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1.
    
We studied dampness and mold in China in relation to rhinitis, ocular, throat and dermal symptoms, headache and fatigue. A questionnaire study was performed in six cities including 36 541 randomized parents of young children. Seven self‐reported signs of dampness were evaluated. Multilevel logistic regression models were used to calculate odds ratios (ORs). Totally, 3.1% had weekly rhinitis, 2.8% eye, 4.1% throat and 4.8% skin symptoms, 3.0% headache and 13.9% fatigue. Overall, 6.3% of the homes had mold, 11.1% damp stains, 35.3% damp bed clothing, 12.8% water damage, 45.4% window pane condensation, 11.1% mold odor, and 37.5% humid air. All dampness signs were associated with symptoms (ORs from 1.2 to 4.6; P < 0.001), including rhinitis (ORs from 1.4 to 3.2; P < 0.001), and ORs increased by number of dampness signs. The strongest associations were for mold odor (ORs from 2.3 to 4.6) and humid air (ORs from 2.8 to 4.8). Associations were stronger among men and stronger in Beijing as compared to south China. In conclusion, dampness and mold are common in Chinese homes and associated with rhinitis and ocular, throat and dermal symptoms, headache and fatigue. Men can be more sensitive to dampness and health effects of dampness can be stronger in northern China.  相似文献   

2.
影响生产率的要素--室内环境品质   总被引:24,自引:2,他引:22  
白玮  龙惟定 《暖通空调》1999,29(2):34-37
指出了影响室内人员生产率的各个因素,着重从室内空气品质、通风率、相对湿度、温度的角度分析了其中环境因素的作用,解决了室内环境因素的概念。认为改善室内环境品质可以提高生产率和健康水平,但亦可能有消极的作用。  相似文献   

3.
    
The indoor environment influences occupants’ health. From March 1, 2018, to February 28, 2019, we continuously monitored indoor temperature (T), relative humidity (RH), and CO2 concentration in bedrooms via an online system in 165 residences that covered all five climate zones of China. Meanwhile, we asked one specific occupant in each home to complete questionnaires about perceived air quality and sick building syndrome (SBS) symptoms at the end of each month. Higher CO2 concentration was significantly associated with a higher percentage of perceived stuffy odor and skin SBS symptoms. Higher relative humidity was associated with higher percentage of perceived moldy odor and humid air, while lower RH was associated with a higher percentage of perceived dry air. Occupants who lived in residences with high RH were less likely to have mucosal and skin SBS symptoms (adjusted odds ratio (AOR): 0.73–0.78). However, the benefit of high humidity for perceived dry air and skin dryness symptoms is weaker if there is a high CO2 concentration level.  相似文献   

4.
    
A cross-sectional study was conducted to assess the prevalence of sick building syndrome symptoms and its associated factors among bank employees. Data were collected through a self-administered MM040NA questionnaire among 234 employees of commercial banks in Pokhara Metropolitan, Nepal. The prevalence of general, ocular, respiratory, and dermal sick building syndrome symptoms was 47.6%, 11.9%, 11.9%, and 8.1%, respectively. The perceived indoor physical environment was a significant predictor of sick building syndrome symptoms. Besides this, age, disturbance from temperature and work pressure were significantly associated with general symptoms. Ocular symptoms were significantly associated with disturbance from noise at their workplaces and support from fellow workers. Respiratory symptoms were significantly associated with the time spent working with a photocopy machine. Proper maintenance of room temperature, noise control, good ventilation system, and promotion of supportive psychosocial working environment at banks is important to prevent and control the suffering of employees from SBS symptoms.  相似文献   

5.
在提高人类居住环境的舒适性方面,木造住宅、木质材料装修的居室以及木质家具对我们人类有独到的重要性.因此,木屋是理想的高尚住宅.由于我国土地和森林资源的匮乏,使得我们大面积建造木结构的房屋似乎不太可能,而木质环境的可居住性的诸多优点又促使我们思考如何在鳞次栉比的钢筋混凝土的建筑中去营造木质环境空间.本文对木材的特性和木质环境空间的可居住性进行了详细的论述,并以实际设计案例分析在钢筋混凝土建筑中营造木质环境空间的主要设计理念与手法.  相似文献   

6.
孟广田  杨纯华 《暖通空调》2001,31(5):52-54,51
介绍了一个芬兰地下空间病态建筑综合症调查实例,分析了地下空间的热环境特点和影响其空气品质的主要因素,提出了改善地下空间空气品质的方法。  相似文献   

7.
The paper addresses the question of what is a 'healthy'building, and whether the definition normally expressed in terms of occupant well-being has changed over a period of time. This definition is considered in relation to the relevant physical correlates, and suggested that they support the idea of the light, airy building. Air quality is then investigated to see how it can be, and perhaps more importantly how it is, incorporated into current solutions. Two design approaches are suggested from which a decision can be made as to use and profit from the shape of buildings; these are climatically rejecting and climatically interactive, and the use of either can result in solutions of differing orders of technical complexity. Finally it is suggested that some of these orders of complexity of solution are more difficult to operate healthily than others, and indications are given of possible ways ahead.  相似文献   

8.
室内空气品质及相关研究   总被引:38,自引:2,他引:38  
介绍室内空气品质的国内外有关研究成果,包括IAQ问题引起关注的缘由,IAQ的影响因素、评价方法及改善IAQ的相关措施。  相似文献   

9.
国外非工业建筑室内空气品质研究动态   总被引:37,自引:1,他引:37  
马仁民 《暖通空调》1999,29(2):38-41
以197年健康建筑和室内空气品质国际会议文献为基础,概略介绍了国际上的有关研究近况,涉及病态建筑综合症和室内空气污染问题以及减少污染的办法和手段,阐述了作者对我国室内空气品质问题的看法。  相似文献   

10.
The aim was to utilize data from a study of occupational indoor environments to analyze symptoms and physiological signs in relation to the home environment. A medical investigation was performed at the workplace among university staff (n = 173) from four university buildings in Bergen, in March 2004. Tear film break up time (BUT) was measured by two methods. Nasal patency was measured by acoustic rhinometry. Nasal lavage fluid analysis (NAL) included eosinophilic cationic protein (ECP); myeloperoxidase (MPO), lysozyme and albumin. Atopy was assessed by total serum IgE and specific IgE (Phadiatop). Totally 21%, 21%, 18%, 11%, and 27% had weekly ocular, nasal, facial dermal symptoms, headache and tiredness, respectively, 15% had a damp dwelling, and 20% had a cat or dog. Multiple linear or logistic regressions were applied, controlling for age gender, smoking, and environmental factors. Building dampness was associated with increased NAL-lysozyme (P = 0.02) and an increase of airway infections [odd ratio (OR) = 3.14, P = 0.04]. Pet keeping was associated with difficulties to concentrate (OR = 5.10, P = 0.001), heavy headedness (OR = 4.35, P = 0.004), four more days with tiredness per month (P = 0.04), and less airway infections (OR = 0.32; P = 0.02). In conclusion, pet keeping was associated with more central nervous system (CNS)-symptoms but less airway infections. Dampness in the dwelling may have inflammatory effects on the airway mucosa, possibly mediated via increased infection proneness. PRACTICAL IMPLICATIONS: The main health focus on pet keeping has been allergen exposure. Our study indicates that effects on airway infections and other types of symptoms should also be considered. The findings support the view that measures should be taken to reduce building dampness in dwellings.  相似文献   

11.
ABSTRACT

The prevalence of mechanical climatization in office buildings, alongside the dictate to conserve energy, has misguidedly promoted the construction of buildings with non-operable windows. Research shows that such buildings are detrimental to their occupants’ wellbeing and productivity, sometimes causing them to feel overcooled or overheated. This post-occupancy evaluation illustrates such problems through the case study of a courthouse building in a hot arid environment. A strong association is shown between occupant satisfaction, building ventilation and sense of wellbeing at work. A positive correlation was found between satisfaction with personal control, and overall satisfaction survey results show that workers express a willingness to compromise future salary rises in order to receive operable windows. Key lessons for architects are discussed.  相似文献   

12.
空调系统在病态建筑中的特征分析   总被引:15,自引:1,他引:15  
朱能  王侃红  田哲 《暖通空调》1999,29(2):11-15
提出了健康建筑和病态建筑的定义,分析了建筑设计、建筑物的运行管理、通风、尘菌过滤、管道维护等因素对室内空气品质以至对病态建筑形成的影响,讨论了空调系统在病态建筑中,包括室内环境参数、新风量、空调系统调节与管理等方面的特征表现。认为病态建筑在我国必然存在,强调应根据我国具体情况加强有关研究工作。  相似文献   

13.
Volatile organic compounds (VOCs) were sampled in buildings where people with non-specific building-related symptoms perceive health problems and in buildings where they do not. In total, nine persons and 34 buildings were included in the study. The obtained VOC data was evaluated using multivariate methods, to investigate possible systematic differences in air quality of 'problem' and 'non-problem' buildings. All individual compounds were included as variables in a multivariate partial least squares (PLS) data analysis. 'Problem' and 'non-problem' buildings separated into two distinct groups, showing that air samples of the two groups of building were chemically different. PRACTICAL IMPLICATIONS: The study showed that there was an identifiable systematic difference in the collected VOC data between buildings causing and not causing problems for people with non-specific building-related symptoms (also called sick building syndrome, SBS). This is an important indication that even such volatile organic compounds that can be sampled by commonly used adsorbents are of importance for the presence of such symptoms. By coordination of procedures for sampling and analysis of VOCs in buildings between laboratories, to get large datasets and more general models, the method can become a useful diagnostic measure in evaluating indoor air and to identify chemical compounds and sources that contribute to SBS problems.  相似文献   

14.
    
The aim of this study was to explore the association between the building-related occupants’ reported health symptoms and the indoor pollutant concentrations in a sample of 148 office rooms, within the framework of the European OFFICAIR research project. A large field campaign was performed in 37 office buildings among eight countries, which included (a) 5-day air sampling of volatile organic compounds (VOCs), aldehydes, ozone, and NO2 (b) collection of information from 1299 participants regarding their personal characteristics and health perception at workplace using online questionnaires. Stepwise and multilevel logistic regressions were applied to investigate associations between health symptoms and pollutant concentrations considering personal characteristics as confounders. Occupants of offices with higher pollutant concentrations were more likely to report health symptoms. Among the studied VOCs, xylenes were associated with general (such as headache and tiredness) and skin symptoms, ethylbenzene with eye irritation and respiratory symptoms, a-pinene with respiratory and heart symptoms, d-limonene with general symptoms, and styrene with skin symptoms. Among aldehydes, formaldehyde was associated with respiratory and general symptoms, acrolein with respiratory symptoms, propionaldehyde with respiratory, general, and heart symptoms, and hexanal with general SBS. Ozone was associated with almost all symptom groups.  相似文献   

15.
余志强 《山西建筑》2011,37(17):199-200
参照美国ASHRAE标准62—1999,对影响室内空气品质的因素进行了分析,如室内的污染源、受污染的室外空气、不足的新风量、气流组织的不当、空调系统运行管理维护的不当等等,对这些影响因素的深入分析是避免病态建筑、实现健康建筑的基础。  相似文献   

16.
    
A previous study showed that classical building-related symptoms (BRS) were related to indoor dust and microbial toxicity via boar sperm motility assay, a sensitive method for measuring mitochondrial toxicity. In this cross-sectional study, we analyzed whether teachers’ most common work-related non-literature-known BRS (nBRS) were also associated with dust or microbial toxicity. Teachers from 15 schools in Finland completed a questionnaire evaluating 20 nBRS including general, eye, respiratory, hearing, sleep, and mental symptoms. Boar sperm motility assay was used to measure the toxicity of extracts from wiped dust and microbial fallout samples collected from teachers’ classrooms. 231 teachers answered a questionnaire and their classroom toxicity data were recorded. A negative binomial mixed model showed that teachers’ work-related nBRS were 2.9-fold (95% CI: 1.2-7.3) higher in classrooms with highly toxic dust samples compared to classrooms with non-toxic dust samples (p = 0.024). The RR of work-related nBRS was 1.8 (95% CI: 1.1-2.9) for toxic microbial samples (p = 0.022). Teachers’ BRS appeared to be broader than reported in the literature, and the work-related nBRS were associated with toxic dusts and microbes in classrooms.  相似文献   

17.
    
Qin Yang  Juan Wang  Dan Norbäck 《Indoor air》2021,31(5):1402-1416
Risk factors at home for ocular, nasal, throat and dermal symptoms, headache, and fatigue were studied in a nationwide questionnaire survey in Sweden, the BETSI study in 2006. Totally, 5775 adults from a stratified random sample of multi-family buildings participated. Associations between home environment factors and weekly symptoms were analyzed by multi-level logistic regression. In total, 8.3% had ocular symptoms; 11.9% nasal symptoms; 7.1% throat symptoms; 11.9% dermal symptoms; 8.5% headache and 23.1% fatigue. Subjects in colder climate zones had more mucosal and throat symptoms but less fatigue and ocular symptoms. Rented apartments had poorer indoor environment than self-owned apartments. Those living in buildings constructed from 1961 to 1985 had most symptoms. Building dampness, mold and mold odor were risk factors, especially headache and ocular symptoms. Lack of mechanical ventilation system was another risk factor, especially for headache. Environmental tobacco smoke (ETS), electric radiators, and crowdedness were other risk factors. Oiled wooden floors, recent indoor painting, and new floor materials were negatively associated with symptoms. In conclusion, building dampness, mold, poor ventilation conditions, crowdedness, ETS, and emissions from electric radiators in apartments in Sweden can increase the risk of ocular, nasal, throat and dermal symptoms, headache, and fatigue.  相似文献   

18.
    
In a warm and humid climate, increasing the temperature set point offers considerable energy benefits with low first costs. Elevated air movement generated by a personally controlled fan can compensate for the negative effects caused by an increased temperature set point. Fifty‐six tropically acclimatized persons in common Singaporean office attire (0.7 clo) were exposed for 90 minutes to each of five conditions: 23, 26, and 29°C and in the latter two cases with and without occupant‐controlled air movement. Relative humidity was maintained at 60%. We tested thermal comfort, perceived air quality, sick building syndrome symptoms, and cognitive performance. We found that thermal comfort, perceived air quality, and sick building syndrome symptoms are equal or better at 26°C and 29°C than at the common set point of 23°C if a personally controlled fan is available for use. The best cognitive performance (as indicated by task speed) was obtained at 26°C; at 29°C, the availability of an occupant‐controlled fan partially mitigated the negative effect of the elevated temperature. The typical Singaporean indoor air temperature set point of 23°C yielded the lowest cognitive performance. An elevated set point in air‐conditioned buildings augmented with personally controlled fans might yield benefits for reduced energy use and improved indoor environmental quality in tropical climates.  相似文献   

19.
This paper reports a study of the gaseous emissions from Indian forest fires from 2005 to 2016 and their potential impact on radiative forcing. Initially, forest burned area is quantified using MODIS-MCD45A1 data. Results showed that annual burned area of the study period ranges from 8439 km2 to 25,442 km2 and the maximum forest area is burned during February, March, and April in any year. Gaseous emissions are estimated using emission factors, the mass of fuel available for combustion, combustion factor, and burned area. CO2, CO, and CH4 are the major emissions during forest fires with an annual average of 105 × 106 tonnes, 6 × 106 tonnes, and 3.25 × 105 tonnes, respectively. The average radiative forcing (RF) for CO2, CH4, and N2O is estimated as 1.8 Wm?2, 0.49 Wm?2, and 0.177 Wm?2, respectively. An important finding in the present study is the recurrence of forest fires during the pre-monsoon season.  相似文献   

20.
本文简要介绍了我国建筑材料燃烧性能分级方法的最新进展,包括新旧分级方法的不同和相关政策,以及新分级方法采用的试验方法和检测设备。  相似文献   

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