Bottom-Up Emission Inventory and Its Spatio-Temporal Distribution from Paved Road Dust Based on Field Investigation: A Case Study of Harbin, Northeast China

Abstract

Road dust is one of the primary sources of particulate matter which has implications for air quality, climate and health. With the aim of characterizing the emissions, in this study, a bottom-up approach of county level emission inventory from paved road dust based on field investigation was developed. An inventory of high-resolution paved road dust (PRD) emissions by monthly and spatial allocation at 1 km × 1 km resolution in Harbin in 2016 was compiled using accessible county level, seasonal data and local parameters based on field investigation to increase temporal-spatial resolution. The results demonstrated the total PRD emissions of TSP, PM10, and PM2.5 in Harbin were 270207 t, 54597 t, 14059 t, respectively. The temporal variation trends of pollutant emissions from PRD was consistent with the characteristics of precipitation, with lower emissions in winter and summer, and higher emissions in spring and autumn. The spatial allocation of emissions has a strong association with Harbin’s road network, mainly concentrating in the central urban area compared to the surrounding counties. Through scenario analysis, positive control measures were essential and effective for PRD pollution. The inventory developed in this study reflected the level of fugitive dust on paved road in Harbin, and it could reduce particulate matter pollution with the development of mitigation strategies and could comply with air quality modelling requirements, especially in the frigid region of northeastern China.

Estimating Particulate Matter Emission from Dust Sources Using ZY-3 Data and GIS Technology—A Case Study in Zhengzhou City, China

“…Followed by Nanjing and Wuhan, the PM emissions of which are about three times as much as Zhengzhou. The length and density of road networks are the primary factors that result in such differences [36]. The PM emission from the construction dust source in Zhengzhou is a little higher than in other cities including Beijing, Wuhan, Tianjin and Nanjing.…”

“…Followed by Nanjing and Wuhan, the PM emissions of which are about three times as much as Zhengzhou. The length and density of road networks are the primary factors that result in such differences [36].…”

Air Quality in the Harbin-Changchun Metropolitan Area in Northeast China: Unique Episodes and New Trends

“…The phenomenon of OBB in HC is very common and has been investigated by many studies [11,22,23,[26][27][28][29][30]. Because of the unique geographical, climate, and anthropogenic characteristics, it is very meaningful to study the composition of air pollutants in HC [31,32].…”