【摘 要】
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Air pollution by particulate matter (PM) is one of the main threats to human health,particularly in large cities where pollution levels are continually exceeded.According to their source of emission,geography,and local me-teorology,the pollutant particles
【机 构】
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Department of Civil and Environmental,Universidad de la Costa,CUC,Calle 58 # 55-66,Barranquilla,Atlá
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Air pollution by particulate matter (PM) is one of the main threats to human health,particularly in large cities where pollution levels are continually exceeded.According to their source of emission,geography,and local me-teorology,the pollutant particles vary in size and composition.These particles are conditioned to the aerody-namic diameter and thus classified as coarse (2,5-10μm),fine (0.1-2.5 μm),and ultrafine (＜0.1 μm),where the degree of toxicity becomes greater for smaller particles.These particles can get into the lungs and translocate into vital organs due to their size,causing significant human health consequences.Besides,PM pollutants have been linked to respiratory conditions,genotoxic,mutagenic,and carcinogenic activity in human beings.This paper presents an overview of emission sources,physicochemical characteristics,collection and measurement methodologies,toxicity,and existing control mechanisms for ultrafine particles (UFPs) in the last fifteen years.
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