• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Environmental toxicology and chemistry >PASSIVE SAMPLER-DERIVED AIR CONCENTRATIONS FOR POLYBROMINATED DIPHENYL ETHERS AND POLYCYCLIC AROMATIC HYDROCARBONS IN KUWAIT
【24h】

PASSIVE SAMPLER-DERIVED AIR CONCENTRATIONS FOR POLYBROMINATED DIPHENYL ETHERS AND POLYCYCLIC AROMATIC HYDROCARBONS IN KUWAIT

机译：科威特聚溴二苯醚和多环芳烃的被动采样空气浓度

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The present study presents, to our knowledge, the first ambient air data for a range of polybrominated diphenyl ethers (PBDEs) and polycyclic aromatic hydrocarbons (PAHs) in Kuwait. This was achieved by concurrently deploying polyurethane foam-disk passive samplers at 14 sites over a six-week period. Calculated mean Σ_5PBDE concentrations (sum of brominated diphenyl ethers [BDEs] 47, 99, 100, 153, and 154) ranged from 2.5 to 32 pg/m~3 of air, with BDE 47 contributing between 39 and 65% of the 睵BDEs detected. Differences in relative concentrations were observed between sites, with higher concentrations measured close to suspected sources. Calculated 2PAH concentrations ranged from 5 to 13 ng/m~3 (mean, 8.3 ng/m~3). The compound distribution was dominated by three- and four-ring compounds, which constituted approximately 90% of the ΣPAHs, with phen-anthrene contributing approximately 35%. However, the proportion of five- and six-ring PAHs increased around the "oil lakes," which were formed by the torching of oil wells during the 1991 Gulf War. The oil lakes are a reservoir of PAHs that will continue feeding the atmosphere as long as they remain untreated.
机译：据我们所知，本研究提供了科威特一系列范围内的多溴联苯醚（PBDEs）和多环芳烃（PAHs）的首个环境空气数据。这是通过在六个星期的时间内在14个地点同时部署聚氨酯泡沫盘式被动采样器来实现的。计算出的平均Σ_5PBDE浓度（溴化二苯醚[BDE] 47、99、100、153和154的总和）范围为2.5至32 pg / m〜3空气，其中BDE 47占the的39％至65％。检测到BDE。在站点之间观察到相对浓度差异，在可疑来源附近测得较高浓度。计算得出的2PAH浓度范围为5到13 ng / m〜3（平均8.3 ng / m〜3）。该化合物的分布主要由三环和四环化合物组成，约占ΣPAH的90％，而菲-蒽占约35％。但是，五环和六环PAH的比例在“油湖”周围增加了，“油湖”是1991年海湾战争期间油井被火烧形成的。油湖是多环芳烃的蓄水池，只要不加以处理，它们就会继续向大气中供气。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号