2020
Modeling the Formation, Degradation, and Spatiotemporal Distribution of 2-Nitrofluoranthene and 2-Nitropyrene in the Global Atmosphere
WILSON, Jake; Mega OCTAVIANI; Benjamin A. Musa BANDOWE; Marco WIETZORECK; Cornelius ZETZSCH et al.Základní údaje
Originální název
Modeling the Formation, Degradation, and Spatiotemporal Distribution of 2-Nitrofluoranthene and 2-Nitropyrene in the Global Atmosphere
Autoři
WILSON, Jake; Mega OCTAVIANI; Benjamin A. Musa BANDOWE; Marco WIETZORECK; Cornelius ZETZSCH; Ulrich POSCHL; Thomas BERKEMEIER a Gerhard LAMMEL
Vydání
Environmental Science and Technology, Washington, D.C. American Chemical Society, 2020, 0013-936X
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10511 Environmental sciences
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 9.028
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:14310/20:00114743
Organizační jednotka
Přírodovědecká fakulta
UT WoS
EID Scopus
Klíčová slova anglicky
Atmospheric chemistry; Photodegradation; Aerosols; Environmental modeling; Reactivity
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 25. 2. 2021 21:22, Mgr. Michaela Hylsová, Ph.D.
Anotace
V originále
Polycyclic aromatic hydrocarbons (PAHs) are common atmospheric pollutants and known to cause adverse health effects. Nitrated PAHs (NPAHs) are formed in combustion activities and by nitration of PAHs in the atmosphere and may be equally or more toxic, but their spatial and temporal distribution in the atmosphere is not well characterized. Using the global EMAC model with atmospheric chemistry and surface compartments coupled, we investigate the formation, abundance, and fate of two secondarily formed NPAHs, 2-nitrofluoranthene (2-NFLT) and 2-nitropyrene (2-NPYR). The default reactivity scenario, the model with the simplest interpretation of parameters from the literature, tends to overestimate both absolute concentrations and NPAH/PAH ratios at observational sites. Sensitivity scenarios indicate that NO2-dependent NPAH formation leads to better agreement between measured and predicted NPAH concentrations and that photodegradation is the most important loss process of 2-NFLT and 2-NPYR. The highest concentrations of 2-NFLT and 2-NPYR are found in regions with strong PAH emissions, but because of continued secondary formation from the PAH precursors, these two NPAHs are predicted to be spread across the globe.
Návaznosti
| GA20-07117S, projekt VaV |
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