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《环境保护与循环经济》2015,(1)
<正>一、环保部与31省(区、市)签署《大气污染防治目标责任书》。1月7日,为贯彻落实《大气污染防治行动计划》,环保部与全国31个省(区、市)签署了《大气污染防治目标责任书》,明确了各地空气质量改善目标和重点工作任务。二、兰州"4·11"自来水污染事件。4月10日17时,兰州市主城区自来水供水单位威立雅水务集团公司检测出出厂水苯含量118微克/升,远超出国家限值的10微克/升。4月11日凌晨2时,苯检测值为200微克/升,属于严重超标。在随后召开的新闻发布会上,兰州市称周边地下含油污水是引起当地自流沟内水体苯超标的直接原因,将对相关责任单位和责任人进行进一步调查取 相似文献
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【案情】
2012年1月底,广西龙江河发生镉污染超标事件。专家估算,这次事件中镉泄露量约20吨,泄漏量之大国内罕见,龙江下游300公里河段受到波及。在下游柳州地区,市民们纷纷到超市抢购瓶装水。2月初,江苏省镇江市部分居民发现自来水中有异味,随后纷纷抢购瓶装水、桶装水。经专家组全面调查认定,这起自来水异味事件污染源由运输苯酚的韩籍船舶操作不当泄漏导致。 相似文献
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正历经四次审议和反复修改完善的《环境保护法》修订草案2014年4月24日表决通过,它被称为"中国现行法律中最严格的一部专业领域行政法"。这不禁让人想起不久前的兰州水污染事件,尽管被广泛曝光,但公民仍索赔艰难。兰州自来水苯超标污染事件发生后,针对涉事的兰州威立雅水务集团公司,五位兰州公民向当地法院提起侵权诉讼,要求兰州威立雅水务集团公司赔偿相应的损失,承担相应的民事责任。但当地的中级法院与基 相似文献
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正兰州近日自来水严重苯超标,最新的"初步判断"是,兰州石化20世纪80年代发生泄漏事故后污染物渗入地下,现在"忽然"渗入兰州威立雅水务集团水厂自流沟。随着事故的物理原因明晰化,公众越来越关心事故背后的管理责任,以及这种责任是否会受到认真追究。在4月11日的新闻发布会上,兰州市长袁占亭郑重表示:"对这次污水事件对广大市民生产生活带来的影响,我代表市委、市政府深表歉意。"当地主要领导固然"已经道歉",但道歉主要针对的是污染事件的社会影响,而回避了其中的政府责任。这样的道歉,兰州市民能接受吗? 相似文献
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正活性炭,因在近年来发生的水污染事件中担当重要的净化角色为广大受众群所熟知。从中石油吉林化学工业公司双苯厂的爆炸事故,到天脊集团的苯胺泄漏事故,再到兰州自来水苯超标事故,在善后处理时无不提到活性炭的作用。其实,这仅仅是活性炭用途冰山一角。它更多的还是用在水处理行业。2012年《生活饮用水卫生 相似文献
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鸡公山种子植物区系和植物资源 总被引:1,自引:0,他引:1
鸡公山自然保护区共有种子植物161科639属1450种,其植物区系组成丰富、成分复杂,植物区系成分以温带类型为主并具有明显的南北过渡性质。鸡公山自然保护区内的植物资源可分为8大类,许多植物具有重要的开发利用价值。 相似文献
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We know that animals are harmed in plant production. Unfortunately, though, we know very little about the scale of the problem. This matters for two reasons. First, we can’t decide how many resources to devote to the problem without a better sense of its scope. Second, this information shortage throws a wrench in arguments for veganism, since it’s always possible that a diet that contains animal products is complicit in fewer deaths than a diet that avoids them. In this paper, then, we have two aims: first, we want to collect and analyze all the available information about animal death associated with plant agriculture; second, we try to show just how difficult it’s to come up with a plausible estimate of how many animals are killed by plant agriculture, and not just because of a lack of empirical information. Additionally, we show that there are significant philosophical questions associated with interpreting the available data—questions such that different answers generate dramatically different estimates of the scope of the problem. Finally, we document current trends in plant agriculture that cause little or no collateral harm to animals, trends which suggest that field animal deaths are a historically contingent problem that in future may be reduced or eliminated altogether. 相似文献
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P. Stoltz 《The Environmentalist》1991,11(1):63-64
Conference Reports and Comment
Plant Tissue Culture and Biotechnology 相似文献17.
导语:在美国,志愿者是社会生活中的一部分,在环境教育领域也是一样。在美国旧金山市,一个很小的民间自然保护区——乌杜邦峡谷牧场中就活跃着一批环境教育志愿者。这些志愿者的热情参与是这个小小民间环境组织运作成功的重要因素之一,也许大家在阅读中会得到一些启发。 相似文献
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Understanding the problems of grazing land in vertisol areas and seeking long-lasting solutions is the central point where
mixed crop livestock is the second stay for the majority of the population. In order to understand this, the current study
was conducted at two sites, one with 0–4% slope and the other with 4–8% slope at Ginchi watershed, 80 km west of Addis Ababa,
Ethiopia. The specific objectives of the study were to quantify changes in plant species richness, biomass, plant cover, and
soil physical and hydrological properties. The grazing regimes were: moderate grazing (regulated), heavy grazing (free grazing),
and no grazing (closed to any grazing), which was considered the control treatment. The results showed that the biomass yield
in nongrazed plots was higher than in the grazed plots. However, the biomass yield in grazed plots improved over the years.
Species richness and percentage of dominant species attributes were better in medium grazed plots than the other treatments.
Soil compaction was higher in very heavily grazed plots than in nongrazed and medium-grazed plots. In contrast to that, the
soil water content and infiltration rate were better in nongrazed plots than in grazed plots. Soil loss in grazed plots decreased
with the increase of biomass yields and as the soil was more compacted by livestock trampling during the wet season. Finally
since the medium stocking rate is better in species richness and plant attributes, and lies between nongrazed and heavily
grazed plots in the rest of the measured parameters, it could be the appropriate stocking rate to practice by the smallholder
farmer. 相似文献
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皮洛德(PILOT)污水试验装置又称先导试验装置。它可以在新油区开发之前,通过对评价井的试验向人们提供最适合于该区的污水处理方法。该装置由过滤法、隔油法、气浮选法、斜板沉降法、水力旋流法等五套污水处理装置组成。本文就南海某油田试用情况,分别介绍了各套装置的流程及适用范围。 相似文献