Heavy Metal Emission Characteristics of Urban Road Runoff
DOI:
https://doi.org/10.30564/jees.v2i1.1711Abstract
Pavement runoff sampling points were set up on the main roads of Chengdu city. Six rainfall-runoff events from July to September in 2017 were sampled by synchronous observation of rainfall, runoff and pollution. The concentration changes of copper, lead, zinc, chromium and cadmium in the runoff process were monitored, and the pollution emission regularity and initial scouring effect were studied. The results show that the emission regularity of pavement runoff pollution is closely related to rainfall characteristics and pollutant occurrence, and the concentration of dissolved heavy metals reaches its peak at the initial stage of runoff. The peak time of particulate heavy metal concentration lagged slightly behind that of rainfall intensity. There is a big difference between the strength of initial scouring degree and dissolved heavy metals the stronger the initial scouring degree of total heavy metals, the weaker the dissolved heavy metals. Reducing pavement runoff in the early stage of rainfall is an effective means to control heavy metal pollution.
Keywords:
Heavy Metal; Pavement Runoff; Emission Characteristics; Flush Effect; PollutantReferences
[1] Kayhanian M, Fruchtman B D, Gulliver J S, et al. Review of highway runoff characteristics: Comparative analysis and universal implications. Water Research, 2012, 46: 6609-6624.
[2] Sansalone J J, Bu chberger S G. Partitioning and first flush of metals in urban roadway storm water. Journal of Environmental Engineering, 1997, 123(2): 134-143.
[3] Drapper D, Tom linson R, Williams P. Pollutant concentrations in road runoff Southeast Queensland case study. Journal of Environmental Engineering, 2000, 126(4): 313-320.
[4] Ellis J B, Revitt D M. The contribution of highway surfaces to urban stormwater sediments and metal loadings. The Science of Total Environment, 1987, 59(1): 339-349.
[5] American Public Health Association, American Water Works Association, Water Environment Federation. Standard methods for the Examination of Water and Wastewater, 19th ed. Washington, DC: Apha-Awwa-Wef, 1995.
[6] Yousef Y A, Harper H H, Wisem an L P, et al. Consequential Species of Heavy Metals in Highway Runoff. Washington, D C: Transportation Research Board, 1985: 56-62.
[7] Chen Ying, Zhao Jianqiang, Hu Bo, et al. First flush effect of urban trunk road runoff in Xi’an (in Chinese). Chinese Journal of Environmental Engineering, 2012, 6(3): 930-936.
[8] Lee J H, Bang K W. Characterization of urban stormwater runoff. Water Research, 2000, 34(6): 1773-1780.
[9] Bertrand-Krajewski Jean-Luc, Chebbo G, Saget A. Distribution of pollutant mass vs volume in stormwater discharges and the first flush phenomenon. Water Research, 1998, 32(8): 2341-2356.
[10] Gupta K, Saula J. Specific relationships for the first flush load in combined sewer flows. Water Research, 1996, 30(5): 1244-1252.
[11] Deletic A B, Maksimovic C T. Evaluation of water quality factors in storm runoff from paved areas. Journal of Environmental Engineering, 1998, 24(9): 869-879.
[12] Vorreiter L, Hickey C. Incidence of the first flush phenomenon in catchments of the Sydney region. Australia National Conference Publication, Institution of Engineers, 1994: 359-364.
[13] Wanielista M P, Yousef Y A. Stormwater Management. New York, USA: John Wiley and Sons, 1993.
[14] Zhang Wei, Zhang Shucai, Yue Dapan, et al. Study on PAHs concentrations in urban road runoff in Beijing (in Chinese). Acta Scientiae Circumstantiae, 2008, 28(1): 160-167.
[15] Gan Huayang, Zhuo Muning, Li Dingqiang, et al. Characteristics of Heavy Metal Pollution in Road Surface Runoff (in Chinese). Urban Environment & Urban Ecology, 2007, 20(3): 34-37.
[16] HUANG Jin-liang, DU Peng-fei, Ao Chi-tan, et al. Characteristics of urban runoff in Macau (in Chinese). China Environmental Science (in Chinese), 2006, 26(4): 469-473.
[17] Md Tariqul Islam Shajib, Hans Christian Bruun Hansen, Tao Liang, et al. Metals in surface specific urban runoff in Beijing. Environmental Pollution, 2019, 248: 584-598.
[18] Jin Zhang, Xun Wang, Yu Zhu, et al. The influence of heavy metals in road dust on the surface runoff quality: Kinetic, isotherm, and sequential extraction investigations. Ecotoxicology and Environmental Safety, 2019, 176: 270-278.
[19] Frances J. Charters, Thomas A. Cochrane, Aisling D. O'Sullivan. Untreated runoff quality from roof and road surfaces in a low intensity rainfall climate. Science of The Total Environment, 2016, 550: 265-272.
[20] Carlos Zafra, Javier Temprano, Joaquín Suárez. A simplified method for determining potential heavy metal loads washed-off by stormwater runoff from road-deposited sediments. Science of The Total Environment, 2017, 601-602: 260-270.