Sea salt in aerosols over the southern Baltic. Part 2. The neutralizing properties of sea salt and ammonia

• Autorzy: Lewandowska A. U. , Falkowska L. M.
• Języki publikacji: EN

Abstrakty

EN

In 2001-2007 aerosols were measured in the coastal zone (11 campaigns) and over the open waters of the Gdańsk Basin (southern Baltic) (5 campaigns). The marine aerosols contained nitrogen and sulphur compounds, which increased their acidity. This situation intensified during the cool months of the year, when fossil fuel emissions were higher, proportionate to energy and heat requirements. Irrespective of the season, these acidic aerosols were neutralized in the reaction with sea salt. The likelihood of sodium nitrate being formed increased at air humidities > 80% and nitrate concentrations >30 nmol m-3. Sodium sulphate was present in aerosols mostly in autumn and winter, with northerly advection, and at the highest wind speeds. The excess of free ammonia resulted in the formation of ammonium sulphate and ammonium nitrate in aerosols over the southern Baltic.

Słowa kluczowe

EN

sea salt; acid aerosols; neutralization; coastal zone

• Wydawca: Polish Academy of Sciences, Institute of Oceanology ; Elsevier
• Czasopismo: Oceanologia
• Rocznik: 2013
• Tom: No. 55 (2)
• Strony: 299--318
• Opis fizyczny: Bibliogr. 36 poz., rys., tab., wykr.

Twórcy

autor

Lewandowska A. U.

autor

Falkowska L. M.

• Institute of Oceanography, University of Gdańsk, al. Marszałka J. Piłsudskiego 46, 81-378 Gdynia, Poland

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