摘要
目的探索研究T市郊区一水沟和CH市一贮水池引起青蛙畸形的环境内分泌干扰物。方法采集出现过大量畸形青蛙的水样 ,经H103树脂浓集 ,浓集水样在经进一步浓缩净化 ,经过衍生化反应 ,反应产物直接用GC/MS测定内分泌干扰物。水样浓集物用环境雌激素酵母测评系统测定其雌激素活性。结果在畸形青蛙的水样浓集物中检出了内分泌干扰物双酚A(5.6×10 -3～1.52μg/L)和壬基酚(0.46～0.58μg/L)。用环境雌激素酵母测评系统检测水样浓集物中雌激素活性为阳性或可疑阳性,其结果与GC/MS测定结果是一致的。结论T市郊区的水沟里和CH市贮水池中出现大量畸形青蛙 ,从环境现场调查和水质化学分析结果看。
Objective To study endocrine disruptor chemicals causing malformed frogs in an irrigation canal in T city and a pool in CH city. Methods Water samples collected from an irrigation canal in T city and a pool in CH city where malformed frogs were found were concentrated through H103 resin. The concentrated samples were purified and derivated. The endocrine disruptor chemicals in the derivatives were determined by GC/MS and the estrogenic activities in concentrated water samples were assessed by the recombinant yeast estrogen system (RYES). Results Endocrine disruptor chemicals bisphenol_A (5.6×10-3～1.52 μg/L) and nonylphenol (0.46～0.58 μg/L) were found in the concentrated water samples of the irrigation canal in T city and the pool in CH city. RYES showed that the estrogenic activities were positive and this result accorded with the data given by GC/MS. Conclusion The results indicated that the cause resulted in malformation of frogs in the irrigation canal in T city and the pool in CH city might be related to endocrine disruptor chemicals.
出处
《环境与健康杂志》
CAS
CSCD
北大核心
2002年第6期419-421,共3页
Journal of Environment and Health
基金
国家自然科学基金重点项目 (30030120)
