NDLI: Size-Segregated Atmospheric Particle Mass Concentration in Urban Areas in Luxembourg

Content Provider	Springer Nature Link
Author	Buchholz, Saskia Krein, Andreas Junk, Jürgen Heinemann, Günther
Copyright Year	2014
Abstract	This study examines the dependencies between emission sources, meteorological conditions, and particle mass concentration on different temporal and spatial scales. Particulate matter (PM)$_{10}$, PM$_{2.5}$, and PM$_{1}$ were measured in an urban area in Southwest Luxembourg during two field campaigns carried out between 2008 and 2010. Data sampling at various suburban and urban sites accounts for different emission sources and human exposure to particle pollution. Long-range transport and regional source characteristics dominate PM$_{1}$ mass concentrations resulting in high Pearson correlation coefficients (0.77–0.96) and low coefficients of divergence (0.12–0.18) between measurement stations. In comparison, the coarse particle fractions PM$_{10}$−PM$_{2.5}$ and PM$_{2.5}$−PM$_{1}$ show higher spatial gradients between stations, which are mainly governed by local sources with lower Pearson correlation coefficients (0.39–0.70) and higher coefficients of divergence (0.21–0.61). The PM$_{10}$−PM$_{2.5}$ particle fraction is largely influenced by road transport characteristics reproducing weekday and daily cycles. PM$_{10}$ mass concentration during winter is dominated by the finer particle fractions, due to domestic heating, whereas concentrations during spring and summer are mostly coarse particles, originating from pollen and windblown dust. Particle mass concentrations of different size fractions were sensitive to dispersion. Unstable atmospheric boundary conditions during the day caused a shift of the PM$_{2.5}$ /PM$_{10}$ and PM$_{1}$/PM$_{2.5}$ ratios to smaller values in comparison to neutral boundary conditions. A comparison between large-scale clean air and pollution episodes showed differences in the daily cycle of PM$_{10}$−PM$_{2.5}$ resulting from local emission sources, transport, and removal.
Starting Page	1
Ending Page	17
Page Count	17
File Format	PDF
ISSN	00496979
Journal	Water, Air, and Soil Pollution
Volume Number	225
Issue Number	4
e-ISSN	15732932
Language	English
Publisher	Springer International Publishing
Publisher Date	2014-03-12
Publisher Place	Cham
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Long-range transport PM$_{10}$ PM$_{2.5}$ PM$_{1}$ Pollution episodes Meteorological parameters Traffic Environment Water Quality/Water Pollution Atmospheric Protection/Air Quality Control/Air Pollution Soil Science & Conservation Hydrogeology Climate Change/Climate Change Impacts
Content Type	Text
Resource Type	Article
Subject	Ecological Modeling Environmental Chemistry Pollution Environmental Engineering Water Science and Technology

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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