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　　2　　花?(hua)粉??(fen)過(guò)??(guo)敏??(min)又??(you)叫??(jiao)花??(hua)粉??(fen)癥??(zheng)、枯??(ku)草??(cao)熱??(re)?，主??(zhu)要??(yao)是??(shi)由??(you)于??(yu)對(duì)??(dui)植??(zhi)物??(wu)花??(hua)粉??(fen)存??(cun)在??(zai)過(guò)??(guo)敏??(min)現(xiàn)??(xian)象?(xiang)?，并??(bing)對(duì)??(dui)眼??(yan)、鼻??(bi)、呼??(hu)吸??(xi)道??(dao)、皮??(pi)膚??(fu)等??(deng)產(chǎn)??(chan)生??(sheng)影??(ying)響??(xiang)??。??該??(gai)類?(lei)疾??(ji)病??(bing)的??(de)過(guò)??(guo)敏??(min)原??(yuan)是??(shi)花??(hua)粉??(fen)?，過(guò)?(guo)敏??(min)原??(yuan)傳??(chuan)播??(bo)的??(de)媒??(mei)介??(jie)主?(zhu)要??(yao)是??(shi)風(fēng)??(feng)??。在??(zai)我?(wo)國(guó)??(guo)?，不??(bu)同??(tong)地??(di)區(qū)?(qu)的??(de)氣??(qi)傳??(chuan)花??(hua)粉??(fen)植??(zhi)物??(wu)季??(ji)節(jié)??(jie)分??(fen)布??(bu)特??(te)征??(zheng)因??(yin)氣??(qi)候??(hou)條??(tiao)件??(jian)、植??(zhi)物??(wu)的??(de)物??(wu)候??(hou)條??(tiao)件??(jian)特??(te)征??(zheng)不??(bu)同??(tong)?，存??(cun)在??(zai)一??(yi)定??(ding)差??(cha)異??(yi)??。對(duì)?(dui)于??(yu)北??(bei)京??(jing)來(lái)??(lai)說(shuō)??(shuo)?，氣??(qi)傳?(chuan)花??(hua)粉??(fen)植??(zhi)物??(wu)的??(de)盛??(sheng)花??(hua)期??(qi)主??(zhu)要??(yao)分??(fen)為??(wei)2個(gè)??(ge)高??(gao)峰??(feng)期??(qi)?，那??(na)么??(me)花?(hua)粉?(fen)過(guò)??(guo)敏??(min)的??(de)流??(liu)行??(xing)也?(ye)就??(jiu)相??(xiang)應(yīng)??(ying)存??(cun)在??(zai)兩??(liang)個(gè)?(ge)高??(gao)發(fā)??(fa)期?(qi)??。。