Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/80047
Title: The impact of meteorological factors on PM2.5 variations in Hong Kong
Authors: Li, X 
Feng, YJ
Liang, HY 
Issue Date: 2017
Publisher: Institute of Physics Publishing
Source: IOP conference series : earth and environmental science, 2017, v. 78, no. 1, 12003, p. 1-11 How to cite?
Journal: IOP conference series : earth and environmental science 
Abstract: This paper aims to explore the impact of meteorological factors on PM2.5 concentrations in Hong Kong. The PM2.5 and meteorology data including temperature, pressure, rainfall, relative humidity (RH), wind speed and wind direction from January to December of 2013 were collected. The correlation analysis between PM2.5 and meteorological factors were conducted for each month and season. The meteorology data were classified into several intervals and the mean PM2.5 concentrations for each interval were calculated to see the tendency. According to the correlation analysis results, the PM2.5 concentrations have a positive relationship with pressure with correlation coefficients 0.507 while have negative relationships with temperature, RH, rainfall, wind speed with correlation coefficients -0.512, -0.237, -0.524, -0.284, respectively. In addition, the wind direction influence PM2.5 concentrations through affecting the spreading direction of PM2.5. The north wind in winter increased the PM2.5 in Hong Kong while the south wind in summer decrease the PM2.5. Therefore, the meteorological factors affect the aggregation, diffusion, spread of PM2.5. They have a leading impact on PM2.5 concentrations when the domestic emission stays stable.
Description: 2017 8th International Conference on Environmental Science and Technology, ICEST 2017, 12-14 June 2017
URI: http://hdl.handle.net/10397/80047
ISSN: 1755-1307
DOI: 10.1088/1755-1315/78/1/012003
Rights: Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence (https://creativecommons.org/licenses/by/3.0/). Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Published under licence by IOP Publishing Ltd
The following publication Li, X., Feng, Y. J. & Liang, H. Y. (2017). The impact of meteorological factors on PM2.5 variations in Hong Kong. IOP conference series : earth and environmental science, 2017, 78(1), 12003, 1-11 is available at https://dx.doi.org/10.1088/1755-1315/78/1/012003
Appears in Collections:Conference Paper

Files in This Item:
File Description SizeFormat 
Li_Meteorological_Factors_PM2.5.pdf1.14 MBAdobe PDFView/Open
Access
View full-text via PolyU eLinks SFX Query
Show full item record
PIRA download icon_1.1View/Download Contents

SCOPUSTM   
Citations

2
Last Week
0
Last month
Citations as of Feb 13, 2019

WEB OF SCIENCETM
Citations

2
Last Week
0
Last month
Citations as of Feb 12, 2019

Page view(s)

7
Citations as of Feb 12, 2019

Download(s)

1
Citations as of Feb 12, 2019

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.