极地研究

极地研究 ›› 2008, Vol. 20 ›› Issue (3): 240-247.

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南极企鹅粪土沉积柱样、蛋卵中OCPs、PCBs含量分布及其环境意义

石超英;孙维萍;卢冰;蔡明红;王自磐;   

  • 出版日期:2008-09-30 发布日期:2008-09-30

DISTRIBUTION AND ENVIRONMENT SIGNIFICANCE OF OCPs、PCBs IN PYGOSCELIS PAPUA DROPPING SOIL CORES AND EGGS

  • Online:2008-09-30 Published:2008-09-30

PDF (PC)

1810

被引次数

15

摘要：

对南极阿德雷岛企鹅栖息地粪土层进行210Pb测年,同时采用气相色谱-电子捕获检测器(GC-ECD)内标定量法测定了企鹅栖息地粪土混合地层和企鹅蛋卵中有机氯污染物含量,粪土混合地层中有机氯污染物最高浓度:表层PCBs为0.92ng/g,HCHs为0.42ng/g,DDTs在0.70ng/g,与非栖息地相比较,研究结果显示,通过鸟类活动的粪土混合地层(营巢和粪便)输入PCBs和OCPs含量比无鸟类生命途径的土壤相对要高。企鹅蛋卵样∑PCB在0.4—10.2ng/g,∑DDT2.4—10.3ng/g,HCB0.1—9.4ng/g,∑HCH0.1—0.5ng/g,总积蓄水平依次为:∑PCB>∑DDT>HCB>∑HCH。

关键词: 南极;企鹅;粪土沉积柱样;210Pb定年;有机氯污染物

Abstract:

210Pb dating for stratigraph in penguin dropping amended soil has been measured,and organochlorine pesticides content in dropping amended soil stratigraph and penguin eggs by GC-ECD. Maximal concentration of organochlorine pesticides in stratigraph appear in surface: PCBs are 0.92 ng/g,HCHs 0.42 ng/g,and DDTs 0.70 ng/g. Comparing with non-dropping amended soil,this research showed that input of PCBs and OCPs in dropping amended soil stratigraph (nidation and dejecta) with activity of birds were much more than that with no birds. ∑PCB in penguin eggs are 0.4—10.2 ng/g,∑DDT 2.4—10.3 ng/g,HCB 0.1—9.4 ng/g,and ∑HCH 0.1—0.5 ng/g,while total accumulation levels ordinally are: ∑PCB>∑DDT>HCB>∑HCH.