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@article{1742398,
author = {Wilson, Jake and Octaviani, Mega and Bandowe, Benjamin A. Musa and Wietzoreck, Marco and Zetzsch, Cornelius and Poschl, Ulrich and Berkemeier, Thomas and Lammel, Gerhard},
article_location = {Washington, D.C.},
article_number = {22},
doi = {http://dx.doi.org/10.1021/acs.est.0c04319},
keywords = {Atmospheric chemistry; Photodegradation; Aerosols; Environmental modeling; Reactivity},
language = {eng},
issn = {0013-936X},
journal = {Environmental Science and Technology},
title = {Modeling the Formation, Degradation, and Spatiotemporal Distribution of 2-Nitrofluoranthene and 2-Nitropyrene in the Global Atmosphere},
url = {https://pubs.acs.org/doi/10.1021/acs.est.0c04319},
volume = {54},
year = {2020}
}
TY - JOUR
ID - 1742398
AU - Wilson, Jake - Octaviani, Mega - Bandowe, Benjamin A. Musa - Wietzoreck, Marco - Zetzsch, Cornelius - Poschl, Ulrich - Berkemeier, Thomas - Lammel, Gerhard
PY - 2020
TI - Modeling the Formation, Degradation, and Spatiotemporal Distribution of 2-Nitrofluoranthene and 2-Nitropyrene in the Global Atmosphere
JF - Environmental Science and Technology
VL - 54
IS - 22
SP - 14224-14234
EP - 14224-14234
PB - American Chemical Society
SN - 0013936X
KW - Atmospheric chemistry
KW - Photodegradation
KW - Aerosols
KW - Environmental modeling
KW - Reactivity
UR - https://pubs.acs.org/doi/10.1021/acs.est.0c04319
L2 - https://pubs.acs.org/doi/10.1021/acs.est.0c04319
N2 - 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.
ER -
WILSON, Jake, Mega OCTAVIANI, Benjamin A. Musa BANDOWE, Marco WIETZORECK, Cornelius ZETZSCH, Ulrich POSCHL, Thomas BERKEMEIER and Gerhard LAMMEL. Modeling the Formation, Degradation, and Spatiotemporal Distribution of 2-Nitrofluoranthene and 2-Nitropyrene in the Global Atmosphere. \textit{Environmental Science and Technology}. Washington, D.C.: American Chemical Society, 2020, vol.~54, No~22, p.~14224-14234. ISSN~0013-936X. Available from: https://dx.doi.org/10.1021/acs.est.0c04319.
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