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Elevated levels of polybrominated diphenyl ethers (PBDEs) in fish from Lake Mjøsa, Norway 总被引:1,自引:0,他引:1
Mariussen E Fjeld E Breivik K Steinnes E Borgen A Kjellberg G Schlabach M 《The Science of the total environment》2008,390(1):132-141
Surprisingly high levels of PBDEs (polybrominated diphenyl ethers) in fish from Lake Mj?sa watercourse initialized a more detailed study of PBDE contamination in the Lake Mj?sa region as well as fish from other lakes in southeast Norway. With exception of the fish from Lake Mj?sa, the sum concentration of PBDEs in trout was, on a wet weight (ww) basis, in the range of 0.3-40 ng/g (21-1215 ng/g lipid weight (lw)) in fish fillet and 39-446 ng/g (125-915 ng/g lw) in burbot liver. The PBDE levels in fish from Lake Mj?sa, was found in the range of 72-1120 ng/g ww (2348-16,753 ng/g lw) in trout and 156-2265 ng/g ww (4201-45,144 ng/g lw) in burbot. It was later confirmed that the elevated levels in Lake Mj?sa were mainly caused by the release of PBDEs to the water from a textile manufacturer in the town of Lillehammer. In addition to PBDE levels in fish we also present information on the spatial distribution of PBDEs in air around the Mj?sa watercourse, based on the complementary use of passive air samples and analysis of moss, including data on measured air concentrations. The results confirm the presence of an active source of atmospheric PBDEs in the region of Lillehammer. Although this source appears to have a limited impact on atmospheric levels towards the southern reaches of the lake, it could still be a significant source of PBDEs to the lake as a whole. However, more research is needed to better understand and quantify the relative importance of various sources and pathways for which PBDEs enter Lake Mj?sa in order to support the development of future control strategies. 相似文献
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Patrick Hill 《建筑机械》2008,(12):54-55
参与阿拉伯联合酋长国迪拜大楼建设的Pega升降机是工作在这座最高的人造世界巅峰上的机械。Patrick Hill报道了它所创造的世界纪录和其他升降机新闻。 相似文献
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《Planning》2014,(36)
<正>只听张亦弛十万火急地吹道:我遨游太空时,降落在了月球上,遇见了正在捣药的玉兔。太久没有人来看玉兔了,它见到我后十分开心,拉着我游遍了月球。临别时,玉兔送我一粒药丸,我毫不犹豫地塞到嘴里……我一觉醒来,感觉头重脚轻,下意识地摸了摸头。突然,我发现自己的睡帽变长了,已经快顶到天花板了,还把我挂在墙上的玩具给撞了下来。这时, 相似文献
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当今世界第一高楼──吉隆波双子塔楼,建成于 1997年,高达88层、 452米,它是一幢占地面积14.15英亩,建筑面积450万平方英尺的综合性办公楼建筑。该建筑内部设有现代化的火灾自动报警系统和自动灭火系统,采用由美国奥的斯公司制造的消防电梯和日本新制钢公司制造的月星牌防火门,它们均是按国际公认的防火标准设计的。然而,美中不足的是,由于该建筑外型设计似塔状尖顶形,加上顶部的防雷、通讯桅杆,所以大厦顶层不可能设置可停放消防直升机的停机平台。可是,建筑师、工程师在双塔的第41层和42层设计了一个空中… 相似文献
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三菱电机的象征,地区的界标吉川说,SOLAE试验塔拥有完善的功能,不仅为三菱电机的象征,也堪称稻泽地区的界标。最近,一个高度173m,相当于普通40层大楼的世界上最高的电梯试验塔由日本三菱电机公司电梯总厂——稻泽制作所(爱知县稻泽市)建造完成。随着建筑物的进一步高层化和对高速、大容量电梯的需求在全世界范围内不断扩大,三菱公司为顺应时代趋势,为开发高速、高性能的电梯而建造此试验塔。 相似文献
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《Planning》2014,(2)
<正>只听谢晓芸喜忧参半地吹道:话说有一日,扑通一声,一瓶来历不明的矿泉水落在弟弟面前,口渴的弟弟咕噜一口就喝完了。喝完后,他竟嗖的一声,以比火箭还快的速度长成了世界上个子最高的人!问他有多高?没有量过!因为坐着火箭飞了很久都还看不到他的腰!我和他交流可困难了,给他打电话,结果是您拨打的号码不在服务区,害得我只好向国家申请,发射一颗专用通讯卫星,才可以和他说上话。不仅如此,他走起路来更困难:既要 相似文献