Concentration, Source, and Health Risk Assessment of PM1 Heavy Metals in Typical Pollution Processes in Zhengzhou

被引：1

作者：

Zhai S.-T. ^{[1
]}

Wang S.-B. ^{[1
]}

Zhang D. ^{[1
]}

Zhao X.-N. ^{[1
]}

Yang J.-R. ^{[1
]}

Liu Y. ^{[2
]}

Chen H.-Y. ^{[2
]}

Zhang R.-Q. ^{[2
,3
]}

机构：

[1] College of Chemistry, Zhengzhou University, Zhengzhou

[2] College of Ecology and Environment, Zhengzhou University, Zhengzhou

[3] Institute of Environmental Science, Zhengzhou University, Zhengzhou

来源：

Huanjing Kexue/Environmental Science | 2022年 / 43卷 / 03期

关键词：

Health risks; Heavy metal elements; PM[!sub]1[!/sub; Regional transport; Source analysis;

D O I：

10.13227/j.hjkx.202107001

中图分类号：

学科分类号：

摘要：

Heavy metal elements in particulate matter can cause adverse effects on human health, and the smaller the particle size, the greater the harm. A total of 16 heavy metal elements (Al, Si, K, Ca, V, Cr, Mn, Fe, Ni, Cu, Zn, As, Se, Ba, Pb, and Cd) in PM1 were continuously determined by an online heavy metal observation instrument in Zhengzhou city from January 7 to 25, 2021. The results showed that ρ(K) concentration was the highest during the observation period (0.62 μg•m-3). According to pollutant concentration and meteorological characteristics, the observation period was divided into clean days, dust days, and haze days. The contribution of heavy metal pollution characteristics and health risk assessment in atmospheric PM1 was different under different pollution processes. The US EPA health risk assessment method was used to assess the health risks of heavy metals, and the enrichment factor method and positive matrix factorization (PMF) were used to analyze the sources of heavy metals. The influence of the transmission was evaluated by using the concentration-weighted trajectory (CWT) method and the backward trajectory method. The results show that the enrichment factors of Zn, As, Se, Pb, and Cd were more than 100 under different pollution processes, which were greatly affected by human activities. During the sampling period, the main sources of heavy metals were industrial sources, coal/biomass sources, motor vehicle sources, and dust sources. The results of the health risk assessment were substituted into PMF analysis, and it was found that industrial sources were the main contributing sources of carcinogenic and non-carcinogenic health risks during cleaning days, dust days, and haze days, and the carcinogenic risk of heavy metal elements in PM1 in this region for adults exceeded that for children. CWT and backward trajectory methods revealed that regional transmission was one of the main factors affecting local health risks. © 2022, Science Press. All right reserved.

引用

页码：1180 / 1189

页数：9

共 51 条

[1] Liu C, Chen R J, Sera F, Et al., Ambient particulate air pollution and daily mortality in 652 cities, New England Journal of Medicine, 381, 8, pp. 705-715, (2019)
[2] Dai L Z, Zanobetti A, Koutrakis P, Et al., Associations of fine particulate matter species with mortality in the United States: a multicity time-series analysis, Environmental Health Perspectives, 122, 8, pp. 837-842, (2014)
[3] Liu J W, Chen Y J, Cao H B, Et al., Burden of typical diseases attributed to the sources of PM2.5-bound toxic metals in Beijing: an integrated approach to source apportionment and QALYs, Environment International, 131, (2019)
[4] Qi J W, Zhang R Q, Jiang N, Et al., Characterization, sources, and health risks of PM2.5-bound PAHs during autumn and winter in Luoyang City, Environmental Science, 42, 2, pp. 595-603, (2021)
[5] Lei W K, Li X R, Zhang L, Et al., Pollution characteristics and health risk assessment of heavy metals in PM2.5 collected in Baoding, Environmental Science, 42, 1, pp. 38-44, (2021)
[6] Wu T, Lan C Y., Vanadium in environment and its harm to human health, Guangdong Trace Elements Science, 11, 1, pp. 11-15, (2004)
[7] Liang Q F., Chromium and human health, Guangdong Trace Elements Science, 13, 2, pp. 67-69, (2006)
[8] Han L, Zhang H D., Toxicity and hazard of lead and cadmium, Journal of Occupational Health and Damage, 24, 3, pp. 173-177, (2009)
[9] Schraufnagel D E., The health effects of ultrafine particles, Experimental & Molecular Medicine, 52, 3, pp. 311-317, (2020)
[10] Penttinen P, Timonen K L, Tiittanen P, Et al., Ultrafine particles in urban air and respiratory health among adult asthmatics, The European Respiratory Journal, 17, 3, pp. 428-435, (2001)

← 1 2 3 4 5 6 →