Air-soil cycling of oxygenated, nitrated and parent polycyclic aromatic hydrocarbons in source and receptor areas

0585150 - ÚVGZ 2025 RIV NL eng J - Článek v odborném periodiku
Mwangi, J.K. - Degrendele, C. - Bandowe, B.A.M. - Bohlin-Nizzetto, P. - Halse, A.K. - Šmejkalová, A. H. - Kim, J. - Kukučka, P. - Martiník, J. - Nežiková, B. - Přibylová, P. - Prokeš, Roman - Sáňka, M. - Tannous, M. - Vinkler, J. - Lammel, G.
Air-soil cycling of oxygenated, nitrated and parent polycyclic aromatic hydrocarbons in source and receptor areas.
Science of the Total Environment. Roč. 921, APR (2024), č. článku 170495. ISSN 0048-9697. E-ISSN 1879-1026
Grant CEP: GA MŠMT(CZ) LM2023030
Institucionální podpora: RVO:86652079
Klíčová slova: semivolatile organic-compounds * dispersion model flexpart * organochlorine pesticides * particulate matter * background soils * atmospheric deposition * containing derivatives * carbonaceous aerosol * rural-areas * ambient air * Polycyclic aromatic compounds * Soil fugacity * Aerosol * Long-range atmospheric transport * Grasshopper effect
Obor OECD: Environmental sciences (social aspects to be 5.7)
Impakt faktor: 9.8, rok: 2022
Způsob publikování: Omezený přístup
https://www.sciencedirect.com/science/article/pii/S0048969724006326?via%3Dihub

Polycyclic aromatic hydrocarbons (PAHs) and their oxygenated and nitrated derivatives, OPAHs and NPAHs, are semivolatile air pollutants which are distributed and cycling regionally. Subsequent to atmospheric deposition to and accumulation in soils they may revolatilise, a secondary source which is understudied. We studied the direction of airsoil mass exchange fluxes of 12 OPAHs, 17 NPAHs, 25 PAHs and one alkylated PAH in two rural environments being influenced by the pollutant concentrations in soil and air, by season, and by land cover. The OPAHs and NPAHs in samples of topsoil, of ambient air particulate and gas phases and in the gas phase equilibrated with soil were analysed by GC-APCI-MS/MS. The pollutants soil burdens show a pronounced seasonality, a winter maximum for NPAHs and PAHs and a summer maximum for OPAHs. One order of magnitude more OPAH and parent PAH are found stored in forest soil than in nearby grassland soil. Among a number of 3-4 ring PAHs, the OPAHs benzanthrone and 6H-benzo(c,d)pyren-6-one, and the NPAHs 1- and 2nitronaphthalene, 9-nitrophenanthrene and 7-nitrobenz(a)anthracene are found to revolatilise from soils at a rural background site in central Europe in summer. At a receptor site in northern Europe, net deposition of polycyclic aromatic compounds (PACs) prevails and revolatilisation occurs only sporadic. Revolatilisation of a number of PACs, including strong mutagens, from soils in summer and even in winter indicates that long-range atmospheric transport of primary PAC emissions from central Europe to receptor areas might be enhanced by secondary emissions from soils.
Trvalý link: https://hdl.handle.net/11104/0352890