Study on Regions Non-point Source Pollution at Different Management Level in Longgang District of Shenzhen

2019 2nd International Conference of Green Buildings and Environmental Management

生态环境科学

Liu, Yanting^1 ; Liang, Qiong^1 ; Liu, Yun^1 ; Song, Haolu^1^2 ; Li, Xuyong^2

Beijing Collab. Innovation Center for Eco-environmental Improvement with Forestry and Fruit Trees, College of Bio-Science and Resource Environment, Beijing University of Agriculture, Beijing

102206, China^1

State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing

100085, China^2

关键词: Environmental quality standards;    Highly-correlated;    Industrial area;    Industrial zones;    Management level;    Non-point source pollution;    Surface streets;    Transportation zones;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/310/5/052008/pdf
DOI  :  10.1088/1755-1315/310/5/052008

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

In order to understand the regional non-point source pollution at different management level in Longgang District of Shenzhen City, the commercial and residential zone, the cultural and educational zone, the transportation zone, the industrial zone and the urban village were chosen as sampling sites. The surface street dust and rainfall runoff samples were collected after investigating the management levels and the correlation between the management level and street dust or rainfall runoff was analysed. The results showed that the street dust accumulation was the highest in the transportation zone (25 g/m2), which was at the lowest management level. However, the best-managed commercial and residential zone and the cultural and educational zone had a street dust accumulation of about 8 g/m2, which was higher than those in the industrial area and urban village (3.5 g/m2). This may be due to the different size of the crowed flow. In each zone, the large-sized particles contribute a major proportion of the street dust. The N and P contents in the dust was highly correlated with the particle size, but showed no correlation with the management level. The correlation was also observed between the pollutant contents in rainfall runoff and the management level. The low-managed transport zone had the highest pollutant contents, with most of the indicators exceeded the values limited by the Environmental Quality Standard for Surface Water (GB 3838-2002, class V criteria)