1
|
Gatmiry ZS, Hafezalkotob A, Khakzar bafruei M, Soltani R. Food web conservation vs. strategic threats: A security game approach. Ecol Modell 2021. [DOI: 10.1016/j.ecolmodel.2021.109426] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
2
|
Wang Z, Hua P, Dai H, Li R, Xi B, Gui D, Zhang J, Krebs P. Influence of surface properties and antecedent environmental conditions on particulate-associated metals in surface runoff. ENVIRONMENTAL SCIENCE AND ECOTECHNOLOGY 2020; 2:100017. [PMID: 36160919 PMCID: PMC9488065 DOI: 10.1016/j.ese.2020.100017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 12/23/2019] [Accepted: 01/18/2020] [Indexed: 05/06/2023]
Abstract
Particulate-associated trace metals have been regarded as an important pollution source for urban surface runoff. Cd, Pb, Cu, Zn and total solids (TS) washed off two different surfaces (low-elevated facade and road surfaces) under two kinds of antecedent environmental conditions (dry and snow-melting) were determined in this study. Wet-vacuuming sweeping (WVS) and surface washing (SW) methods, representing the maximum pollution potential and common rainfall-induced wash-off condition respectively, were used to collect the particulate matters. The result shows that the wash-off concentrations of trace metals were found in the order of Cd (2.28 ± 2.08 μg/l) < Pb (435.85 ± 412.61 μg/l) < Cu (0.93 ± 0.61 mg/l) < Zn (2.52 ± 2.30 mg/l). The snow-melting process had a considerable influence on the wash-off concentrations of the trace metals on both road and facade surfaces. It reduced >38% and >79% of metals and TS concentrations in the facade surface and road surface runoff respectively. The wash-off concentrations of Cd, Cu, and Zn on the road surface 45-780% higher than those on the facade surfaces. The sensitivity analysis based on the Bayesian network indicates that the wash-off concentrations of metals were mainly dependent on the antecedent environmental conditions or the surface properties while the sampling methods had a minor influence. Therefore, to accurately model the pollutant migration in the surface runoff requires an improving method considering different surfaces and antecedent environment conditions.
Collapse
Affiliation(s)
- Zhenyu Wang
- Institute of Urban Water Management, Technische Universität Dresden, 01062, Dresden, Germany
| | - Pei Hua
- The Environmental Research Institute, MOE Key Laboratory of Environmental Theoretical Chemistry, South China Normal University, 510006, Guangzhou, China
| | - Heng Dai
- Institute of Groundwater and Earth Sciences, Jinan University, 510632, Guangzhou, China
| | - Rui Li
- State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
| | - Beidou Xi
- State Environmental Protection Key Laboratory of Simulation and Control of Groundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
| | - Dongwei Gui
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, 830011, Xinjiang, China
| | - Jin Zhang
- Institute of Groundwater and Earth Sciences, Jinan University, 510632, Guangzhou, China
- Corresponding author.
| | - Peter Krebs
- Institute of Urban Water Management, Technische Universität Dresden, 01062, Dresden, Germany
| |
Collapse
|