| Titolo | Important source of marine secondary organic aerosol from biogenic amines |
|---|---|
| Tipo di pubblicazione | Articolo su Rivista peer-reviewed |
| Anno di Pubblicazione | 2008 |
| Autori | Facchini, M.C., Decesari S., Rinaldi M., Carbone C., Finessi E., Mircea Mihaela, Fuzzi S., Moretti F., Tagliavini E., Ceburnis D., and O'Dowd C.D. |
| Rivista | Environmental Science and Technology |
| Volume | 42 |
| Paginazione | 9116-9121 |
| ISSN | 0013936X |
| Parole chiave | Aerosols, Air mass, air sampling, Algae, Ambient aerosols, Amination, Amines, Atlantic Ocean, Atlantic Ocean (North), Atmospheric aerosols, atmospheric pollution, Bioactivity, Biogenic amines, biogenic emission, Biological activities, Clean airs, Data envelopment analysis, Detection limits, inorganic salt, Lower concentrations, Magnetic Resonance Spectroscopy, Marine aerosols, Marine particles, Median concentrations, North atlantic, Open oceans, Organic Chemicals, organic compounds, organic nitrogen, Organic species, particle size, particulate matter, Polluted air masses, Quaternary Ammonium Compounds, Sampling sites, Sea sprays, Seasons, Seawater, Secondary organic aerosols, Soluble fractions, Soluble organic nitrogens, Sub micrometers, sulfate, Sulfuric acid, Water |
| Abstract | Relevant concentrations of dimethyl- and diethylammonium salts (DMA + and DEA+) were measured in submicrometer marine aerosol collected over the North Atlantic during periods of high biological activity (HBA) in clean air masses (median concentration (minimum-maximum) = 26 (6-56) ng m-3). Much lower concentrations were measured during periods of low biological activity (LBA): 1 (<0.4-20) ng m-3 and when polluted air masses were advected to the sampling site: 2 (<0.2-24) ng m-3. DMA+ and DEA+ are the most abundant organic species, second only to MSA, detected in fine marine particles representing on average 11% of the secondary organic aerosol (SOA) fraction and a dominant part (35% on average) of the water-soluble organic nitrogen (WSON). Several observations support the hypothesis that DMA+ and DEA+ have a biogenic oceanic source and are produced through the reaction of gaseous amines with sulfuric acid or acidic sulfates. Moreover, the water-soluble fraction of nascent marine aerosol particles produced by bubble-bursting experiments carried out in parallel to ambient aerosol sampling over the open ocean showed WSON, DMA+, and DEA+ concentrations always below the detection limit, thus excluding an important primary sea spray source. © 2008 American Chemical Society. |
| Note | cited By 157 |
| URL | https://www.scopus.com/inward/record.uri?eid=2-s2.0-58149143156&doi=10.1021%2fes8018385&partnerID=40&md5=595baa1d08053dd2524e92bb118c4423 |
| DOI | 10.1021/es8018385 |
| Citation Key | Facchini20089116 |
