某市交通废气污染对交警染色体损伤作用

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1、维普资讯http://www.cqvip.com癌变■变寞变O圈衄V01．17No．4导某市交通废气EfectsofTraficAirPollution污染对交警染色体OntheRateofMicronucleus损伤作用andSisterChromaticExchangeoftTrafic白玉萍／李君／范雪云／姚三巧／蒋守芳／金玉兰PoliceinaCity(华北煤炭医学院预防医学系，河北唐II1063000)BAIYu·ping，LIJan，FANXue·yun，YAOSan-qiao，JIANGShou-fang，JINYu·lan(DepartmentofPr

2、eventiveMedicine，NorthChinaCoalMedicalMedicineHebei，Tangshan063000，Heibei，China)【摘要】背景与目的：_r解某市交通废气污染现状，探讨交通废气污染对交警染色体的损伤作用，为机动车辆的管理及保护职业人群提供科学依据。材料与方法：根据某市交通路Lj的分布情况，选择有代表性的路口进行环境监测。监测项日为车流量、可吸入颗粒物(1nhalep．dne，ll’)、氮氧化物(Nitrogenoxides，NOx)、一氧化碳(Carbonmonoxide，c())、烃类(Hydrocarbond，CmHn)

3、。对196名外勤交警(外勤警)、148名内劫交警(内勤警)的健康状况进行问卷调查，并从龄≥5年者中随机抽取外勤警65名、内勤警49名测其外周血淋巴细胞姐妹染色单体交换频率(Sisterchromatic)及微核(Mieronucleus，MN)率。结果：各环境监测点CO、NOx、C⋯HIP的浓度高于对照点，差别有菩性；外勤警SCE牢均高于内勤警，T龄越长，SCE率越高。内、外勤警中吸烟者SCE率、MN率均高于不吸烟者，差别有显著性。结论：某市交通路口交通废气污染严重，CO、NO严重超标，长期暴露于交通废气污染可引起染色体损伤，吸烟可加重对外勤警的染色体损伤。【关键词】

4、交通废气；交警；姊妹染色单体交换；微核中图分类号：R122．7；R994．6文献标识码：A文章编号：1004～616X(2005)04—0250—04【ABSTRACT】BACKGROUND＆AIM：Tostudythecircumstanceoftrafficairpollutionanditseffectsontherateofmicro-nuclearandsisterchmmaticexchangeandoftrafficpoliceinonecityandtoprovidescientificproofsforthemanagementofvehiclesa

5、ndtheprotectionoftheoccupationalgroup．METERIALANDMETHODS：Accordingtothedistributionofthetraffic．representativecrossFOadSandacontrolpointwereselectedandmonitored．Themonitoringiternsincludethenumberofinhale，particles(IP)，nitrogenoxides(NOx)，carbonmonoxide(CO)andhydrocarbon(CmHn)．Thecommon

6、andhealthsituationof196trafficpolicemenwhoworkedatcrossroadsand148trafficpolicemenwhoworkedintheofficewereinvestigatedbymeansofquestionnaires．AtthesalTletime．65trafficpolicemenwhoworkedatCroSS1"0adSand49trafficpolicemenwhoworkedintheofficewhosedurationofworkingexceededfiveyearswereselec

7、tedbyrandomsample．Micro·nuclearandsisterchromaticexchangesinperipheralbloodweremeasured．RESULTS：rheconcentrationofCO．NOx，CmHnandIPinthemonitoringpointissignificantlyhigherthanthatinthecontrolpoint．r}1econcentrationofthepollutionshaspositivecorrelationwiththenumberofvehicles；Com