固硫煤和普通煤对SO2污染和健康危害的对比研究

探讨固硫煤与普通煤燃烧造成室内SO2污染及对健康的危害作用.将家兔分别喂养在燃烧固硫煤、普通煤和不烧煤的环境中连续观察90d,每天监测室内环境中SO2、CO的浓度;实验各时期测定家兔LYS含量和血清中SOD、GSH-PX、SA浓度.结果:固硫煤组SO224h平均浓度(2.68mg/m3)明显低于普通煤组(13.04mg/m3),但CO水平两组间无明显差异.实验90d后与实验前的GSH-PX值的差值比较,普通煤＞空白对照组＞固硫煤组,普通煤和固硫煤组间的差别有显著性意义(p＜0.05);SOD、SA、LYS值在实验期有所变化,但各组间的差别无显著性意义 (p＞0.05).结论:提示燃煤煤烟中SO2能影响生物体内SOD、GSH-PX、LYS、SA的浓度变化,燃烧固硫煤能明显降低SO2的污染,故使用固硫煤可减少燃煤煤烟对健康的危害.

Comparison Study of Coal-biomass Briquette and Raw Coal in SO2 Pollution and Harmfulness to Health

To evaluate the harmfulness to health by SO 2 indoors emitted from burning coal biomass briquette and raw coal.Rabbits were kept raised respectively for 90 days in three laboratory rooms with the same size and structure.One room is burning raw coal,one room burning coal biomass briquette,and the third room without burning coal(Blank Control Group).The concentration of SO 2 and CO was measured every day.SOD,GSH PX and SA in blood,LYS level of rabbits were tested three times.The average concentration of SO 2 of 24 hours in R.C.Group (13.04mg/m 3) was greatly higher than that in B.B Group(2.68mg/m 3).The different value of GSH PX between the time after 90d coal burning and before burning coal in R.C.Group was much higher than that in B.B.Group(p<0.05).SA,SOD and LYS also changed with the time,but in three groups the differences of them were not significant(P>0.05).The results of study indicated that use of coal biomass briquette would reduce the emission of SO 2 greatly than that of raw coal did which reduced the harmfulness of burning coal to health.