| 南极菲尔德斯半岛多环境介质中多环芳烃分布特征及环境行为研究 |
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| 引用本文： | 马新东,姚子伟,王震,贺广凯,葛林科,方晓丹,那广水.南极菲尔德斯半岛多环境介质中多环芳烃分布特征及环境行为研究[J].极地研究,2014,26(3):285-291. |
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| 作者姓名： | 马新东 姚子伟 王震 贺广凯 葛林科 方晓丹 那广水 |
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| 作者单位： | 国家海洋环境检测中心，国家海洋局近海岸海域生态环境重点实验室 |
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| 基金项目： | 南北极环境综合考察与评估专项(CHINARE2012-02-01,2012-03-04)资助 |
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| 摘 要： | 对南极菲尔德斯半岛地区采集的水体、土壤、苔藓、粪便和生物介质中16种多环芳烃(PAHs)进行了分析,考察了不同环境介质中PAHs的含量分布特征及其环境行为。结果表明,水体、土壤、苔藓、粪便和生物中∑PAHs浓度分别为34.9—346 ng·g-1(mean=184)、68.9—374 ng·g-1(mean=188)、122—894 ng·g-1(mean=251)、197—293 ng·g-1(mean=245)和137—443 ng·g-1(mean=265)。与其他地区相比,5种介质中2+3环PAHs的比例超过0.5,而5+6环PAHs的比例则0.2,说明大气传输是菲尔德斯半岛地区PAHs来源的主要途径。通过PAHs在土壤-苔藓(logQSM)、生物-海水(logQOW)和企鹅肌肉-企鹅粪土(logQPD)中的浓度比值与其理化参数的研究发现,logQSM与logpoL和logKOA成显著线性关系,logQOW和logQPD与logKOW成显著线性关系,表明不同环境介质间污染物浓度比值可以看作PAHs在极地偏远地区气-固分配行为以及在生物体内分配行为的镜像。
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| 关 键 词： | 多环芳烃 菲尔德斯半岛 分配行为 |
| 收稿时间： | 2013-06-26 |
DISTRIBUTION AND ENVIRONMENTAL BEHAVIOR OF PAHs IN DIFFERENT MATRIXESON THEFILDES PENINSULA,ANTARCTICA |
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| Ma Xindong,Yao Ziwei,Wang Zhen,He Guangkai,Fang Xiaodan,Na Guangshui.DISTRIBUTION AND ENVIRONMENTAL BEHAVIOR OF PAHs IN DIFFERENT MATRIXESON THEFILDES PENINSULA,ANTARCTICA[J].Chinese Journal of Polar Research,2014,26(3):285-291. |
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| Authors: | Ma Xindong Yao Ziwei Wang Zhen He Guangkai Fang Xiaodan Na Guangshui |
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| Institution: | State Oceanic Administration Key Laboratory for Ecological Environment in Coastal Areas, National Marine Environmental Monitoring Center, Dalian, 116023, China |
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| Abstract: | Water, Sediment, moss, penguin-dropping and organism samples were collected from Fildes Peninsula to investigate the distribution and environmental behavior of sixteen polycyclic aromatic hydrocarbons. The results indicated that the total PAHs concentrations in water, sediment, moss, penguin-dropping and organisms were 34.9~346 ng/L (mean=184), 68.9~374 ng/g (mean=188), 122~894 ng/g (mean=251), 197~293 ng/g (mean=245) and 137~443 ng/g (mean=265), respectively. Compared with the other regions, the proportions of 2+3 ring PAHs to the total PAHs were higher than 0.5 whereas the proportions of 5 + 6 ring PAHs was below 0.2 in all compartments, which implied the atmospheric transfer was the main source of PAHs. Significant log/log-linear relationships between the soil/moss quotient (QSM) and the sub-cooled liquid vapor pressure (p°L) and octanol-air partition coefficient (KOA) were observed. Also the similar significant log/log-linear relationships between octanol-water partition coefficient (KOW) the bitoa/water quotient (QOW) and the penguin-organism/penguin-dropping quotient (QPD) were observed. The results indicated that the concentration rations between different media could be seen as a “mirror image” of distribution behaviors of PAHs in the remote Polar Regions. |
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| Keywords: | Polycyclic aromatic hydrocarbons (PAHs) Fildes Peninsula distribution behavior |
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