Detailed Information on Publication Record
2017
Nitro-polycyclic aromatic hydrocarbons - gas-particle partitioning, mass size distribution, and formation along transport in marine and continental background air
LAMMEL, Gerhard, Marie Daniëlle MULDER, Pourya SHAHPOURY, Petr KUKUČKA, Hana LIŠKOVÁ et. al.Basic information
Original name
Nitro-polycyclic aromatic hydrocarbons - gas-particle partitioning, mass size distribution, and formation along transport in marine and continental background air
Authors
LAMMEL, Gerhard (276 Germany, guarantor, belonging to the institution), Marie Daniëlle MULDER (528 Netherlands, belonging to the institution), Pourya SHAHPOURY (276 Germany), Petr KUKUČKA (203 Czech Republic, belonging to the institution), Hana LIŠKOVÁ (203 Czech Republic, belonging to the institution), Petra PŘIBYLOVÁ (203 Czech Republic, belonging to the institution), Roman PROKEŠ (203 Czech Republic, belonging to the institution) and Gerhard WOTAWA (40 Austria)
Edition
Atmospheric Chemistry and Physics, GOTTINGEN, COPERNICUS GESELLSCHAFT MBH, 2017, 1680-7316
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10509 Meteorology and atmospheric sciences
Country of publisher
Germany
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 5.509
RIV identification code
RIV/00216224:14310/17:00095519
Organization unit
Faculty of Science
UT WoS
000401801100005
Keywords in English
FREE-ENERGY RELATIONSHIPS; DISPERSION MODEL FLEXPART; FRENCH ALPINE VALLEYS; LONG-RANGE TRANSPORT; AMBIENT AIR; ORGANIC-COMPOUNDS; ATMOSPHERIC TRANSPORT; NITRATED-PAHS; BOUND PAHS; OXYGENATED DERIVATIVES
Tags
International impact, Reviewed
Změněno: 9/4/2018 21:28, Ing. Nicole Zrilić
Abstract
V originále
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.
Links
| GA16-11537S, research and development project |
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| LM2015051, research and development project |
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| LO1214, research and development project |
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