نتایج جستجو برای: air quality violation
تعداد نتایج: 955940 فیلتر نتایج به سال:
Background and Objectives: There is a direct relationship between the air quality and human health. In this research, the air quality of Rafsanjan city was monitored regarding the concentration of some pollutants within a year. Materials and Methods: In this descriptive study, portable particle counter and air analyzer were used. Measurement of air pollutant parameters was done every two week...
بررسی ارتباط بین غلظت ذرات معلق در هوای داخل بیمارستان کودکان تهران و هوای آزاد اطراف آن در سال 1386
Background and Objectives: In recent years exposure to fine airborne particles has been identified as an important factor affecting human health. Epidemiological studies have showed that the aerosol laden air can be an agent for microorganisms’ dispersion. Ignoring internal sources, ambient air quality significantly affects indoor air quality. Since people spend most of their times in the indoo...
Sources of PM10 within urban areas of the UK include road traffic, industry and power production. Results from numerous investigations of human respiratory and other diseases show consistent statistical associations between human exposure to outdoor levels of PM10 and adverse health impacts. Health effects range from alveolar inflammation in the lungs and respiratory-tract infection (specifical...
The issues of indoor air quality are complex and can be directly influenced by a number of system and building parameters. There are no universal solutions for every problem since there are numerous potential contaminant sources. They may originate from indoors and have a direct impact on indoor environmental quality, or they may originate from outdoors and be transferred by a mechanical or nat...
In most large cities of the developing world, urban air pollution has worsened, which has been detrimental to the health of their populations. At the same time, it is difficult for lay people to sense the level of air quality with bare human perception as air pollutants are mostly invisible and odorless. We believe that computing technologies can help increase awareness of urban air quality. To...
Complaints in modern buildings have been attributed to inadequate ventilation for the last 20 years. Few data exist to support this claim. In fact, few studies have actually looked at ventilation and complaints at the same time. These missing studies indicate a failure of three groups of professionals, physicians and health scientists, architects and engineers, and scientists knowledgeable in e...
Background and Aim: One of the notorious air pllutants on which air quality is determined is carbon monoxide (CO). The aim of the present study was to measure the concentration of CO outdoor and indoor urban environments and compare it with air quality standards within buildings and open spaces. Materials and Methods: This research was a descriptive-analytical study of CO estimation in ou...
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