Imperial College London
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DrDavidGreen

Faculty of Medicine, School of Public Health

Senior Research Fellow
 
 
 
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d.green

 
 
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Location

 

Sir Michael Uren HubWhite City Campus

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Summary

 

Publications

Citation

BibTex format

@article{Twigg:2023:10.1016/j.atmosenv.2023.120148,
author = {Twigg, MM and Di, Marco CF and McGhee, EA and Braban, CF and Nemitz, E and Brown, RJC and Blakley, KC and Leeson, SR and Sanocka, A and Green, DC and Priestman, M and Riffault, V and Bourin, A and Minguillón, MC and Via, M and Ovadnevaite, J and Ceburnis, D and O'Dowd, C and Poulain, L and Stieger, B and Makkonen, U and Rumsey, IC and Beachley, G and Walker, JT and Butterfield, DM},
doi = {10.1016/j.atmosenv.2023.120148},
journal = {Atmospheric Environment},
title = {The potential of high temporal resolution automatic measurements of PM2.5 composition as an alternative to the filter-based manual method used in routine monitoring},
url = {http://dx.doi.org/10.1016/j.atmosenv.2023.120148},
volume = {315},
year = {2023}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Under the EU Air Quality Directive (AQD) 2008/50/EC member states are required to undertake routine monitoring of PM2.5 composition at background stations. The AQD states for PM2.5 speciation this should include at least: nitrate (NO3−), sulfate (SO42−), chloride (Cl−), ammonium (NH4+), sodium (Na+), potassium (K+), magnesium (Mg2+), calcium (Ca2+), elemental carbon (EC) and organic carbon (OC). Until 2017, it was the responsibility of each country to determine the methodology used to report the composition for the inorganic components of PM2.5. In August 2017 a European standard method of measurement of PM2.5 inorganic chemical components (NO3−, SO42−, Cl−, NH4+, Na+, K+, Mg2+, Ca2+) as deposited on filters (EN16913:2017) was published. From August 2019 this then became the European standard method. This filter method is labour-intensive and provides limited time resolution and is prone to losses of volatile compounds. There is therefore increasing interest in the use of alternative automated methods. For example, the UK reports hourly PM2.5 chemical composition using the Monitor for AeRosols and Gases in Ambient air (MARGA, Metrohm, NL). This study is a pre-assessment review of available data to demonstrate if or to what extent equivalence is possible using either the MARGA or other available automatic methods, including the Aerosol Chemical Speciation Monitor (ACSM, Aerodyne Research Inc. US) and the Ambient Ion Monitor (AIM, URG, US).To demonstrate equivalence three objectives were to be met. The first two objectives focused on data capture and were met by all three instruments. The third objective was to have less than a 50% expanded uncertainty compared to the reference method for each species. Analysis of this objective was carried out using existing paired datasets available from different regions around the world. It was found that the MARGA (2006–2019 model) had the potential to demonstrate equivalence for all spec
AU  - Twigg,MM
AU  - Di,Marco CF
AU  - McGhee,EA
AU  - Braban,CF
AU  - Nemitz,E
AU  - Brown,RJC
AU  - Blakley,KC
AU  - Leeson,SR
AU  - Sanocka,A
AU  - Green,DC
AU  - Priestman,M
AU  - Riffault,V
AU  - Bourin,A
AU  - Minguillón,MC
AU  - Via,M
AU  - Ovadnevaite,J
AU  - Ceburnis,D
AU  - O'Dowd,C
AU  - Poulain,L
AU  - Stieger,B
AU  - Makkonen,U
AU  - Rumsey,IC
AU  - Beachley,G
AU  - Walker,JT
AU  - Butterfield,DM
DO  - 10.1016/j.atmosenv.2023.120148
PY  - 2023///
SN  - 1352-2310
TI  - The potential of high temporal resolution automatic measurements of PM2.5 composition as an alternative to the filter-based manual method used in routine monitoring
T2  - Atmospheric Environment
UR  - http://dx.doi.org/10.1016/j.atmosenv.2023.120148
UR  - http://hdl.handle.net/10044/1/108055
VL  - 315
ER  -
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