Anthropogenic aerosols over the coastal zone of the Gdańsk Basin

• Autorzy: Lewandowska A. , Falkowska L.

Warianty tytułu

PL

Aerozole pochodzenia antropogenicznego w strefie brzegowej Basenu Gdańskiego

• Języki publikacji: EN

Abstrakty

EN

Concentrations of ionic components of aerosols and gaseous components of air in the coastal zone of the Southern Baltic were determined. In aerosols over the seawater sulphates of marine origin were always found, however, they were not related to the marine salt. Their role as condensation nuclei in clouds is emphasized with the particular focus on scatter of solar radiation behind the atmosphere. In May 2003, in the atmosphere over Gdynia, no ammonium sulphate was detected and ammonium nitrate was found to be responsible for the reflection of the solar radiation. At the same time when aerosols over the Gulf of Gdańsk were poor with ammonium nitrate the backscatter of light was made essentially by ammonium sulphate. Because of high Rh of the air over both stations aerosol was likely to be supersaturated with water vapor. Both ammonium salts were, in turn, observed over Sopot in August with the NH₄NO₃ / (NH₄),₂SO₄ ratio equal to 1:3. The relative air humidity was above crystallization point. The aerosol was wet and considered to be responsible for the backscattering of the solar radiation.

PL

W strefie brzegowej południowego Bałtyku i nad otwartym morzem zmierzono stężenia jonowych składników aerozoli oraz gazowych składników powietrza. W atmosferze nadmorskiej w aerozolach obecne były zawsze siarczany morskiego pochodzenia, niezwiązane z solą morską (nssSO₄), które jako jądra kondensacji w chmurach odbijają promieniowanie słoneczne poza atmosferę. W maju 2003 w atmosferze nad Gdynią nic obserwowano siarczanu amonu w aerozolach, a za odbijanie światła odpowiedzialny był azotan amonu. W tym samym czasie, gdy w aerozolach nad Głębią Gdańską nie było azotanu amonu rolę tę pełnił siarczan amonu. Ze względu na wysoką wilgotność powietrza nad obiema stacjami aerozol był przesycony parą wodną. Nad Sopotem, w sierpniu 2003 roku obserwowano obie sole amonowe, a stosunek NH₄NO₃ / (NH₄),₂SO₄ wynosił 1:3. Wilgotność względna powietrza atmosferycznego była wówczas powyżej punktu krystalizacji, aerozol był "mokry" i odpowiadał za odbijanie promieniowania słonecznego.

Słowa kluczowe

EN

aerosol; gases; sea salt; ammonium sulphate; ammonium nitrate; wet and dry aerosol

PL

aerozol atmosferyczny; sól morska; siarczan amonu; azotan amonu; aerozol mokry i suchy

• Wydawca: Institute of Environmental Engineering, Polish Academy of Sciences
• Czasopismo: Archiwum Ochrony Środowiska
• Rocznik: 2005
• Tom: Vol. 31, no. 3
• Strony: 15--24
• Opis fizyczny: Bibliogr. 22 poz., tab., wykr.

Twórcy

autor

Lewandowska A.

• University of Gdańsk, Institute of Oceanography, al. Pitsudskiego 46, 81-378 Gdynia, Poland

autor

Falkowska L.

• University of Gdańsk, Institute of Oceanography, al. Pitsudskiego 46, 81-378 Gdynia, Poland

Bibliografia

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