapor pressure and the octanol-air partitioning coefficient of SCCPs. Results indicated that the absorption mechanisms contributed more to the partitioning process. The exposure risk of SCCPs was evaluated, which illustrated that the estimated exposure of SCCPs via the outdoor environment in Dalian did not exceed the health concern threshold of the European risk assessment.
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影响因子：
5
作者：
Andrew J. Peters;Gregg T. Tomy;Kevin C. Jones;P. Coleman;G. Stern
通讯作者：
Andrew J. Peters;Gregg T. Tomy;Kevin C. Jones;P. Coleman;G. Stern
DOI：
--
发表时间：
2000
期刊：
Organohalogen compounds
影响因子：
--
作者：
G. Stern;G. Tomy
通讯作者：
G. Stern;G. Tomy
影响因子：
9.8
作者：
Gluge, Juliane;Wang, Zhanyun;Hungerbuhler, Konrad
通讯作者：
Hungerbuhler, Konrad
影响因子：
11.4
作者：
Bo Yuan;Thanh Wang;N. Zhu;Kegang Zhang;Lixi Zeng;Jianjie Fu;Yawei Wang;G. Jiang
通讯作者：
Bo Yuan;Thanh Wang;N. Zhu;Kegang Zhang;Lixi Zeng;Jianjie Fu;Yawei Wang;G. Jiang
中国辽河流域沉积物和土壤中短链氯化石蜡的环境赋存与分布
影响因子：
11.4
作者：
Gao, Yuan;Zhang, Haijun;Chen, Jiping
通讯作者：
Chen, Jiping