CAJ | 학술논문

铀元素是具有毒性和放射性的锕系元素之一，对区域环境和人体健康具有极大的危害，开展铀元素污染评价具有重要的现实意义。以龙门山地区主要水系为主要研究对象，采集了大量的水系沉积物样品，对该地区的铀元素分布特征进行了研究。研究表明，大渡河水系沉积物中铀平均质量分数为5.50 mg/kg，绵远河水系沉积物中的铀平均质量分数为3.07 mg/kg，其余河流水系沉积物中铀含量均较低。通过龙门山地区水系沉积物中铀元素分布特征与龙门山地区矿产分布对比发现，煤矿、磷矿开发区是水系主要铀元素来源。
유원소시구유독성화방사성적아계원소지일，대구역배경화인체건강구유겁대적위해，개전유원소오염평개구유중요적현실의의。이룡문산지구주요수계위주요연구대상，채집료대량적수계침적물양품，대해지구적유원소분포특정진행료연구。연구표명，대도하수계침적물중유평균질량분수위5.50 mg/kg，면원하수계침적물중적유평균질량분수위3.07 mg/kg，기여하류수계침적물중유함량균교저。통과룡문산지구수계침적물중유원소분포특정여룡문산지구광산분포대비발현，매광、린광개발구시수계주요유원소래원。
Uranium belongs to actinide, which has toxicity and radioactivity. It has strong negative influences on regional environment and people’s physical fitness,which makes it significantly meaningful to assess the pollution of uranium. This paper mainly studies the river system and the distribution of Uranium of longmen mountain based on the sediment samples. According to the research,the Uranium average content of stream sediment in dadu river is 5. 50 mg/kg,and it is 3. 07 mg/kg in mianyuan river,and the content in the sediment of rest river systems is lower. After comparison between distribution of Uranium and mineral in this area,our study shows that the main resources of Uranium are coal and phosphate development district.