نتایج جستجو برای: environment pollution
تعداد نتایج: 576630 فیلتر نتایج به سال:
The indoor air quality is much more matter of concern as relative to ambient or outdoor air quality, especially in the context of human health. However, very few studies have been reported for remediation of indoor ozone by plant species. The main objective of this study is to evaluate ozone deposition velocities and ozone removal effectiveness of three indoor ornamental plant species (Dra...
Variation of hydrochemical conditions, with special reference to adequacy of waters as fish habitats, was traced based on selected hydrochemical parameters obtained during the studies conducted from February 2013 till February 2014 year. The results were compared with earlier studies. The sources of organic pollution were identified, and the effect of biogenic substances on the biomass, as well...
the centralization of human activities is associated with different pollutants which enter into environment easily and cause the urban environment more vulnerable. regarding the importance of air pollution issue for tehran metropolis, many plans and regulations have been developed. however, most of them failed to decline the pollution. the purpose of this study was to pathologically analyze air...
Nature inspired solutions enable biological systems to adapt and accomplish their tasks in very noisy and uncertain environments. Taking inspiration from nature, a novel bacteria controller capable of finding the source of pollution in an underwater medium turbulent environment is presented in this paper. Experiments prove that the controller is capable of performing pollution source exploratio...
considering rapid growth and migration, higher accumulation of communities along with the high number of shopping trips in mega cities such as tehran brings environmental consequences like excessive amounts of energy use, air pollution and massive urban congestions in all urban trips ending to shopping areas. the present study has been performed in tehran, capital of iran in 2009-2010. with the...
introduction discussion of sustainability and sustainable development, regardless of towns and cities would be meaningless cities as the main factor causing instability in the world are, in fact, the concept of urban sustainability and global are stability. environmental crises and urban issues such as air pollution, water, soil and water resources and agricultural land use renewable, global wa...
In addition to property damage and loss of lives, environment pollution, such as water pollution and air pollution caused by accidents in chemical industrial parks (CIPs) is a significant issue in China. An emergency response system (ERS) was therefore planned to properly and proactively cope with safety incidents including fire and explosions occurring in the CIPs in this study. Using a scenar...
liberalization of international markets affects level of pollution in developing countries more than in developed countries. therefore the impact of trade liberalization on environmental pollution is a challenge for policy makers. in this paper auto regressive distributed lags (ardl) and error correction model (ecm) methods are employed for a study of the relationship between trade liberalizati...
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