Pine needles as urban atmospheric pollution indicators: Heavy metal concentrations and Pb isotopic source identification

Chen Yizhu; Ning Yongqiang; Bi XiangyangLiu JinlingYang ShaochenLiu ZhifuHuang Wenmin

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Pine needles as urban atmospheric pollution indicators: Heavy metal concentrations and Pb isotopic source identification

机译：Pine needles as urban atmospheric pollution indicators: Heavy metal concentrations and Pb isotopic source identification

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摘要

Pine needles are reliable passive bio-samplers that can be used to monitor atmospheric pollution levels. This study applied Pb isotope and multivariate statistical analyses to pine needles to examine the characteristics, sources, and ecological risks of atmospheric heavy metal pollution in the cities of the middle reaches of the Yangtze River, China. The heavy metal concentrations were higher than those measured in pine needles elsewhere in the world. They were higher in the metropolitan city (Wuhan) than in the medium-sized city (Yichang) and lowest in the natural setting (Shennongjia Forestry District), which is consistent with trends in urbanization and industrialization. Principal component analysis grouped the metals into three main sets associated with industrial activities and traffic sources. The Pb composition determined the main anthropogenic Pb sources were vehicle exhaust and industrial activities related to the lead-zinc ore, only a few of which were coal combustion. Three risk assessment indexes (pollution load index, ecological risk index, and bioconcentration factor) suggest that atmospheric heavy metals in the study area pose moderate environmental and health risks.

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来源
《Chemosphere》 |2022年第6期|134043.1-134043.9|共9页
作者
Chen Yizhu; Ning Yongqiang; Bi XiangyangLiu JinlingYang ShaochenLiu ZhifuHuang Wenmin;
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作者单位

China Univ Geosci, Sch Earth Sci, Hubei Key Lab Crit Zone Evolut, Wuhan 430074, Peoples R China|Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R China|Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Ke;

China Univ Geosci, Sch Earth Sci, Hubei Key Lab Crit Zone Evolut, Wuhan 430074, Peoples R China;

Chinese Acad Sci, Key Lab Aquat Bot & Watershed Ecol, Wuhan Bot Garden, Wuhan 430074, Peoples R China;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《化学文摘》(CA);
原文格式 PDF
正文语种英语
中图分类
关键词
Pine needles; Atmospheric heavy metals; Multivariate statistical analysis; Pb isotopic;

Pine needles as urban atmospheric pollution indicators: Heavy metal concentrations and Pb isotopic source identification

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