Analysis of transport path and source distribution of winter air pollution in Shenyang

Abstract

Air pollution is one of the most serious environmental problems faced by mankind. It is regional and highly complex, and it is more prominent in China. With the development of air quality management in China, the research on cross-regional transmission of air pollutants is particularly important. This paper reports on pollution characteristics, transport path, and distribution of pollution sources of major contaminants in Shenyang. For this purpose, pollution-monitoring data were gathered from November 2017 to March 2018. Data were analyzed using the HYSPLIT back trajectory model, the potential source contribution function (PSCF), and the concentration weighted trajectory (CWT) model. Results indicated that PM2.5 was the main pollutant in Shenyang during the study period. Air pollution was mainly affected by coal combustion, traffic emissions, and long-distance transmission. Among the 11 monitoring points, the pollution of Shenliaoxilu was relatively serious. Mongolia, eastern Inner Mongolia, northwestern Jilin, and most of Liaoning were the main potential sources of PM2.5 in Shenyang during the winter.

An Assessment of the Multidimensional Drivers and Determinants of Public Risk Perception of and Behaviors Related to Exposure to Air Pollution in Serbia

“…Likewise, Molozhnikova et al [32] analyzed the snow-pollution levels for the same region and found that emissions from the larger cities were transferred to distances of tens of kilometers by prevailing winds. The cross-regional transport of air pollutants by air flows from cities to rural backgrounds and even between cities contributes significantly to local air quality [33][34][35][36]. That raises a complex question about what underlies people's responses to environmental risks.…”