Svalbard local air contamination by PAHs and nitro- and oxy- PAHs
Polycyclic aromatic hydrocarbons (PAHs) are of great public concern due to their toxicity and potential carcinogenicity. PAHs are listed as chemicals of emerging concern in the Arctic (AMAP, 2016). The coal power plant in Longyearbyen (78°13′N 15°38′E), Svalbard was hypothesized to be a major local...
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ftineris:oai:HAL:ineris-03319944v1 2023-05-15T13:21:37+02:00 Svalbard local air contamination by PAHs and nitro- and oxy- PAHs Drotikova, Tatiana Albinet, Alexandre Halse, Anne Karine Reinardy, Helena C. Ali, Aasim M. Kallenborn, Roland Institut National de l'Environnement Industriel et des Risques (INERIS) Loen, Norway 2020-09-14 https://hal-ineris.archives-ouvertes.fr/ineris-03319944 en eng HAL CCSD ineris-03319944 https://hal-ineris.archives-ouvertes.fr/ineris-03319944 Norwegian Environmental Chemistry Symposium (NECS 2020) https://hal-ineris.archives-ouvertes.fr/ineris-03319944 Norwegian Environmental Chemistry Symposium (NECS 2020), Sep 2020, Loen, Norway [SDE]Environmental Sciences info:eu-repo/semantics/conferenceObject Conference papers 2020 ftineris 2023-04-07T06:56:02Z Polycyclic aromatic hydrocarbons (PAHs) are of great public concern due to their toxicity and potential carcinogenicity. PAHs are listed as chemicals of emerging concern in the Arctic (AMAP, 2016). The coal power plant in Longyearbyen (78°13′N 15°38′E), Svalbard was hypothesized to be a major local source of PAHs. Gaseous and particulate phase air samples were collected in the power plant stack and at 1 km and 6 km transect distance downwind the plant. The sampling campaign was performed in summer when long-range atmospheric transport input is low and thus the coal burning emissions are easier to quantify. The samples were analysed for 16 parent PAHs and 22 nitro- and 8 oxy-PAHs by GC-EI-MS/MS and GCECNI-MS. An emission factor of 2.3 µg/kg coal was estimated for the Σ47 PAHs. The relative distribution of the contaminants was as follows: 66% PAHs, 21% oxy-PAHs, and 13% nitro-PAHs. Approximately 90% of the compounds were found in the gaseous phase, confirming high efficiency of exhaust particles removal by an electrostatic precipitator in the power plant. The PAH levels observed in ambient air of Longyearbyen (Σ15 PAHs ~556 pg/m3) were significantly lower (up to 2 orders of magnitude) compared to rural sites in Europe and China but were about an order of magnitude higher compared to the Canadian Arctic (Alert station) concentrations. Nitro- and oxy-PAH concentrations (Σ22 nitro-PAHs ~32 pg/m3 and Σ7 oxyPAHs ~352 pg/m3) were found at the same order of magnitude as detected at other background Scandinavian (Råö and Pallas) and central European (Košetice) monitoring stations. A multivariate statistical analysis confirmed local coal burning as the source of PAHs, as well as vehicle and marine traffic. Oxy-PAHs and nitro-PAHs also result from reactions of primary PAHs with atmospheric oxidants. Such secondary formation was concluded as an additional source of several nitro-PAHs. However, a preliminary study on the annual distribution of PAHs in Longyearbyen air revealed 2 orders of magnitude higher PAH levels in ... Conference Object AMAP Arctic Longyearbyen Svalbard INERIS: HAL (Institut National de l'Environnement Industriel et des Risques) Arctic Svalbard Longyearbyen Norway |
institution |
Open Polar |
collection |
INERIS: HAL (Institut National de l'Environnement Industriel et des Risques) |
op_collection_id |
ftineris |
language |
English |
topic |
[SDE]Environmental Sciences |
spellingShingle |
[SDE]Environmental Sciences Drotikova, Tatiana Albinet, Alexandre Halse, Anne Karine Reinardy, Helena C. Ali, Aasim M. Kallenborn, Roland Svalbard local air contamination by PAHs and nitro- and oxy- PAHs |
topic_facet |
[SDE]Environmental Sciences |
description |
Polycyclic aromatic hydrocarbons (PAHs) are of great public concern due to their toxicity and potential carcinogenicity. PAHs are listed as chemicals of emerging concern in the Arctic (AMAP, 2016). The coal power plant in Longyearbyen (78°13′N 15°38′E), Svalbard was hypothesized to be a major local source of PAHs. Gaseous and particulate phase air samples were collected in the power plant stack and at 1 km and 6 km transect distance downwind the plant. The sampling campaign was performed in summer when long-range atmospheric transport input is low and thus the coal burning emissions are easier to quantify. The samples were analysed for 16 parent PAHs and 22 nitro- and 8 oxy-PAHs by GC-EI-MS/MS and GCECNI-MS. An emission factor of 2.3 µg/kg coal was estimated for the Σ47 PAHs. The relative distribution of the contaminants was as follows: 66% PAHs, 21% oxy-PAHs, and 13% nitro-PAHs. Approximately 90% of the compounds were found in the gaseous phase, confirming high efficiency of exhaust particles removal by an electrostatic precipitator in the power plant. The PAH levels observed in ambient air of Longyearbyen (Σ15 PAHs ~556 pg/m3) were significantly lower (up to 2 orders of magnitude) compared to rural sites in Europe and China but were about an order of magnitude higher compared to the Canadian Arctic (Alert station) concentrations. Nitro- and oxy-PAH concentrations (Σ22 nitro-PAHs ~32 pg/m3 and Σ7 oxyPAHs ~352 pg/m3) were found at the same order of magnitude as detected at other background Scandinavian (Råö and Pallas) and central European (Košetice) monitoring stations. A multivariate statistical analysis confirmed local coal burning as the source of PAHs, as well as vehicle and marine traffic. Oxy-PAHs and nitro-PAHs also result from reactions of primary PAHs with atmospheric oxidants. Such secondary formation was concluded as an additional source of several nitro-PAHs. However, a preliminary study on the annual distribution of PAHs in Longyearbyen air revealed 2 orders of magnitude higher PAH levels in ... |
author2 |
Institut National de l'Environnement Industriel et des Risques (INERIS) |
format |
Conference Object |
author |
Drotikova, Tatiana Albinet, Alexandre Halse, Anne Karine Reinardy, Helena C. Ali, Aasim M. Kallenborn, Roland |
author_facet |
Drotikova, Tatiana Albinet, Alexandre Halse, Anne Karine Reinardy, Helena C. Ali, Aasim M. Kallenborn, Roland |
author_sort |
Drotikova, Tatiana |
title |
Svalbard local air contamination by PAHs and nitro- and oxy- PAHs |
title_short |
Svalbard local air contamination by PAHs and nitro- and oxy- PAHs |
title_full |
Svalbard local air contamination by PAHs and nitro- and oxy- PAHs |
title_fullStr |
Svalbard local air contamination by PAHs and nitro- and oxy- PAHs |
title_full_unstemmed |
Svalbard local air contamination by PAHs and nitro- and oxy- PAHs |
title_sort |
svalbard local air contamination by pahs and nitro- and oxy- pahs |
publisher |
HAL CCSD |
publishDate |
2020 |
url |
https://hal-ineris.archives-ouvertes.fr/ineris-03319944 |
op_coverage |
Loen, Norway |
geographic |
Arctic Svalbard Longyearbyen Norway |
geographic_facet |
Arctic Svalbard Longyearbyen Norway |
genre |
AMAP Arctic Longyearbyen Svalbard |
genre_facet |
AMAP Arctic Longyearbyen Svalbard |
op_source |
Norwegian Environmental Chemistry Symposium (NECS 2020) https://hal-ineris.archives-ouvertes.fr/ineris-03319944 Norwegian Environmental Chemistry Symposium (NECS 2020), Sep 2020, Loen, Norway |
op_relation |
ineris-03319944 https://hal-ineris.archives-ouvertes.fr/ineris-03319944 |
_version_ |
1766360596351025152 |