College of Chemistry and Environmental Engineering, Shenzhen University, 518060 Shenzhen, China; Shenzhen Key Laboratory of Environmental Chemistry and Ecological Remediation, 518060 Shenzhen, China; Science and Engineering Faculty, Queensland University of Technology (QUT), Brisbane, Australia.
College of Chemistry and Environmental Engineering, Shenzhen University, 518060 Shenzhen, China; Shenzhen Key Laboratory of Environmental Chemistry and Ecological Remediation, 518060 Shenzhen, China.
Sci Total Environ. 2019 Feb 25;653:589-596. doi: 10.1016/j.scitotenv.2018.10.428. Epub 2018 Nov 3.
Petroleum hydrocarbons are a toxic pollutant group, primarily including volatile organic compounds (VOC), semi-volatile organic compounds (SVOC) and non-volatile organic compounds (NVOC). These pollutants can be accumulated on urban roads during dry periods and then washed-off by stormwater runoff in rainy days. Unlike heavy metals and polycyclic aromatic hydrocarbons, petroleum hydrocarbons have not received an equal attention in the field of stormwater pollutant processes. This paper investigated characteristics of VOC, SVOC and NVOC pollutant loads deposited on urban roads and their influential factors using a forward stepwise regression and PROMETHEE-GAIA analysis techniques. The results indicate that the loads deposited on urban roads were NVOC > SVOC > VOC. It is also noted that the degrees of factors in influencing petroleum hydrocarbons deposited on urban roads did not equal and their order was total solids > land use type > vehicular traffic > roughness of road surfaces. The research results also showed that petroleum hydrocarbons on urban road surfaces tend to be source limiting rather than transport limiting. These outcomes can contribute to petroleum hydrocarbons polluted stormwater management, such as treatment system design and stormwater modelling approach improvement.
石油烃是一种有毒的污染物群体，主要包括挥发性有机化合物（VOC）、半挥发性有机化合物（SVOC）和非挥发性有机化合物（NVOC）。这些污染物在干燥时期会在城市道路上积累，然后在雨天被雨水径流冲刷掉。与重金属和多环芳烃不同，石油烃在雨水污染物处理领域并没有得到同等的关注。本研究采用逐步回归和 PROMETHEE-GAIA 分析技术，研究了城市道路上沉积的 VOC、SVOC 和 NVOC 污染物负荷的特征及其影响因素。结果表明，城市道路上沉积的负荷为 NVOC>SVOC>VOC。此外，还注意到影响城市道路石油烃沉积的因素的程度并不相等，其顺序为总固体>土地利用类型>交通量>路面粗糙度。研究结果还表明，城市道路表面的石油烃趋于源限制而不是传输限制。这些结果有助于受石油烃污染的雨水管理，如处理系统设计和雨水模型改进。
