不同粒径室外大气颗粒物与儿童哮喘相关性的研究进展

摘要

Outdoor particulate matter can affect human health seriously,and children are possibly susceptible to the effects of particulate matter because of the characteristics of the growth and development.Particulate matter is categorized into total suspended,inhalable,fine,and ultrafine fractions on the basis of its aerodynamic diameter.To explore the short-term effects of particulate matter on pediatric asthma,this article reviews the components and property of particulate matter,the possible mechanisms and the epidemiological studies of particulate matter on children with asthma.%室外大气颗粒物严重影响人体健康,而儿童由于生长发育的特点对颗粒物较为敏感.大气颗粒物按空气动力学粒径可分为总悬浮颗粒物、可吸入颗粒物、细颗粒物和超细颗粒物等.为探讨颗粒物对儿童哮喘急性发作的影响,该文对不同粒径颗粒物的来源、组成、理化性质、作用机制及其与儿童哮喘相关性的流行病学研究进行综述,为深入研究不同粒径颗粒物对儿童哮喘的影响提供依据.