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　　若??(ruo)空??(kong)氣??(qi)中??(zhong)花??(hua)粉??(fen)濃??(nong)度??(du)較??(jiao)高?(gao)??，花??(hua)粉??(fen)可??(ke)能??(neng)會??(hui)沉??(chen)積??(ji)在??(zai)下?(xia)呼?(hu)吸??(xi)道??(dao)??，導??(dao)致??(zhi)發(fā)??(fa)作??(zuo)性??(xing)喘??(chuan)息??(xi)、咳??(ke)嗽??(sou)、胸??(xiong)悶??(men)等??(deng)過??(guo)敏??(min)性??(xing)哮??(xiao)喘??(chuan)的??(de)癥?(zheng)狀??(zhuang)??。??　　★ 減??(jian)少??(shao)戶??(hu)外??(wai)時??(shi)間??(jian)是??(shi)最??(zui)有??(you)效??(xiao)的??(de)防??(fang)護??(hu)措??(cuo)施??(shi)??，關(guān)??(guan)注??(zhu)花??(hua)粉?(fen)濃??(nong)度??(du)預??(yu)報??(bao)??，盡??(jin)量??(liang)避??(bi)免?(mian)在??(zai)花??(hua)粉??(fen)濃??(nong)度??(du)較??(jiao)高?(gao)時??(shi)段??(duan)外??(wai)出??(chu)??，盡??(jin)可??(ke)能??(neng)減?(jian)少?(shao)花??(hua)粉?(fen)的??(de)吸??(xi)入??(ru)量??(liang)??。??。