空气污染与儿童呼出气最大流速的研究

对承德市空气污染和学生呼出气最大流速（ＰＥＦ）进行了研究，空气监测表明，承德市冬季除ＮＯ２外，ＳＯ２、ＴＳＰ和ＣＯ浓度燃煤区高于集中的供热区，ＰＥＦ测试发现，采暖后期燃煤组学生ＰＥＦ与采暖前期相比明显降低，与供热组比较，差异显著。供热组的ＰＥＦ值采后变化不大。研究认为，空气污染使ＰＥＦ值明显降低，测试ＰＥＦ为早期显示空气污染对人体功能影响的研究提供了新方法。

Study on Air Pollution and PEF

he paper reported a research on Air pollution in chengde of china and peak Explratory flow(PEF)of pupits,Montoing restrls for Air showed that concentra-tions of SO2,TSP and CO higher in coal-bunning distriot than in cdntralized heat supply distriot,exocpt for NO2, in chengde' Winter.Monitoning nesults for PEF showed that PEF of pupills in coal-bunning grow sigrilicanty lower affter winter than befor winter.The grow in coal-bunning com-pane with the growin heat supply, differenes was obxi-ons. In the heat suply grow, dterges of between befor winter and affter winter was very small.the project be-lieved that Air pollutions could neduced PEF.Analyses to PEF Should supply a new measure to pulnomary funtions.