Health Risk Assessment of Main Air Pollutants in Yulin City

By analyzing the monitoring data of SO2,NO2 and PM10 from 2006 to 2011 with Health Risk Assessment Model recommended by U. S Environmental Protection Agency,the paper makes a health risk assessment on main air pollutants in Yulin. Results shows that 1) SO2 and NO2content,which varies with seasons,is higher in winter and lower in summer; 2) because of the dusty weather,the content of PM10 reaches peak in the first and second quarter of a yea; 3) the health risk caused by SO2 and NO2inhalation is from 1. 964 99 × 10-9to 9. 851 47 × 10-9,which is much less than the total health risk 4. 497 46 × 10-9to 1. 343 254 × 10-8; 4) the non-carcinogenic risk of man is the highest,following by women and children.