Characteristics and health risks of ambient PM2.5-bound metals in Shenzhen
GU Tian-fa1, YAN Run-hua2, YAO Pei-ting2, LIN Xiao-yu2, LUO Yao2, CAO Li-ming2, ZHANG Ming-di1, HUANG Xiao-feng2
1. Shenzhen Environmental Monitoring Center of Guangdong Province, Shenzhen 518049, China; 2. Laboratory of Atmospheric Observation Supersite, School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen 518055, China
Abstract：In this study, mass concentrations of 15PM2.5-bound metals in Shenzhen's road ambient air were online observed with a resolution of 1h from March 2020 to February 2021. Results showed that: total average concentration of PM2.5-bound metals in the road ambient air in Shenzhen was 1062.3±434.6ng/m3, and Fe, Al, K, Ca and Zn were the main contributor, which contribute 95.5% of total metals. Higher concentration of Fe was strongly affected by road dust and vehicle emissions. Significant seasonal differences happened in of metals. The concentration was the highest in winter (1709.3ng/m3) and lowest in summer (644.1ng/m3). Mn, Fe, Cr, Zn and Ca obtained obvious diurnal variation, which were consistent with traffic peaks for vehicles. Diurnal variation analysis revealed that: high concentrations of V and Ni from ship emissions at night deserve attention, while the concentrations of Mn, Zn and Ca were higher during the day than at night, which was related to the higher traffic flow of vehicles during the day. The daytime and nighttime concentrations of total metals on high pollution days were both 1.9times the average daytime and nighttime concentrations throughout the year. Non-carcinogenic risks of adults and children exposed to the road ambient air in Shenzhen were lower than the threshold of 1. However, total carcinogenic risks (6.5×10-6) exceeded the carcinogenic risk threshold of 10-6, and the sum of the carcinogenic risks of As and Cr (mainly from vehicle emissions) accounted for 88.9% of the total carcinogenic risk, indicating that the carcinogenic risk in PM2.5-bound metals of traffic deserves attention and needs to be controlled continuously.
古添发, 闫润华, 姚沛廷, 林晓玉, 罗遥, 曹礼明, 张明棣, 黄晓锋. 深圳市大气中PM2.5载带金属污染特征及健康风险[J]. 中国环境科学, 2023, 43(1): 88-95.
GU Tian-fa, YAN Run-hua, YAO Pei-ting, LIN Xiao-yu, LUO Yao, CAO Li-ming, ZHANG Ming-di, HUANG Xiao-feng. Characteristics and health risks of ambient PM2.5-bound metals in Shenzhen. CHINA ENVIRONMENTAL SCIENCECE, 2023, 43(1): 88-95.
Coleman N C, Burnett R T, Ezzati M, et al. Fine Particulate Matter Exposure and Cancer Incidence:Analysis of SEER Cancer Registry Data from 1992-2016[J]. Environmental Health Perspectives, 2020, 128(10):107004.
[2]
Ahmad H R, Sipra K M, Sardar M F, et al. Integrated risk assessment of potentially toxic elements and particle pollution in urban road dust of megacity of Pakistan[J]. Human and Ecological Risk Assessment, 2019,26:1810-1831.
[3]
Sun Y, Zhou Q, Xie X, et al. Spatial, sources and risk assessment of heavy metal contamination of urban soils in typical regions of Shenyang, China[J]. Journal of Hazardous Materials, 2010,174(1-3):455-462.
[4]
Na Z, Liu J, Wang Q, et al. Heavy metals exposure of children from stairway and sidewalk dust in the smelting district, northeast of China[J]. Atmospheric Environment, 2010,44(27):3239-3245.
[5]
He L Y, Hu M, Zhang Y H, et al. Fine particle emissions from on-road vehicles in the Zhujiang Tunnel, China[J]. Environmental Science & Technology, 2008,42(12):4461.
[6]
Xia L, Gao Y. Characterization of trace elements in PM2.5 aerosols in the vicinity of highways in Northeast New Jersey in the US East Coast[J]. Atmospheric Pollution Research, 2011,2(1):34-44.
[7]
赵兴敏,杨扬,郭欣欣,等.长春市典型高架公路大气环境颗粒物中重金属污染特征[J]. 环境科学学报, 2017,37(9):9. Zhao X M, Yang Y, Guo X X, et al. Pollution characteristics of heavy metals in atmospheric particulates from typical elevated highway in Changchun City[J]. Acta Scientiae Circumstantia, 2017,37(9):9.
[8]
Li P H, Yu J, Bi C L, et al. Health risk assessment for highway toll station workers exposed to PM2.5-bound heavy metals[J]. Atmospheric Pollution Research, 2019,10(4):1024-1030.
[9]
Su C P, Peng X, Huang X F, et al. Development and application of a mass closure PM2.5 composition online monitoring system[J]. Atmospheric Measurement Techniques, 2020,13(10):5407-5422.
[10]
古添发,郑锦怡,张明棣,等.深圳市蓝天工程路边站建设与发展[J]. 环境与发展, 2021,33(3):9. Gu T F, Zheng J Y, Zhang M D, et al. Analysis on the construction and development of roadside station of Shenzhen Lantian Project[J]. Environment and Development, 2021,33(3):9.
[11]
Yang X, Zheng M, Liu Y, et al. Exploring sources and health risks of metals in Beijing PM2.5:Insights from long-term online measurements[J]. 2022,814:151954.
[12]
Cai J, Wang J, Zhang Y, et al. Source apportionment of Pb-containing particles in Beijing during January 2013[J]. Environmental Pollution, 2017,226(Jul.):30-40.
[13]
Liu Y, Zheng M, Yu M, et al. High-time-resolution source apportionment of PM2.5 in Beijing with multiple models[J]. Atmospheric Chemistry and Physics, 2019,19(9):6595-6609.
[14]
雷建容,云龙,苏翠平,等.深圳城市大气PM2.5中金属元素的在线测量与来源特征[J]. 环境科学学报, 2019,39(1):6. Lei J R, Yun L, Su C P, et al. On-line measurement and source characteristics of metals in PM2.5 urban Shenzhen.[J]. Acta Scientiae Circumstantia, 2019,39(1):6.
[15]
Furger M, Minguillón M C, Yadav V, et al. Elemental composition of ambient aerosols measured with high temporal resolution using an online XRF spectrometer[J]. Atmospheric Measurement Techniques, 2017,10(6):1-26.
[16]
Integrated Risk Information System. IRIS Assessments.[DB/OL]. https://www.epa.gov/iris. 2021.
[17]
International Agency for Research on Cancer. IARC Monographs on the Evaluation of Carcinogenic Risks to Humans.[EB/OL]. https://monographs.iarc.who.int/list-of-classifications. 2004.
[18]
Huang R J, Cheng R, Jing M, et al. Source-specific health risk analysis on participate trace elements:coal combustion and traffic emission as major contributors in wintertime Beijing[J]. Environmental Science & Technology, 2018,52(19):10967-10974.
Ferreira-Baptista L, De Miguel E. Geochemistry and risk assessment of street dust in Luanda, Angola:A tropical urban environment[J]. Atmospheric Environment, 2005,39(25):4501-4512.
[21]
Wang S S, Hu G G, Yu R L, et al. Bioaccessibility and source-specific health risk of heavy metals in PM2.5 in a coastal city in China[J]. Environmental Advances, 2021,4:100047.
[22]
Dahmardeh Behrooz R, Kaskaoutis D G, Grivas G, et al. Human health risk assessment for toxic elements in the extreme ambient dust conditions observed in Sistan, Iran[J]. Chemosphere, 2021,262:127835.
[23]
Roy D, Singh G, Seo Y C. Carcinogenic and non-carcinogenic risks from PM10-and PM2.5-Bound metals in a critically polluted coal mining area[J]. Atmospheric Pollution Research, 2019,10(6):1964- 1975.
[24]
United States Environmental Protection Agency. Highlights of the Exposure Factors Handbook (Final Report)[R]. https://cfpub.epa.gov/ncea/risk/recordisplay.cfm?deid=221023.2011.
[25]
Cai Y, Zhou M G, Li X H, et al. Life expectancy and influence on disease in China, 2013[J]. Chinese Journal of Epidemiology, 2017, 38(8):4.
[26]
Chen H, Teng Y, Lu S, et al. Contamination features and health risk of soil heavy metals in China[J]. Science of the Total Environment, 2015,512:143-153.
[27]
Lv Y, Li X, Xu T T, et al. Size distributions of polycyclic aromatic hydrocarbons in urban atmosphere:sorption mechanism and source contributions to respiratory deposition[J]. Atmospheric Chemistry and Physics, 2016,16(5):2971-2983.
[28]
侯捷,曲艳慧,宁大亮,等.我国居民暴露参数特征及其对风险评估的影响[J]. 环境科学与技术, 2014,37(8):179-187. Hou J, Yanhui Q U, Ning D, et al. Characteristic of human exposure factors in china and their uncertainty analysis in health risk assessment[J]. Environmental Science and Technology, 2014,37(8):179-187.
[29]
Pena-Fernandez A, Gonzalez-Munoz M J, Lobo-Bedmar M C Establishing the importance of human health risk assessment for metals and metalloids in urban environments[J]. Environment International, 2014,72:176-185.
[30]
Zhao L, Xu Y, Hou H, et al. Source identification and health risk assessment of metals in urban soils around the Tanggu chemical industrial district, Tianjin, China[J]. Science of the Total Environment, 2014,468:654-662.
[31]
Bello S, Muhammad B G, Bature B Total Excess Lifetime Cancer Risk Estimation from Enhanced HeavyMetals Concentrations Resulting from Tailings in Katsina Steel RollingMill, Nigeria[J]. Journal of Material Sciences & Engineering, 2017,6(3):2169-0022.
[32]
Chen H, Lu X, Li L Y. Spatial distribution and risk assessment of metals in dust based on samples from nursery and primary schools of Xi'an, China[J]. Atmospheric Environment, 2014,88:172-182.
[33]
Yan R H, Peng X, Lin W W, et al. Trends and Challenges Regarding the Source-Specific Health Risk of PM2.5-Bound Metals in a Chinese Megacity from 2014 to 2020[J]. Environmental Science & Technology, 2022,56(11):6996-7005.
[34]
Nguyen Q T, Skov H, SøRensen L L, et al. Source apportionment of particles at Station Nord, North East Greenland during 2008~2010 using COPREM and PMF analysis[J]. Atmospheric Chemistry and Physics, 2013,13:35-49.
[35]
Ying X, Zhou J, Schauer J J, et al. Seasonal and spatial differences in source contributions to PM2.5 in Wuhan, China[J]. Science of the Total Environment, 2017,577:155-165.
[36]
云慧,何凌燕,黄晓锋,等.深圳市PM2.5化学组成与时空分布特征[J]. 环境科学, 2013,34(4):1245-1251. Yun H, He L Y, Huang X F, et al. Characterising seasonal variation and spatial distribution of PM2.5 species in Shenzhen[J]. Environmental Science, 2013,34(4):1245-1251.
[37]
Nicolas J, Chiari M, Crespo J, et al. Quantification of Saharan and local dust impact in an arid Mediterranean area by the positive matrix factorization (PMF) technique[J]. Atmospheric Environment, 2008, 42(39):8872-8882.
[38]
Dall'ostoX M, Querol X, Amato F, et al. Hourly elemental concentrations in PM2.5 aerosols sampled simultaneously at urban background and road site during SAPUSS-diurnal variations and PMF receptor modeling[J]. Atmospheric Chemistry and Physics, 2013,13(8):4375-4392.
[39]
Wang Y F, Huang K L, Li C T, et al. Emissions of fuel metals content from a diesel vehicle engine[J]. Atmospheric Environment, 2003, 37(33):4637-4643.
[40]
Dong S, Gonzalez R O, Harrison R M, et al. Isotopic signatures in atmospheric particulate matter suggest important contributions from recycled gasoline for lead and non-exhaust traffic sources for copper and zinc in aerosols in London, United Kingdom[J]. Atmospheric Environment, 2017,165:88-98.
[41]
Johansson, C, Norman, M, Burman, L. Road traffic emission factors for heavy metals[J]. Atmospheric Environment, 2009,43(31):4681- 4688.
[42]
Liu B, Li T, Yang J, et al. Source apportionment and a novel approach of estimating regional contributions to ambient PM2.5 in Haikou, China[J]. Environmental Pollution, 2017,223:334-345.
[43]
Moreno T, Karanasiou A, Amato F, et al. Daily and hourly sourcing of metallic and mineral dust in urban air contaminated by traffic and coal-burning emissions[J]. Atmospheric Environment, 2013,68:33- 44.
[44]
Qi J, Liu X, Yao X, et al. The concentration, source and deposition flux of ammonium and nitrate in atmospheric particles during dust events at a coastal site in northern China[J]. Atmospheric Chemistry and Physics, 2018,18(2):571-586.
[45]
María C M, Marta C, Gerard H, et al. Spatial variability of trace elements and sources for improved exposure assessment in Barcelona[J]. Atmospheric Environment, 2014,89(1):268-281.
[46]
Sofowote U M, Su Y, Dabek-Zlotorzynska E, et al. Sources and temporal variations of constrained PMF factors obtained from multiple-year receptor modeling of ambient PM2.5 data from five speciation sites in Ontario, Canada[J]. Atmospheric Environment, 2015,108:140-150.
[47]
Huang X F, Yun H, Gong Z H, et al. Source apportionment and secondary organic aerosol estimation of PM2.5 in an urban atmosphere in China[J]. Science China Earth Sciences, 2014,57(6):1352-1362.
[48]
Kong S F, Li L, Li X X, et al. The impacts of firework burning at the Chinese Spring Festival on air quality:insights of tracers, source evolution and aging processes[J]. Atmos. Chem. Phys., 2015,15(4):2167-2184.
[49]
Chen X C, Cao J J, Ward T J, et al. Characteristics and toxicological effects of commuter exposure to black carbon and metal components of fine particles (PM2.5) in Hong Kong[J]. Science of the Total Environment, 2020,742:140501.
[50]
Zou B B, Huang X F, Zhang B, et al. Source apportionment of PM2.5 pollution in an industrial city in southern China[J]. Atmospheric Pollution Research, 2017,8(6):1193-1202.
[51]
Fu S J, Yue D L, Lin W W, et al. Insights into the source-specific health risk of ambient particle-bound metals in the Pearl River Delta region, China[J]. Ecotoxicology and Environmental Safety, 2021,224:112642.
[52]
Xie J W, Jin L, Cui J L, et al. Health risk-oriented source apportionment of PM2.5-associated trace metals[J]. Environmental Pollution, 2020,262:114655.
[53]
杜金花,张宜升,何凌燕,等.深圳某地区大气PM2.5中重金属的污染特征及健康风险评价[J]. 环境与健康杂志, 2012,29(9):3. Du J H, Zhang Y S, He L Y, et al. Pollution characteristics and health risk assessment of heavy metals in atmospheric PM2.5 in a certain area of Shenzhen[J]. Journal of Environment and Health, 2012,29(9):3.
[54]
Hao Y F, Luo B, Simayi M, et al. Spatiotemporal patterns of PM2.5 elemental composition over China and associated health risks[J]. Environmental Pollution, 2020,265(Pt B):114910.
[55]
Yang X, Zheng M, Liu Y, et al. Exploring sources and health risks of metals in Beijing PM2.5:Insights from long-term online measurements[J]. Science of the Total Environment, 2022,814:151954.
