%0 Journal Article
%T Effect Factors for Mercury Accumulation to Natural Surface Coatings and Analysis Its Forms of Occurrence<br>天然水体生物膜中汞的蓄积因素及汞的存在形态
%A CHENG Jin-ping
%A LIU Cai-e
%A ZHENG Min
%A DING Zhen-hua
%A WANG Wen-hua
%A <br>程金平
%A 刘彩娥
%A 郑敏
%A 丁振华
%A 王文华
%J 环境科学
%D 2006
%I 
%X In order to probe to the factors for mercury accumulation to natural surface coating, we study the concentration of mercury in Huangpu River surface coatings developed for different depth, different grown days and different seasons and analysis mercury forms of occurrence. The result show the organic matter in biofilm is much high (7.5%-14.5%). Growth time, depth and seasons are all important factors for mercury accumulation to surface coating. Illumination and temperature was stronger and the growth day was longer, The concentration of mercury in biofilm was higher. The mercury forms of occurrence in surface coating were mainly residual matter bound mercury (41.98%) and organic acids bound mercury (27.89%). The percentage of carbonate bound mercury (10.17%) and ion exchangeable mercury (5.33%) was little.
%K surface coating
%K mercury
%K accumulation
%K forms of occurrence<br>生物膜
%K 汞
%K 蓄积
%K 存在形态
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=3F885A4A1DD30C42&yid=37904DC365DD7266&vid=DB817633AA4F79B9&iid=DF92D298D3FF1E6E&sid=1D9D6C66A0E73D63&eid=113224FCB0E3054C&journal_id=0250-3301&journal_name=环境科学&referenced_num=0&reference_num=8