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Concentrations, Speciation, and Bioavailability of Heavy Metals in Street Dust as well as Relationships with Physiochemcal Properties: A Case Study of Jinan City in East China.
Environ Sci Pollut Res Int. 2020 Oct; 27(28):35724-35737.ES

Abstract

A total of 77 street dust samples were collected from Jinan City in East China and were analyzed for the concentrations, speciation, bioavailability, and influencing factors of ten heavy metals. The results showed that the average concentrations of Ba, Co, Cr, Cu, Cd, Mn, Ni, Pb, Zn, and V in the street dust were 642.77, 8.24, 114.09, 87.71, 1.08, 517.04, 30.29, 80.32, 497.84, and 51.76 mg/kg, and the concentrations of Ba, Cr, Cu, Cd, Ni, Pb, and Zn exceeded the local soil element background values. In the street dust, Ba, Co, Cr, Mn, Ni, and V were mainly in the residual; Cu and Pb were controlled by the oxidizable; Cd mainly existed in the acid extractable; and Zn was dominated by the reducible. According to the ratios of the acid extractable to the sum of four forms, Cd (39.85%) presented a high environmental risk; Mn and Zn (24.29% and 27.78%) exhibited a medium risk; and V, Cu, Pb, Ba, Co, Ni, and Cr had no environmental risk. The order of mobility or potential risk of heavy metals was Cd (85.8%) > Zn (77.1%) > Cu (64.3%) > Pb (62.0%) > Mn (51.7%) > Ba (38.9%) > Co (31.2%) > Ni (30.1%) > V (25.8%) > Cr (23.1%), suggesting that Cd, Zn, Cu, Pb, and Mn presented relatively high movability and risk. The bioavailability order of heavy metals was Cd (82.7%) > Zn (63.6%) > Mn (40.4%) > Ni (20.4%) > Pb (11.7%) > Cu (11.1%) > V (7.8%) > Cr (3.7%) in the gastric phase and Cu (24.6%) > Cd (19.9%) > Mn (16.2%) > Ni (6.6%) > Pb (5.7%) > Zn (4.4%) > Cr (3.0%) > V (2.3%) in intestinal phase, implying that Cd, Zn, Mn, and Cu were highly bioavailable in the gastrointestinal environment, which coincided with the risk of speciation. The speciation of heavy metals in street dust had certain correlations with their bioavailability. The physiochemical properties of street dust had significant effects on the concentrations, speciation, and bioavailability of heavy metals in street dust. The simple, fast, and nondestructive magnetic measurements could be used as indicators of the concentrations, speciation, and bioavailability of heavy metals in street dust.

Authors+Show Affiliations

School of Geography and Tourism, Shaanxi Normal University, Xi'an, 710119, People's Republic of China.School of Geography and Tourism, Shaanxi Normal University, Xi'an, 710119, People's Republic of China.School of Geography and Tourism, Shaanxi Normal University, Xi'an, 710119, People's Republic of China. wanglijun@snnu.edu.cn. International Joint Research Center of Shaanxi Province for Pollutant Exposure and Eco-environmental Health, Xi'an, 710119, People's Republic of China. wanglijun@snnu.edu.cn.School of Geography and Tourism, Shaanxi Normal University, Xi'an, 710119, People's Republic of China.School of Geography and Tourism, Shaanxi Normal University, Xi'an, 710119, People's Republic of China.School of Geography and Tourism, Shaanxi Normal University, Xi'an, 710119, People's Republic of China. International Joint Research Center of Shaanxi Province for Pollutant Exposure and Eco-environmental Health, Xi'an, 710119, People's Republic of China.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32601863

Citation

Dong, Shuzhen, et al. "Concentrations, Speciation, and Bioavailability of Heavy Metals in Street Dust as Well as Relationships With Physiochemcal Properties: a Case Study of Jinan City in East China." Environmental Science and Pollution Research International, vol. 27, no. 28, 2020, pp. 35724-35737.
Dong S, Zhang S, Wang L, et al. Concentrations, Speciation, and Bioavailability of Heavy Metals in Street Dust as well as Relationships with Physiochemcal Properties: A Case Study of Jinan City in East China. Environ Sci Pollut Res Int. 2020;27(28):35724-35737.
Dong, S., Zhang, S., Wang, L., Ma, G., Lu, X., & Li, X. (2020). Concentrations, Speciation, and Bioavailability of Heavy Metals in Street Dust as well as Relationships with Physiochemcal Properties: A Case Study of Jinan City in East China. Environmental Science and Pollution Research International, 27(28), 35724-35737. https://doi.org/10.1007/s11356-020-09761-6
Dong S, et al. Concentrations, Speciation, and Bioavailability of Heavy Metals in Street Dust as Well as Relationships With Physiochemcal Properties: a Case Study of Jinan City in East China. Environ Sci Pollut Res Int. 2020;27(28):35724-35737. PubMed PMID: 32601863.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Concentrations, Speciation, and Bioavailability of Heavy Metals in Street Dust as well as Relationships with Physiochemcal Properties: A Case Study of Jinan City in East China. AU - Dong,Shuzhen, AU - Zhang,Shengwei, AU - Wang,Lijun, AU - Ma,Ge, AU - Lu,Xinwei, AU - Li,Xiaoping, Y1 - 2020/06/29/ PY - 2019/12/20/received PY - 2020/06/15/accepted PY - 2020/7/1/pubmed PY - 2020/8/29/medline PY - 2020/7/1/entrez KW - Bioavailability KW - Heavy metal KW - Influencing factor KW - Speciation KW - Street dust SP - 35724 EP - 35737 JF - Environmental science and pollution research international JO - Environ Sci Pollut Res Int VL - 27 IS - 28 N2 - A total of 77 street dust samples were collected from Jinan City in East China and were analyzed for the concentrations, speciation, bioavailability, and influencing factors of ten heavy metals. The results showed that the average concentrations of Ba, Co, Cr, Cu, Cd, Mn, Ni, Pb, Zn, and V in the street dust were 642.77, 8.24, 114.09, 87.71, 1.08, 517.04, 30.29, 80.32, 497.84, and 51.76 mg/kg, and the concentrations of Ba, Cr, Cu, Cd, Ni, Pb, and Zn exceeded the local soil element background values. In the street dust, Ba, Co, Cr, Mn, Ni, and V were mainly in the residual; Cu and Pb were controlled by the oxidizable; Cd mainly existed in the acid extractable; and Zn was dominated by the reducible. According to the ratios of the acid extractable to the sum of four forms, Cd (39.85%) presented a high environmental risk; Mn and Zn (24.29% and 27.78%) exhibited a medium risk; and V, Cu, Pb, Ba, Co, Ni, and Cr had no environmental risk. The order of mobility or potential risk of heavy metals was Cd (85.8%) > Zn (77.1%) > Cu (64.3%) > Pb (62.0%) > Mn (51.7%) > Ba (38.9%) > Co (31.2%) > Ni (30.1%) > V (25.8%) > Cr (23.1%), suggesting that Cd, Zn, Cu, Pb, and Mn presented relatively high movability and risk. The bioavailability order of heavy metals was Cd (82.7%) > Zn (63.6%) > Mn (40.4%) > Ni (20.4%) > Pb (11.7%) > Cu (11.1%) > V (7.8%) > Cr (3.7%) in the gastric phase and Cu (24.6%) > Cd (19.9%) > Mn (16.2%) > Ni (6.6%) > Pb (5.7%) > Zn (4.4%) > Cr (3.0%) > V (2.3%) in intestinal phase, implying that Cd, Zn, Mn, and Cu were highly bioavailable in the gastrointestinal environment, which coincided with the risk of speciation. The speciation of heavy metals in street dust had certain correlations with their bioavailability. The physiochemical properties of street dust had significant effects on the concentrations, speciation, and bioavailability of heavy metals in street dust. The simple, fast, and nondestructive magnetic measurements could be used as indicators of the concentrations, speciation, and bioavailability of heavy metals in street dust. SN - 1614-7499 UR - https://www.unboundmedicine.com/medline/citation/32601863/Concentrations_Speciation_and_Bioavailability_of_Heavy_Metals_in_Street_Dust_as_well_as_Relationships_with_Physiochemcal_Properties:_A_Case_Study_of_Jinan_City_in_East_China_ DB - PRIME DP - Unbound Medicine ER -