处置公路危险化学品槽车泄漏对环境的影响

本文从公路危险化学品槽车泄漏事故的特点出发,并以2012年梅河高速龙川县佗城镇亨渡路段苯酚泄漏事故为例,就危险化学品槽车泄漏事故对环境的影响及处置措施进行了分析与探讨。     

Understanding the sources and composition of the incremental excess of fine particles across multiple sampling locations in one air shed

Well-designed health studies and the development of effective regulatory policies need to rely on an understanding of the incremental differences in particulate matter concentrations and their sources. Although only a limited number of studies have been conducted to examine spatial differences in sources to particulate matter within an air shed, routine monitoring data can be used to better understand these differences. Measurements from the US EPA Chemical Speciation Network （CSN） collected between 2002-2008 were analyzed to demonstrate the utility of regulatory data across three sites located within 100 km of each other. Trends in concentrations, source contribution, and incremental excesses across three sites were investigated using the Positive Matrix Factorization model. Similar yearly trends in chemical composition were observed across all sites, however, excesses of organic matter and elemental carbon were observed in the urban center that originated from local emissions of mobile sources and biomass buming. Secondary sulfate and secondary nitrate constituted over half of the PM2.5 with no spatial differences observed across sites. For these components, the excess of emissions from industrial sources could be directly quantified. This study demonstrates that CSN data from multiple sites can be successfully used to derive consistent source profiles and source contributions for regional pollution, and that CSN data can be used to quantify incremental differences in source contributions of across these sites. The analysis strategy can be used in other regions of the world to take advantage of existing ambient particulate matter monitoring data to better the understanding of spatial differences in source contributions within a given air shed.     

危险化学品泄漏事故处置

为了降低危险化学品泄漏事故造成的损失和危害,本文系统介绍了危险化学品泄漏事故的应急处置措施,并根据泄漏物质的危险特性,分八大类介绍了不同物质的最简便、有效的泄漏处置方法.     

光气泄漏应急抢险技术(光气捕消粉和捕消器的研制)

光气泄漏应急抢险技术(光气捕消粉和捕消器的研究)是由北京市劳动保护科学研究所研制. 1.研究内容: (1)研制光气捕消剂粉体配方,以适量捕消光气的要求.     

液氨钢瓶泄漏毒害区域估算与应急措施

近期,氨气泄漏事故时有发生,给人民群众的生命财产安全带来极大的威胁和影响,如何预防和控制氨气泄漏事故的发生已成为氨气生产、经营、储存、运输和使用企业单位的当务之急.     

由"规定时间"到"任选时间"——巴陵石化环氧树脂事业部应急响应预案演练纪实

一个星期天的上午,巴陵石化公司环氧树脂事业部进行了一场特殊的演练--应急响应预案演练.这是该事业部增强事故预案演练的针对性,将事故演练由"规定时间"转向"任选时间"采取的系列举措之一. 上午8时30分,该事业部针对设想的离子膜车间氯干燥岗位、盐水车间液氯冷冻岗位"氯气泄漏"的突发情况,紧急启动事业部级防氯气泄漏事故预案.成立以事业部值班领导为指挥长的应急指挥部,立即通知事业部领导、相关职能管理和车间人员、抢险应急分队,所有临时通知人员在规定时间内赶到"事故"现场,按照各自职责有条不紊进行应急处理.     

“魔鬼的汗珠”——原油泄漏：生态环境的超级杀手

中国是最早钻井取油的国家。根据《梦溪笔谈》所载，“生于水际砂石，与泉水相杂，惘惘而出”，“石油”之名由此而生。称它为“魔鬼的汗珠”则是因为它是魔法般神奇的功能，外国人便赋予它如此称呼。“魔鬼的汗珠”集结着上万年生物精灵的灵魂，是大自然母体孕育的宝藏。它赐给聪明的人类以汽油、天然气，以动力的角色推动着人类的进步与发展。然而，魇鬼一旦翻脸，魔法就会变为魔爪，搅乱着海底世界的安宁。     

“四步五察法”在初中美术课堂教学中优化评价的小试验

在做豆腐时,人们总是用水浸泡黄豆后,磨成豆浆,经煮沸然后点卤,这个时候白花花的豆腐脑就析出来了,再挤出水分,就形成了豆腐。其中有一个重要的步骤,就是点卤。课堂评价在课程改革中起着导向与监控的重要作用,是课程改革成败的关键环节。课堂教学中的评价正如"点卤"。     

四个量子点热电输运性质的研究

采用非平衡格林函数的方法来求解量子输运问题。考虑一个由四个单能级量子点和AB环组成的系统,研究该系统的热电特性。在这样的一个量子点系统中,通过调节量子点之间的能量间距、量子点间的耦合系数和系统的温度来研究该系统的热电特性。     

点型开发建设项目水保方案技术要点及问题探讨——以江苏淮安民用机场工程为例

近年来,水土保持工作发展较快,现行的标准对指导水土保持方案的编制起到了应有的作用,但由于相关标准及规范涉及面广、更新较快,导致方案编制过程中仍存在不少问题。本文以江苏淮安民用机场工程为例,同时总结近年来水土保持编写、审查及实施经验,并结合正在编制的有关规程规范,提出点型工程水土保持方案编制中的要点及存在的问题。