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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-22 1:44 |
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Conference: Bucharest University Faculty of Physics 2010 Meeting
Section: Atmosphere and Earth Science; Environment Protection
Title:
Scavenging of Aerosols and Gases in Atmosphere
Authors:
Teodora Costescu and Sabina Stefan
Affiliation:
University of Bucharest, Faculty of Physics, P.O.Box MG-11, Magurele , Bucharest, Romania
E-mail
teoscorpion25@yahoo.com
Keywords:
scavenging, aerosol, gases, atmosphere
Abstract:
The scavenging of aerosols and gases is the major removal process in the atmosphere. Controlling the availability of aerosol and gases in the troposphere, this process influences the global radiative balance of the Earth, and the quality of the air. The environment is also affected by the scavenging processes, which transport aerosols and gases to the ground via dissolution in clouds and precipitation. The chemical composition of precipitation, often reported as precipitation acidity, can have both negative and positive effects on biosphere and human life; for example, it can damage terrestrial and aquatic ecosystems and monuments/buildings but it can also transport nutrients to the aquatic ecosystems. This paper’s aim is to asses the role of in-cloud scavenging of aerosol respect to below-cloud scavenging on aerosol depletion and precipitation acidification. Long term monitoring of aerosol and precipitation size distributions and precipitation intensity will be used to assess the pollutant and meteorological conditions when the precipitation intensity is enough to describe the scavenging.
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