| 辽河水系沉积物中PAHs的分布特征及风险评估 |
| |
| 引用本文： | 武江越,刘征涛,周俊丽,高富.辽河水系沉积物中PAHs的分布特征及风险评估[J].环境科学,2012,33(12):4244-4250. |
| |
| 作者姓名： | 武江越 刘征涛 周俊丽 高富 |
| |
| 作者单位： | 1. 北京师范大学水科学研究院,北京100875 中国环境科学研究院,国家环境保护化学品生态效应与风险评估重点实验室,北京100012
2. 中国环境科学研究院,国家环境保护化学品生态效应与风险评估重点实验室,北京100012 |
| |
| 基金项目： | 国家水体污染控制与治理科技重大专项(2012ZX07501-003) |
| |
| 摘 要： | 采用GC-MS方法测定了辽河流域19个采样点位枯水期以及丰水期表层沉积物中多环芳烃（PAHs）的含量,共检出15种PAHs.枯水期ΣPAHs为123.5～21 233.4 ng·g-1,平均含量为3 208.1 ng·g-1;丰水期ΣPAHs为37.9～9 014.0ng·g-1,平均含量为1 612.0 ng·g-1.利用特征化合物指数法对PAHs进行源分析,主要来源是燃料燃烧.运用平均沉积物质量基准商（mSQG-Q）对辽河流域PAHs进行风险评价,芴和芘存在中低度生态效应;丰水期抚顺段L3-1有较强的负面效应,枯水期沈阳段L1-1点位、抚顺段L3-1和L3-2有较强的负面效应.
|
| 关 键 词： | 辽河 表层沉积物 多环芳烃 平均沉积物质量基准商 风险评价 |
| 收稿时间： | 2012/1/11 0:00:00 |
| 修稿时间： | 2012/6/25 0:00:00 |
Spatial Distribution and Risk Assessment of Polycyclic Aromatic Hydrocarbons in Partial Surface Sediments of Liaohe River |
| |
| WU Jiang-yue,LIU Zheng-tao,ZHOU Jun-li and GAO Fu.Spatial Distribution and Risk Assessment of Polycyclic Aromatic Hydrocarbons in Partial Surface Sediments of Liaohe River[J].Chinese Journal of Environmental Science,2012,33(12):4244-4250. |
| |
| Authors: | WU Jiang-yue LIU Zheng-tao ZHOU Jun-li and GAO Fu |
| |
| Institution: | College of Water Science, Beijing Normal University, Beijing 100875, China;Key Laboratory of Ecological Effect and Risk Assessment of Chemicals, Chinese Research Academy of Environmental Sciences, Beijing 100012, China;Key Laboratory of Ecological Effect and Risk Assessment of Chemicals, Chinese Research Academy of Environmental Sciences, Beijing 100012, China;Key Laboratory of Ecological Effect and Risk Assessment of Chemicals, Chinese Research Academy of Environmental Sciences, Beijing 100012, China;Key Laboratory of Ecological Effect and Risk Assessment of Chemicals, Chinese Research Academy of Environmental Sciences, Beijing 100012, China |
| |
| Abstract: | Nineteen surface sediment samples were collected from Liaohe River and analysed for polycyclic aromatic hydrocarbons (PAHs) with GC-MS. The concentrations of 15 detected PAH compounds ranged from 123.5 to 21233.4 ng·g-1 in dry season with the average concentration was 3208.1 ng·g-1; and were 37.9 to 9014.0 ng·g-1 in wet season with the average concentration was 1612.0 ng·g-1. The isomeric ratio method using characteristic compounds of PAHs for source analysis, and the main source was attributed to fuel combustion. Average commercial use of sediment quality benchmarks (mSQG-Q) on the PAHs risk assessment of Liaohe Basin was applied, fluorene and pyrene showed the potential of low-level ecological effects. In wet season, Fushun segment L3-1 points have a higher ecological risk. In dry season, Shenyang segment L1-1 point, Fushun segment L3-1 point and L3-2 point pose a strong negative effect. |
| |
| Keywords: | Liaohe River surface sediment polycyclic aromatic hydrocarbons (PAHs) mean sediment quality guideline(m SQG-Q) risk assessment |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《环境科学》浏览原始摘要信息 |
| 点击此处可从《环境科学》下载免费的PDF全文 |
|
