نتایج جستجو برای: air quality standards

تعداد نتایج: 1019331  

2014

Nowadays harmonization of sanitary and hygienic standards of environmental quality with international standards is crucial part of integration of Russia into the international community. Harmonization of Russian and international ambient air quality standards may be realized by risk-based standards development. In this paper approaches to risk-based standards development and examples of these a...

Journal: :Environmental science and pollution research international 2010
Ian Colbeck Zaheer Ahmad Nasir Zulfiqar Ali

BACKGROUND AND PURPOSE Pakistan, during the last decade, has seen an extensive escalation in population growth, urbanization, and industrialization, together with a great increase in motorization and energy use. As a result, a substantial rise has taken place in the types and number of emission sources of various air pollutants. However, due to the lack of air quality management capabilities, t...

2007
Wallace E. Oates

Environmental policymaking typically takes place in the context of a system with several levelsof government. And this raises the important issue of the appropriate role of the various governments in the setting of environmental standards, the design of regulatory measures to attain the standards, and the monitoring and enforcement of these measures. Actualpractice reveals a rather strange and ...

2006
David J. Nowak Daniel E. Crane Jack C. Stevens

A modeling study using hourly meteorological and pollution concentration data from across the coterminous United States demonstrates that urban trees remove large amounts of air pollution that consequently improve urban air quality. Pollution removal (O3, PM10, NO2, SO2, CO) varied among cities with total annual air pollution removal by US urban trees estimated at 711,000 metric tons ($3.8 bill...

Journal: :Journal of the Air Pollution Control Association 1977

Journal: :Energies 2022

Buildings are expected to provide healthy and comfortable indoor environmental conditions for their users. Such have diverse dimensions, including thermal, visual, air quality, auditory, olfactory aspects. Indoor quality standards, guidelines, codes typically inform professionals in the building design operation phase view of procedural, contractual, legal boundary conditions. Given this critic...

Journal: :Journal of the Air Pollution Control Association 1961

Journal: :Australian and New Zealand Journal of Public Health 2020

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