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@article{1409131,
author = {Lammel, Gerhard and Mulder, Marie Daniëlle and Shahpoury, Pourya and Kukučka, Petr and Lišková, Hana and Přibylová, Petra and Prokeš, Roman and Wotawa, Gerhard},
article_location = {GOTTINGEN},
article_number = {10},
doi = {http://dx.doi.org/10.5194/acp-17-6257-2017},
keywords = {FREE-ENERGY RELATIONSHIPS; DISPERSION MODEL FLEXPART; FRENCH ALPINE VALLEYS; LONG-RANGE TRANSPORT; AMBIENT AIR; ORGANIC-COMPOUNDS; ATMOSPHERIC TRANSPORT; NITRATED-PAHS; BOUND PAHS; OXYGENATED DERIVATIVES},
language = {eng},
issn = {1680-7316},
journal = {Atmospheric Chemistry and Physics},
title = {Nitro-polycyclic aromatic hydrocarbons - gas-particle partitioning, mass size distribution, and formation along transport in marine and continental background air},
url = {https://www.atmos-chem-phys.net/17/6257/2017/},
volume = {17},
year = {2017}
}
TY - JOUR
ID - 1409131
AU - Lammel, Gerhard - Mulder, Marie Daniëlle - Shahpoury, Pourya - Kukučka, Petr - Lišková, Hana - Přibylová, Petra - Prokeš, Roman - Wotawa, Gerhard
PY - 2017
TI - Nitro-polycyclic aromatic hydrocarbons - gas-particle partitioning, mass size distribution, and formation along transport in marine and continental background air
JF - Atmospheric Chemistry and Physics
VL - 17
IS - 10
SP - 6257-6270
EP - 6257-6270
PB - COPERNICUS GESELLSCHAFT MBH
SN - 16807316
KW - FREE-ENERGY RELATIONSHIPS
KW - DISPERSION MODEL FLEXPART
KW - FRENCH ALPINE VALLEYS
KW - LONG-RANGE TRANSPORT
KW - AMBIENT AIR
KW - ORGANIC-COMPOUNDS
KW - ATMOSPHERIC TRANSPORT
KW - NITRATED-PAHS
KW - BOUND PAHS
KW - OXYGENATED DERIVATIVES
UR - https://www.atmos-chem-phys.net/17/6257/2017/
L2 - https://www.atmos-chem-phys.net/17/6257/2017/
N2 - Nitro-polycyclic aromatic hydrocarbons (NPAH) are ubiquitous in polluted air but little is known about their abundance in background air. NPAHs were studied at one marine and one continental background site, i.e. a coastal site in the southern Aegean Sea (summer 2012) and a site in the central Great Hungarian Plain (summer 2013), together with the parent compounds, PAHs. A Lagrangian particle dispersion model was used to track air mass history. Based on Lagrangian particle statistics, the urban influence on samples was quantified for the first time as a fractional dose to which the collected volume of air had been exposed. At the remote marine site, the 3-4-ring NPAH (sum of 11 targeted species) concentration was 23.7 pg m(-3) while the concentration of 4-ring PAHs (6 species) was 426 pg m(-3). The most abundant NPAHs were 2-nitrofluoranthene (2NFLT) and 3-nitrophenanthrene. Urban fractional doses in the range of <0.002-5.4% were calculated. At the continental site, the Sigma(11) 3-4-ring NPAH and Sigma(6) 4-ring PAH were 58 and 663 pg m(-3), respectively, with 9-nitroanthracene and 2NFLT being the most concentrated amongst the targeted NPAHs. The NPAH levels observed in the marine background air are the lowest ever reported and remarkably lower, by more than 1 order of magnitude, than 1 decade before. Day-night variation of NPAHs at the continental site reflected shorter lifetime during the day, possibly because of photolysis of some NPAHs. The yields of formation of 2NFLT and 2-nitropyrene (2NPYR) in marine air seem to be close to the yields for OH-initiated photochemistry observed in laboratory experiments under high NOx conditions. Good agreement is found for the prediction of NPAH gas-particle partitioning using a multi-phase poly-parameter linear free-energy relationship. Sorption to soot is found to be less significant for gas-particle partitioning of NPAHs than for PAHs. The NPAH levels determined in the south-eastern outflow of Europe confirm intercontinental transport potential.
ER -
LAMMEL, Gerhard, Marie Dani$\backslash$''elle MULDER, Pourya SHAHPOURY, Petr KUKUČKA, Hana LIŠKOVÁ, Petra PŘIBYLOVÁ, Roman PROKEŠ a Gerhard WOTAWA. Nitro-polycyclic aromatic hydrocarbons - gas-particle partitioning, mass size distribution, and formation along transport in marine and continental background air. \textit{Atmospheric Chemistry and Physics}. GOTTINGEN: COPERNICUS GESELLSCHAFT MBH, 2017, roč.~17, č.~10, s.~6257-6270. ISSN~1680-7316. Dostupné z: https://dx.doi.org/10.5194/acp-17-6257-2017.
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