Résumé
Objective To understand the health effects and indoor air pollution caused by house decoration in Shizuichan city, Ningxia province. Methods 67 households which were newly decorated were chosen in the different districts of the city. 15days, one month, two months, three months, five months, six months after the decoration finished, formaldehyde, ammonia, benzene, radon in the indoor air were monitored and the questionnaire investigation was conducted. Results After two months, ammonia concentration reached the national standard limit. After 15 days, one month, two months, the rates of exceed limit of formaldehyde were 74.62%, 65.15% and 65.67% respectively, after 3 months ( in June), it was 90.62% and after 6 months, it was 71.21%. After 6 months, benzene concentration decreased slowly. The prevalence rates of throat, eye stimulation, fatigue and so on increased as the pollutants level increased. Conclusion In the investigated city, 6 months after the decoration finished, the indoor air pollution was still serious, which indicates it is not safe to move into those newly decorated rooms, even if after 6 months.