Air pollutant concentrations

About: Air pollutant concentrations is a research topic. Over the lifetime, 1652 publications have been published within this topic receiving 36138 citations.

The study of long-term air pollution characteristic in Wuhan, China

Abstract: Air pollution is one of the most concerned problems both for researchers and the public. In this study, we collected long-term observation of mass concentrations of PM 10 , PM 2.5 , and other gaseous pollutants in Wuhan, China, including sulphur dioxide (SO 2 ), nitrogen oxide (NO x ), from 2011 to 2014. The time series analysis is utilized to analyze the long-term trends of particulate matter (PM) and gaseous pollutants. Results show that the concentrations of PM and SO 2 have the trends to decrease due to the efforts of emission reduction and energy optimization. However, with the increase number of motor vehicles, the upward momentum of NO x will not be reduced. The joint efforts of the government and the public are still needed. And, the seasonal characteristic for most pollutants is obvious. At last, we demonstrate the linear relationship between PM 10 and PM 2.5 , and reveal that PM 2.5 serves as the primary pollutant in Wuhan region, which should be paid more attention.

Correlations between air pollutant concentrations in selected urban and rural areas in poland

Abstract: Correlations between concentrations of selected air pollutants were analyzed in different areas in central Poland from 2012-2016. Three neighboring voivodeships (Lower Silesian, Lodz, and Masovian), were selected for which specific measurement locations were designated in urban and rural areas. The characteristics of the location of monitoring stations allowed to distinguish the following types of measurement stations: “urbantransport”, “urban-background\", \"suburban-background\", \"town-background\", and \"rural-background\". Therefore, using the Pearson's linear correlation coefficient, it was possible to analyze the interrelations between the occurrence of air pollution in various types of areas. It was found that the coefficient changed along with the type of area. Moreover, it turned out that the coefficient decreased in each voivodeship along with a decrease in the population density of the analyzed areas. In addition, concentrations of various air pollutants in given areas were compared. Also, it was observed that the strongest correlations occur between the results of calculations from measurement stations located in the same province.