新装修居室环境中甲醛的遗传毒性

通过环境卫生学调查和遗传毒性试验，了解甲醛对人体健康的危害性. 经随机抽样选择南宁市新装修的130户居室进行ρ(甲醛)测定，并对其中甲醛超标最严重的25户家庭成员共59人进行健康问卷调查；用单细胞凝胶电泳(彗星试验)方法和微核试验方法检测甲醛对体外培养人体淋巴细胞的遗传损伤作用. 结果表明:在南宁市130户新装修的居室环境中，甲醛超标率达73.1%，甲醛超标组居民的呼吸道和神经系统不良反应发生率升高，随着入住时间的延长，ρ(甲醛)下降，不良反应发生率也下降. 体外培养人体淋巴细胞试验结果显示:与对照组相比，甲醛低、中和高剂量组的彗星细胞发生率分别增加39.2%，80.6%和46.0%，彗星细胞尾长度增加23.9，40.6和28.3 μm，微核率增加218.6%，565.0%和647.0%；甲醛超标会使居住人群出现呼吸系统和神经系统疾病，随着时间的推移，室内ρ(甲醛)降低，对人体健康影响程度减少；甲醛可致体外培养人淋体巴细胞的遗传损伤. 

Study on Formaldehyde Heredity Toxicity in Indoor Environments of Recently Renovated Houses

The goal of this study was to use environmental health surveys and heredity toxicity analysis to understand the effects of indoor environmental formaldehyde pollution on habitants' health.130 houses in Nanning City renovated in the last three years were selected as research objects by randomized sampling method.25 high formaldehyde-level houses were selected for trace surveys,which included indoor environmental pollution and habitants' health.Human lymphatic cells were divided into four groups including neg...