北京市密云区道路扬尘排放特征及融雪剂使用的影响  

Characteristics of road dust emission in Miyun,Beijing and the influence of snowmelt agent

作　　者：崔浩然 樊守彬[2,3] 韩力慧[1] 李婷婷[2,3] 曲松[2,3] 刘俊芳 CUI Haoran;FAN Shoubin;HAN Lihui;LI Tingting;QU Song;LIU Junfang(Key Laboratory of Beijing on Regional Air Pollution Control,College of Environmental and Energy Engineering,Beijing University of Technology,Beijing 100124;Beijing Municipal Research Institute of Environmental Protection,Beijing 100037;National Engineering Research Center of Urban Environmental Pollution Control,Beijing 100037)

机构地区：[1]北京工业大学环境与能源工程学院,区域大气复合污染防治北京市重点实验室,北京100124 [2]北京市环境保护科学研究院,北京100037 [3]国家城市环境污染控制工程技术研究中心,北京100037

出　　处：《环境污染与防治》2021年第8期1016-1021,共6页Environmental Pollution & Control

基　　金：北京市科技计划项目(No.Z191100009119011);大气重污染成因与治理攻关项目(No.DQGG0201)。

摘　　要：采用车载移动监测法于2019年1—12月对北京市密云区内道路进行每月道路尘负荷监测,计算了道路扬尘排放因子、排放强度和排放量,探究了平原区路面残留的融雪剂对道路尘负荷和扬尘排放的影响。结果表明,不同类型道路尘负荷呈现出村道>乡道>县道>国道>省道的特征。不同类型道路的总悬浮颗粒物(TSP)、PM 10和PM 2.5年排放量分别为23060、4426、1071 t/a。对比平原区和山区道路尘负荷和扬尘排放特征发现,1—11月山区道路尘负荷均高于平原区,而12月平原区因有融雪剂残留导致平原区道路尘负荷高于山区;平原区道路扬尘排放因子小于山区,但平原区道路扬尘排放强度和扬尘年排放量大于山区,12月平原区路面残留的融雪剂使得扬尘排放因子、排放强度和排放量均较同为冬季的1、2月高。建议降雪后使用融雪剂要适量,且应及时清除融雪后的路面残留融雪剂。Taking Miyun,Beijing as the object,the vehicle-mounted mobile monitoring method was used to monitor the road dust load from January to December in 2019,the road dust emission factors,emission intensity and emissions were calculated,and the influence of residual snowmelt agent on plain road dust load and dust emissions was explored.Results showed that the road dust load in different types’roads was village road>town road>county roal>state road>province road.TSP,PM 10 and PM 2.5 annual emissions were 23060,4426 and 1071 t/a,respectively.By comparing the road dust load and road dust emission characteristics between the plain area and the mountain area,the road dust load in the mountain area was higher than that in plain area in January to November,but In December the road dust load in the plain area was higher than that in the mountain area because of the residual snowmelt agent.The road dust emission factors in the plain area were smaller than those in the mountain area,but the road dust emission intensity and emissions in the plain area were greater than those in the mountain area.The residual snowmelt agent in the plain area in December made the road dust emission factors,emission intensity and emissions higher than those in January and February in winter.It was recommended to use snowmelt agent moderately and it should be cleared in time.

关 键 词：道路尘负荷 扬尘排放因子 融雪剂 北京市 

分 类 号：X734[环境科学与工程—环境工程]