Imperial College London
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DrGaryFuller

Faculty of Medicine, School of Public Health

Senior Lecturer in Air Quality Measurement
 
 
 
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Contact

 

g.fuller Website

 
 
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Location

 

Sir Michael Uren HubWhite City Campus

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Summary

 

Publications

Citation

BibTex format

@article{Ciupek:2021:10.1039/d1em00200g,
author = {Ciupek, K and Quincey, P and Green, DC and Butterfield, D and Fuller, GW},
doi = {10.1039/d1em00200g},
journal = {Environmental Science: Processes and Impacts},
pages = {1949--1960},
title = {Challenges and policy implications of long-term changes in mass absorption cross-section derived from equivalent black carbon and elemental carbon measurements in London and south-east England in 2014-2019},
url = {http://dx.doi.org/10.1039/d1em00200g},
volume = {23},
year = {2021}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Determining the concentration of carbonaceous particles in ambient air is important for climate modelling, source attribution and air quality management. This study presents the difficulties associated with the interpretation of apparent long-term changes in the mass absorption cross section (MAC) of carbonaceous particles in London and south-east England based on equivalent black carbon (eBC) and elemental carbon (EC) measurements between 2014 and 2019. Although these two measurement techniques were used to determine the concentration of carbonaceous aerosols, the concentrations of eBC and EC changed at different rates at all sites, and exhibited different long-term trends. eBC measurements obtained using aethalometer instruments for traffic and urban background sites demonstrated consistent trends, showing decreases in concentrations of up to −12.5% y−1. The EC concentrations showed no change at the urban background location, a similar change to eBC at the traffic site and a significant upward trend of +10% y−1 was observed at the rural site. Despite these differences, the trends in the MAC values decreased at all sites in a similar way, with rates of change from −5.5% y−1 to −10.1% y−1. The different trends and magnitudes of change for the eBC and EC concentrations could lead to uncertainty in quantifying the efficacy of intervention measures and to different conclusions for policy making. This paper provides possible explanations of the observed decrease in MAC values over time.
AU  - Ciupek,K
AU  - Quincey,P
AU  - Green,DC
AU  - Butterfield,D
AU  - Fuller,GW
DO  - 10.1039/d1em00200g
EP  - 1960
PY  - 2021///
SN  - 2050-7895
SP  - 1949
TI  - Challenges and policy implications of long-term changes in mass absorption cross-section derived from equivalent black carbon and elemental carbon measurements in London and south-east England in 2014-2019
T2  - Environmental Science: Processes and Impacts
UR  - http://dx.doi.org/10.1039/d1em00200g
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000723833400001&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - https://pubs.rsc.org/en/content/articlelanding/2021/EM/D1EM00200G
UR  - http://hdl.handle.net/10044/1/93686
VL  - 23
ER  -
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