2019
Fast Formation of Nitro-PAHs in the Marine Atmosphere Constrained in a Regional-Scale Lagrangian Field Experiment
MULDER, Marie Daniëlle, Y. DUMANOGLU, Christos EFSTATHIOU, Petr KUKUČKA, Jana MATEJOVIČOVÁ et. al.Základní údaje
Originální název
Fast Formation of Nitro-PAHs in the Marine Atmosphere Constrained in a Regional-Scale Lagrangian Field Experiment
Autoři
MULDER, Marie Daniëlle (528 Nizozemské království, domácí), Y. DUMANOGLU, Christos EFSTATHIOU (300 Řecko, domácí), Petr KUKUČKA (203 Česká republika, domácí), Jana MATEJOVIČOVÁ (703 Slovensko, domácí), Christian MAURER, Petra PŘIBYLOVÁ (203 Česká republika, domácí), Roman PROKEŠ (203 Česká republika, domácí), A. SOFUOGLU, S.C. SOFUOGLU, J. WILSON, C. ZETZSCH, G. WOTAWA a Gerhard LAMMEL (276 Německo, garant, domácí)
Vydání
ENVIRONMENTAL SCIENCE & TECHNOLOGY, WASHINGTON, AMER CHEMICAL SOC, 2019, 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: 7.864
Kód RIV
RIV/00216224:14310/19:00108199
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000480370600046
Klíčová slova anglicky
POLYCYCLIC AROMATIC-HYDROCARBONS; GAS-PHASE REACTIONS; RADICAL-INITIATED REACTIONS; CHEMICAL-TRANSPORT MODEL; LIQUID-VAPOR PRESSURES; PARTICULATE MATTER; ORGANIC-COMPOUNDS; CONSECUTIVE REACTIONS; DRY DEPOSITION; AMBIENT AIR
Štítky
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 16. 4. 2020 09:15, prof. Gerhard Lammel, PhD.
Anotace
V originále
Polycyclic aromatic hydrocarbons (PAHs) and some of their nitrated derivatives, NPAHs, are seemingly ubiquitous in the atmospheric environment. Atmospheric lifetimes may nevertheless vary within a wide range, and be as short as a few hours. The sources and sinks of NPAH in the atmosphere are not well understood. With a Lagrangian field experiment and modeling, we studied the conversion of the semivolatile PAHs fluoranthene and pyrene into the 2-nitro derivatives 2-nitrofluoranthene and 2-nitropyrene in a cloud-free marine atmosphere on the time scale of hours to 1 day between a coastal and an island site. Chemistry and transport during several episodes was simulated by a Lagrangian box model i.e., a box model coupled to a Lagrangian particle dispersion model, FLEXPART-WRF. It is found that the chemical kinetic data do capture photochemical degradation of the 4-ring PAHs under ambient conditions on the time scale of hours to 1 day, while the production of the corresponding NPAH, which sustained 2-nitrofluoranthene/fluoranthene and 2-nitropyrene/pyrene yields of (3.7 +/- 0.2) and (1.5 +/- 0.1)%, respectively, is by far underestimated. Predicted levels of NPAH come close to observed ones, when kinetic data describing the reactivity of the OH-adduct were explored by means of theoretically based estimates. Predictions are also underestimated by 1-2 orders of magnitude, when NPAH/PAH yields reported from laboratory experiments conducted under high NOx conditions are adopted for the simulations. It is concluded that NPAH sources effective under low NOx conditions, are largely underestimated.
Návaznosti
EF16_013/0001761, projekt VaV |
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GA16-11537S, projekt VaV |
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LM2015051, projekt VaV |
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