Application of C-14 analyses to source apportionment of carbonaceous PM2.5 in the UK

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Application of C-14 analyses to source apportionment of carbonaceous PM2.5 in the UK. / Heal, MR; Naysmith, P; Cook, GT; Xu, S; Duran, TR; Harrison, Roy.

In: Atmospheric Environment, Vol. 45, No. 14, 01.05.2011, p. 2341-2348.

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Heal, MR ; Naysmith, P ; Cook, GT ; Xu, S ; Duran, TR ; Harrison, Roy. / Application of C-14 analyses to source apportionment of carbonaceous PM2.5 in the UK. In: Atmospheric Environment. 2011 ; Vol. 45, No. 14. pp. 2341-2348.

Bibtex

@article{f0598d1fdece4af595116632554e21e5,
title = "Application of C-14 analyses to source apportionment of carbonaceous PM2.5 in the UK",
abstract = "Determination of the radiocarbon (C-14) content of airborne particulate matter yields insight into the proportion of the carbonaceous material derived from fossil and contemporary carbon sources. Daily samples of PM2.5 were collected by high-volume sampler at an urban background site in Birmingham, UK, and the fraction of C-14 in both the total carbon, and in the organic and elemental carbon fractions. determined by two-stage combustion to CO2, graphitisation and quantification by accelerator mass spectrometry. OC and EC content was also determined by Sunset Analyzer. The mean fraction contemporary TC in the PM2.5 samples was 0.50 (range 0.27-0.66, n = 26). There was no seasonality to the data, but there was a positive trend between fraction contemporary TC and magnitude of SOC/TC ratio and for the high values of these two parameters to be associated with air-mass back trajectories arriving in Birmingham from over land. Using a five-compartment mass balance model on fraction contemporary carbon in OC and EC, the following average source apportionment for the TC in these PM2.5 samples was derived: 27% fossil EC: 20% fossil OC; 2% biomass EC; 10% biomass OC: and 41% biogenic OC. The latter category will comprise, in addition to BVOC-derived SOC, other non-combustion contemporary carbon sources such as biological particles, vegetative detritus, humic material and tyre wear. The proportion of total PM2.5 at this location estimated to derive from BVOC-derived secondary organic aerosol was 9-29%. The findings from this work are consistent with those from elsewhere in Europe and support the conclusion of a significant and ubiquitous contribution from non-fossil biogenic sources to the carbon in terrestrial aerosol. (C) 2011 Elsevier Ltd. All rights reserved.",
keywords = "SOA, Carbon-14, BVOC, PM2.5, Particulate mater, Source apportionment",
author = "MR Heal and P Naysmith and GT Cook and S Xu and TR Duran and Roy Harrison",
year = "2011",
month = may,
day = "1",
doi = "10.1016/j.atmosenv.2011.02.029",
language = "English",
volume = "45",
pages = "2341--2348",
journal = "Atmospheric Environment",
issn = "1352-2310",
publisher = "Elsevier",
number = "14",

}

RIS

TY - JOUR

T1 - Application of C-14 analyses to source apportionment of carbonaceous PM2.5 in the UK

AU - Heal, MR

AU - Naysmith, P

AU - Cook, GT

AU - Xu, S

AU - Duran, TR

AU - Harrison, Roy

PY - 2011/5/1

Y1 - 2011/5/1

N2 - Determination of the radiocarbon (C-14) content of airborne particulate matter yields insight into the proportion of the carbonaceous material derived from fossil and contemporary carbon sources. Daily samples of PM2.5 were collected by high-volume sampler at an urban background site in Birmingham, UK, and the fraction of C-14 in both the total carbon, and in the organic and elemental carbon fractions. determined by two-stage combustion to CO2, graphitisation and quantification by accelerator mass spectrometry. OC and EC content was also determined by Sunset Analyzer. The mean fraction contemporary TC in the PM2.5 samples was 0.50 (range 0.27-0.66, n = 26). There was no seasonality to the data, but there was a positive trend between fraction contemporary TC and magnitude of SOC/TC ratio and for the high values of these two parameters to be associated with air-mass back trajectories arriving in Birmingham from over land. Using a five-compartment mass balance model on fraction contemporary carbon in OC and EC, the following average source apportionment for the TC in these PM2.5 samples was derived: 27% fossil EC: 20% fossil OC; 2% biomass EC; 10% biomass OC: and 41% biogenic OC. The latter category will comprise, in addition to BVOC-derived SOC, other non-combustion contemporary carbon sources such as biological particles, vegetative detritus, humic material and tyre wear. The proportion of total PM2.5 at this location estimated to derive from BVOC-derived secondary organic aerosol was 9-29%. The findings from this work are consistent with those from elsewhere in Europe and support the conclusion of a significant and ubiquitous contribution from non-fossil biogenic sources to the carbon in terrestrial aerosol. (C) 2011 Elsevier Ltd. All rights reserved.

AB - Determination of the radiocarbon (C-14) content of airborne particulate matter yields insight into the proportion of the carbonaceous material derived from fossil and contemporary carbon sources. Daily samples of PM2.5 were collected by high-volume sampler at an urban background site in Birmingham, UK, and the fraction of C-14 in both the total carbon, and in the organic and elemental carbon fractions. determined by two-stage combustion to CO2, graphitisation and quantification by accelerator mass spectrometry. OC and EC content was also determined by Sunset Analyzer. The mean fraction contemporary TC in the PM2.5 samples was 0.50 (range 0.27-0.66, n = 26). There was no seasonality to the data, but there was a positive trend between fraction contemporary TC and magnitude of SOC/TC ratio and for the high values of these two parameters to be associated with air-mass back trajectories arriving in Birmingham from over land. Using a five-compartment mass balance model on fraction contemporary carbon in OC and EC, the following average source apportionment for the TC in these PM2.5 samples was derived: 27% fossil EC: 20% fossil OC; 2% biomass EC; 10% biomass OC: and 41% biogenic OC. The latter category will comprise, in addition to BVOC-derived SOC, other non-combustion contemporary carbon sources such as biological particles, vegetative detritus, humic material and tyre wear. The proportion of total PM2.5 at this location estimated to derive from BVOC-derived secondary organic aerosol was 9-29%. The findings from this work are consistent with those from elsewhere in Europe and support the conclusion of a significant and ubiquitous contribution from non-fossil biogenic sources to the carbon in terrestrial aerosol. (C) 2011 Elsevier Ltd. All rights reserved.

KW - SOA

KW - Carbon-14

KW - BVOC

KW - PM2.5

KW - Particulate mater

KW - Source apportionment

U2 - 10.1016/j.atmosenv.2011.02.029

DO - 10.1016/j.atmosenv.2011.02.029

M3 - Article

VL - 45

SP - 2341

EP - 2348

JO - Atmospheric Environment

JF - Atmospheric Environment

SN - 1352-2310

IS - 14

ER -