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太湖、巢湖沉積物中重金屬污染的總量特征及其區(qū)域性差異
摘要: 選取太湖、巢湖污染較為嚴(yán)重的區(qū)域?yàn)檠芯繉?duì)象,采集季節(jié)性沉積物柱狀樣,以0.5cm的間距高精度分割樣品,分析其中的Fe,Mn,Cu,Zn等重金屬元素的含量,對(duì)沉積物中重金屬的總量特征及季節(jié)性變化特征進(jìn)行了分析,得出以下結(jié)論:太湖、巢湖沉積物中重金屬的總量均呈現(xiàn)出Fe>Mn>Zn>Cu的特征,季節(jié)性變化幅度為Mn>Fe>Zn>Cu,重金屬元素的地球化學(xué)性質(zhì)對(duì)其季節(jié)性變化有很大的影響.同時(shí),不同的區(qū)域背景差異(如元素豐度、污染狀況等)導(dǎo)致了太湖、巢湖采樣點(diǎn)沉積物中重金屬元素季節(jié)性特征的差異. Abstract: The heavily polluted areas were chose as the sampling sites of Taihu lake and Chaohu lake. The sediments were sampled in different seasons, with the samples separated at 0.5cm intervals, Heavy metal contents (Fe, Mn, Cu, Zn)were analyzed, and the contents and seasonal variation characteristics of heavy metals were discussed. Comparisons were made between two lakes and the same lake in different sampling sites. The results show that the order of the heavy metal concentration is Fe > Mn > Zn > Cu, and the order of variation range is Mn > Fe > Zn > Cu. In large extent, the seasonal variation range is affected by the geochemical characteristics of the heavy metals. The different characteristics of heavy metal elements can be attributed to the regional differences and different pollution extents. 作 者: 鄭樂(lè)平 劉玉梅 錢(qián)顯文 施曉燕 ZHENG Le-ping LIU Yu-mei QIAN Xian-wen SHI Xiao-yan 作者單位: 鄭樂(lè)平,ZHENG Le-ping(上海大學(xué)環(huán)境科學(xué)與工程系,上海,200444;環(huán)境地球化學(xué)國(guó)家重點(diǎn)實(shí)驗(yàn)室,中國(guó)科學(xué)院地球化學(xué)研究所,貴陽(yáng),550002)劉玉梅,錢(qián)顯文,施曉燕,LIU Yu-mei,QIAN Xian-wen,SHI Xiao-yan(上海大學(xué)環(huán)境科學(xué)與工程系,上海,200444)
期 刊: 環(huán)境化學(xué) ISTICPKU Journal: ENVIRONMENTAL CHEMISTRY 年,卷(期): 2009, 28(6) 分類(lèi)號(hào): X13 關(guān)鍵詞: 沉積物 重金屬 總量特征 太湖 巢湖. Keywords: sediment heavy metals content characteristics Taihu lake Chaohu lake.【太湖、巢湖沉積物中重金屬污染的總量特征及其區(qū)域性差異】相關(guān)文章:
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