摘要
对珠江三角洲地区不同等级道路共采集了65个道路扬尘样品,并调研了道路的车流量、车辆构成和道路长度等有关活动水平数据,采用美国环保署推荐的AP-42方法估算了该地区不同等级道路扬尘排放因子和排放量,并分析了道路扬尘排放的时空特征与不确定性范围.结果表明：高速公路、一级、二级、三级和四级道路尘负荷分别为1.05 g·m-2、0.99 g·m-2、1.30 g·m-2、1.35 g·m-2和1.45 g·m-2;不同等级道路扬尘总悬浮颗粒物（Total Suspended Particulate,TSP）、PM10和PM2.5的平均排放因子分别为8.32 g·VKT-1（Grams per Vehicle Kilometer Traveled）、1.60 g·VKT-1和0.39 g·VKT-1,对应的排放量分别为2755.1×103t、528.8×103t和127.9×103t,其定量不确定性范围分别为-91.7%~175.1%、-91.6%~178.9%及-91.5%~176.5%.
65 fugitive dust samples from different types of paved roads in Pearl River Delta （PRD） region were collected. Based on the collected activity data of vehicle flows, vehicle fleets and road length, 2010-based road fugitive dust emission factors and inventories of PRD were developed following AP- 42 methodologies recommended by the USEPA, the spatial, temporal characteristics, and uncertainty of road fugitive dust emissions were analyzed. The results show that the road silt loadings of express way, national Level I, Level II, Level lII and Level IV roads are 1.05 g · m ^- 2,0.99 g · m ^- 2,1.30 g · m ^- 2,1.35 g · m ^- 2 and 1.45 g · m ^- 2 ; the average fugitive dust emission factors of Total Suspended Particulate （TSP） , PM10 and PM2.5 are 8.32 g. VKT - 1,1.60 g. VKT - 1 and 0. 39 g·VKT - l ; while the emission inventories and their quantitative uncertainties of TSP, PMI0 and PM2.5 are 2755.1 x 103 t （ -91.7% ~ 175.1% ） ,528.8×10^3 t （ -91.6% ~ 178.9% ） and 127.9 × 10^3 t （ -91.5% ~ 176.5% ）, respectively.
出处
《环境科学学报》
CAS
CSCD
北大核心
2013年第10期2657-2663,共7页
Acta Scientiae Circumstantiae
基金
中国科学院战略性先导科技专项大气灰霾追因与控制之大气灰霾溯源--大气污染源清单完善及校核子课题(No.XDB05020303)~~
关键词
珠江三角洲
道路扬尘
排放因子
排放清单
Pearl River Delta
road fugitive dust
emission factors
emission inventory
