Li Ting-Kun, Feng Yin-Chang, Bi Xiao-Hui, Zhang Yu-Fen, Wu Jian-Hui
China Meteorological Administration-Nankai University Cooperative Laboratory for Atmospheric Environment-Health Research, State Environmental Protection Key Laboratory of Urban Ambient Air Particulate Matter Pollution Prevention and Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China.
Huan Jing Ke Xue. 2022 Mar 8;43(3):1323-1331. doi: 10.13227/j.hjkx.202107092.
Fugitive dust poses an important contribution to urban air particulate matter in China. To further improve the level of dust pollution prevention and control, the emission and contribution characteristics of urban fugitive dust were summarized; the main causes of dust pollution were analyzed; and the key links, key indicators, and main measures for prevention and control were clarified, so as to further improve the concept of "accurate dust control." Among all types of fugitive dust sources, road dust and construction dust were the main emission and contribution sources, among which road dust was more prominent. Production activities, vehicle disturbances, and wind erosion were the main dust-generating links of various dust sources. Silt loading was taken as the key control index for road dust prevention and control, whereas silt loading and bare soil (or material) areas were taken as the key control index for construction and other dust sources. Around the key indicators, three main ways to control the road dust and six main measures to control the construction and other dust sources were defined. In addition, some suggestions on the necessary supporting measures for dust control were put forward, so as to provide a comprehensive and beneficial reference for the practical application of dust control in Chinese cities.
扬尘对中国城市大气颗粒物有重要贡献。为进一步提高扬尘污染防治水平，总结了城市扬尘的排放及贡献特征，分析了扬尘污染的主要成因，明确了防治的关键环节、关键指标及主要措施，以进一步完善“精准控尘”理念。在各类扬尘源中，道路扬尘和施工扬尘是主要排放及贡献源，其中道路扬尘更为突出。生产活动、车辆扰动和风力侵蚀是各类扬尘源的主要产尘环节。将积尘负荷作为道路扬尘防治的关键控制指标，而将积尘负荷和裸土（或物料）面积作为施工及其他扬尘源的关键控制指标。围绕关键指标，明确了控制道路扬尘的三种主要方式及控制施工及其他扬尘源的六种主要措施。此外，还提出了一些关于控尘必要配套措施的建议，为中国城市扬尘控制的实际应用提供全面有益的参考。
