Temporal and spatial variations characteristics of atmospheric particulate matter in Hubei province, China
- Received Date: 15/03/2017
- Accepted Date: 17/10/2016
- Available Online: 26/08/2017
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Key words:
- atmospheric particulates /
- temporal and spatial patterns /
- climatic conditions /
- pollutants emission
Abstract: The analysis of spatial and temporal variations of atmospheric particulate matter is significant for atmosphere pollution control, early warning and forecast. In this study, the spatial and temporal variations of PM10 and PM2.5 in Hubei province were studied through PM10 and PM2.5 per hour concentration data which collected from 53 monitoring sites distributed in 13 main cities during January 2015 to December 2015.The results showed that there were obvious spatial heterogeneous in the distribution of PM10 and PM2.5 concentrations in east-west and north-south, with lowest in the west region, highest in the central region, and middle in east region. Also, the PM10 and PM2.5 concentrations in all cities changed dramatically with time, and there was a pattern of PM10 and PM2.5 concentrations in summer 10 and PM2.5 concentrations in autumn 10 and PM2.5 concentrations in spring 10 and PM2.5 concentrations in winter. The lowest PM10 and PM2.5 concentrations occured in the summer and the highest occured in January. Correlation analysis indicated that there were a significant negative correlation between PM10 and PM2.5 concentrations and precipitation and temperature, and sin significant postive correlation existed between PM10 and PM2.5 concentrations and human factors, such as construction area, motor vehicle ownership, freight and passenger traffic, the per capita GDP and per capita output.