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1.
空气污染物主要包括氡、甲醛、氨、苯和总挥发性有机物(TVOC),以及聚氨酯涂料中游离甲苯二异氰酸酯(TDI)。文章对苯污染的来源、危害与检测方法进行了探讨。  相似文献   

2.
空气污染物常见有氡、氨、甲醛、苯、TVOC.文章对甲醛污染的来源、危害与检测方法进行探讨.  相似文献   

3.
谈室内空气污染与检测   总被引:1,自引:0,他引:1  
室内空气污染物数量众多,常见的是甲醛、氨、苯、TVOC、氡5种,文章简单介绍了其来源与危害,同时对我国现行的两部关于室内空气检测标准进行了说明和分析。  相似文献   

4.
《价值工程》2017,(23):175-176
总挥发性有机化合物(TVOC)指的是芳香烃、醛类、酮类、胺类等有机化合物的总称。长期处在TVOC环境,必然会对人体带来极为不利的影响,所以开展好室内空气中TVOC控制工作十分重要。文章通过阐述TVOC检测,分析室内空气中TVOC检测的影响因素,对室内空气中TVOC检测的质量控制展开探讨,旨在为室内空气中TVOC检测的有序进行研究适用提供一些思路。  相似文献   

5.
储旭东  杨凤 《价值工程》2012,31(4):56-57
本文介绍了南京工程学院室内检测公司在对其学院教职工家属住宅区进行室内环境检测所发现的污染问题,研究了污染气体甲醛、氨、苯及TVOC的来源,并对其处理方法做相关介绍,给南京工程学院教职工提出房屋污染气体处理建设性的意见。  相似文献   

6.
一、概述 宝化梅山分公司化工回收车间粗苯工段在生产过程中,每天对轻苯终点进行5次采样检测,得到5个检测数据.粗苯工段原应用的控制图为X图,是将轻苯质量指标中终点的规格上限150℃确定为上控制限,直接对每个检测数据在控制图上打点绘制,超出上控制限即判断过程异常.这样绘制的控制图,其缺点是根本无法发现生产过程中的异常因素,及时发出警报.  相似文献   

7.
现代装修中大量使用了复合板材、胶粘剂和油漆,这些都是甲醛、苯、氨、TVOC、甲苯、二甲苯等毒气的主要污染源,其中苯化合物已经被世界卫生组织确定为强致癌物质,  相似文献   

8.
近年来,由于有些建筑材料、装修材料的有害物质含量没有得到有效控制,多种化学物质进入室内环境,造成室内空气质量恶化,严重污染了室内环境,影响了人民群众的身心健康。本文结合现行室内环境污染控制标准和规范,对规范中主控的甲醛、氨、苯、TVOC、氡等几种污染物的特性、危害及来源、检测方法等分别做简单的介绍,并对室内环境污染物的控制和治理方法进行了总结。  相似文献   

9.
通过实验,分析了在应用气相色谱法测定室内空气中TVOC结果的影响因素,包括采样环境、采样体积、吸附管活化程度、采样体积、气相色谱仪参数的设置、热解吸仪分析条件等,以保证测量结果的准确性。  相似文献   

10.
陈宁 《楼市》2005,(18)
室内空气污染物包括:甲醛、苯、二甲苯、氨、TVOC和氡气。室内空气污染物主要来源于:建筑及室内装饰材料、室外污染物、燃烧产物和人本身活动。其中室内装饰材料及家具的污染是目前造成室内空气污染的主要方面,油漆、胶合板、刨花板、泡沫填料、内墙涂料、塑料贴面等材料中含挥发性有机化合物(TVOC)高达300多种。  相似文献   

11.
This paper outlines the ICT statistical developments that the ABS has undertaken over recent years. These developments have been on both the supply side (ICT industry) and the demand side (use of IT by sector). The content of ABS ICT surveys has changed significantly over the last few years and are expected to develop further in line with industry changes and emerging policy needs.
Recent developments in household collections have been the inclusion of IT use questions in the 2001 Census of Population and Housing and in various ABS social surveys such as Children's Participation in Culture and Leisure Activities. Annual business IT use surveys are now conducted and include topics such as Internet commerce and IT security. Biennial ICT industry surveys are conducted to provide data on ICT production, imports and exports, ICT industry employment, performance and structure information. An Internet activity survey is run every six months and provides regional Internet access details and infrastructure details on Internet service providers.
A major development for 2002–03 will be the compilation of an ICT satellite account. ABS intends to produce an ICT Information Development Plan to guide its future statistical development work in the ICT field.  相似文献   

12.
Several US counties and local governments have recently considered a novel solution to the foreclosure crisis. They plan to use eminent domain to compel the owners of mortgage debt—and specifically of private‐label mortgage‐backed securities—to sell the debt to the government at a price reflecting the loan's market value. The government would then restructure the debt and resell it to new investors. The plans are striking because—in contrast to both development‐driven eminent domain and the federal subprime bank bailout—they would force investors to assume asset devaluation and increased long‐term risk. Notably, the plans have emerged as an instance of financialization‐focused politics in suburbs and suburban cities of color, specifically majority‐black and ‐Latino/a suburbs. Local support for the plans, we argue, is rooted in the long‐term disinvestment of these ‘suburbs of exception', which became targets of subprime lending and eventually sites where the ‘financial exception' has been localized. But these demographic shifts, fragmentation and fiscal pressures have at the same time created a suburban political terrain in which the plans have gained their strongest political support.  相似文献   

13.
Serendipity – the notion of making surprising and valuable discoveries – plays a major role in the success of individuals and organizations alike. Previous research has established the importance of serendipity and identified important individual- and organizational-level antecedents. However, the literature has been dispersed and the boundaries of the concept have been blurry, leading to a lack of conceptual clarity and structure, and thus limiting validity and managerial actionability. Based on a systematic literature review, I synthesize existing management-related research on serendipity and explicate the emergence and composition of serendipity in the organizational context. I first identify three necessary conditions that differentiate serendipity from related concepts such as luck or targeted innovation: agency, surprise, and value. Then, I draw from the literature on sensemaking, event-based theorizing, and quantum-based approaches to management to conceptualize the process of cultivating serendipity in the organizational context as a process of enabling potentiality and materialization, and develop a multi-level theory of (cultivating) serendipity. This conceptualization contributes to our collective understanding of how, why, and when (i.e., under what conditions) organizations can leverage the value in the unexpected, which opens up fruitful avenues for further research.  相似文献   

14.
NGOs in Bangladesh have been recognized as effective change agents in the socio-economic arena throughout the world. Their contributions in micro credit, non-formal education and primary health care are widely known. NGOs play a significant role in society. NGO accountability, as a result, has become a critical issue. NGO accountability in Bangladesh has been examined here in relation to patrons, clients and themselves. Of the three relationships only accountability to patrons is in a near satisfactory state. Accountability to clients is handicapped by lack of opportunities of beneficiaries to participate meaningfully in NGO policy making. Accountability to themselves is adversely affected due to the adherence to a strictly hierarchical system and the influence of founding and charismatic NGO leaders.  相似文献   

15.
There has been much discussion regarding the possible decline and weakening of national systems of human resource management (HRM). Yet, culture and institutions are often cited as the major stumbling blocks to this outcome. Such constraints may dissipate in the analysis, particularly if ‘regional clusters’ are considered where geographic and cultural closeness and ‘openness’ to similar economic pressures exist. In such cases, it might be postulated that convergence in HRM will occur. We argue that China, Japan and South Korea represent such a cluster. This article examines these countries, to see if a degree of convergence is taking place and if it is towards an identifiable ‘Asian’ model of HRM. A model of change is presented that distinguishes between levels of occurrence and acceptance. Details of the development and practice of HRM in each country are then set out. The article ends with a discussion and implications section and a brief conclusion.  相似文献   

16.
Based on a review of established U.S. management journals (1995–2003), six schools of thought are identified within the Anglo-American M&;A research: “Capital Market”, “Principal/Agent”, “Industrial Organization”, “Organizational Behavior”, “Human Resources” and “Strategic Management”. The literature review shows that the definition of M&;A success, the methods applied, and insights from empirical research differ according to the respective school of thought. Empirical studies focus on the resource combinations of merger partners, the specific circumstances of merger negotiations, and on integration management as antecedents of merger performance. Unfortunately, empirical findings have not yet provided reliable explanations for M&;A success. Based on the current state of Anglo-American M&;A research, the authors discuss implications for business practice, identify research gaps, and propose areas for future research.  相似文献   

17.
A new Office for National Statistics was created in the United Kingdom in 1996 following a series of developments designed to strengthen the relevance and integrity of statistics. This paper describes these fundamental changes and sets out a blueprint for future progress. It also sets current developments in the United Kingdom in an historical and international context.  相似文献   

18.
We have considerable understanding of the obstacles that women engineers encounter and the reasons that they leave the field, but we know less about what enables them to remain. Adopting an interpretivist approach, this article examines how a group of British women engineers in two FTSE 100 companies account for “staying on” in their male‐dominated work settings. We delineate four specific forms of help that facilitate women's retention in the field. We argue that exposure to help leads to women developing a habitus that enables them to continue working in engineering. To conclude, we draw on our findings to outline HR practices that will facilitate supportive relationships in the workplace and pave the way towards developing more positive organisational climates.  相似文献   

19.
杨明 《价值工程》2012,31(7):16-17
物流业经过诸多年的发展目前已经成为最热门的行业之一,物流企业的注册数量也与日俱增,达到前所未有的规模。毋庸置疑,任何企业都希望自己迅速做强做大,并成为真正现代物流企业的典型代表,要实现这一目标一个首要问题就是要解决现代物流企业的发展观问题。  相似文献   

20.
丛广英  乔炜君 《价值工程》2010,29(6):245-245
大体积混凝土的裂缝问题是实际工程中长期困扰工程技术人员的问题,其控制技术的研究是混凝土结构研究的热点问题,具有重大的学术价值和潜伏的工程背景。  相似文献   

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