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CASTANEDA, Abel; CORVO, Francisco; HOWLAND, Juan J.  and  MARRERO, Rigoberto. Penetration of marine aerosol in a tropical coastal city: Havana. Atmósfera [online]. 2018, vol.31, n.1, pp.87-104. ISSN 0187-6236.

Building structures constitute obstacles for the entrance and distribution of marine aerosol in the atmosphere of Havana City (tropical coastal climate). Due to the shielding effect caused by building structures, a considerable decrease in chloride deposition is determined at a short distance from the sea. Heavier and larger-sized chloride aerosol particles can settle down in the vicinity of breaking waves. The annual average wind speed showed significant influence in increasing chloride deposition at the exposure site close to the sea, where the effect of building structures is negligible and the predicted levels of corrosivity of the atmosphere are high, very high and extreme. Air temperature was the main climatic factor influencing chloride deposition (when temperature decreases, chloride deposition increases). Penetration of marine aerosol is eight times lower in Havana City with respect to other sites without obstacles. Airborne salinity distribution inside the city is different than outside the city.

Keywords : Marine aerosol; distance from the sea; chloride deposition; shielding condition; corrosivity categories.

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