Environment air quality

It has been proposed that a set of scheduled works may be assigned to local authorities. This class of works has been discussed in documents published by the Department of the Environment Air Quality Division and legislation came into force on 1 April 1991. It is proposed that these schedule (B) works will be licensed in much the same way as the existing scheduled works and that prior consent will be needed before operations of this type commence. This will give local authorities a much stronger hand in pollution abatement, and they will be able to avoid the establishment of premises in unsuitable areas or without adequate pollution-abatement equipment. At present, local authorities rely on planning conditions or nuisance provisions. 

Environ- Air quality Urban population weighted NO2 concentration. Urban... 

O.C.G. and Hoekstra E.S. (eds) Health implications of fungi in indoor environments. Air Quality monographs, Vol 2. 

National Ambient Air Quality Standards. Under the Clean Air Act, six criterion pollutants, ie, pollutants of special concern, have been estabhshed by the EPA sulfur oxides (SO ), particulates, carbon monoxide (CO), nitrogen oxides (NO ), o2one (photochemical oxidants), and lead. National Ambient Air QuaUty Standards (NAAQS) were developed by EPA based on threshold levels of air pollution below which no adverse effects could be experienced on human health or the environment. 

In order to build new facilities or expand existing ones without harming the environment, it is desirable to assess the air pollution impact of a facility prior to its construction, rather than construct and monitor to determine the impact and whether it is necessary to retrofit additional controls. Potential air pollution impact is usually estimated through the use of air quality simulation models. A wide variety of models is available. They are usually distinguished by type of source, pollutant, transformations and removal, distance of transport, and averaging time. No attempt will be made here to list aU the models in existence at the time of this writing. 

Demerjian, K. L., and Schere, K. L., Application of a photochemical box model for O3 air quality in Houston, TX, in "Proceedings of Ozone/Oxidants Interactions with the Total Environment II." Air Pollution Control Association, Pittsburgh, 1979, pp. 329-352. 

Nazaroff, W. W., and Teichmann, K., Indoor radon. Environ. Sci. Technol. 24, 774-782 (1990). U.S. Environmental Protection Agency and U.S. Consumer Product Safety Commission, "The Inside Story A Guide to Indoor Air Quality." EPA/400/1-88/004, September 1988. 

Chang, T. Y., Alternative transportation fuels and air quality. Environ. Sci. Technol. 25, 1190 (1991). 

Regulatory and advisory bodies publish methods for ambient air analysis sueh as those issued by the British Standards Institute and the US Environment Proteetion Ageney (Tables 10.24 and 10.25, respeetively). Methods for assessment of workplace air are published by the Health and Safety Exeeutive. Some of these are generie methods (Table 10.26) whilst others are eompound speeifie (Table 10.27). Examples of other offieial methods for monitoring workplaee air quality are those published by the British Standards Institute (Table 10.28), and the US National Institute of Oeeupational Safety and Health (Table 10.29). Table 10.30 provides additional guidanee on analytieal teehniques for a seleetion of substanees. 

Created the Environment Agency (EAJ and the SEA for Scotland. Contains detailed provisions for dealing with a range of environmental issues including air quality contaminated land reinforcing the polluter pays principle water quality, with the EA empowered to require action to prevent water pollution and to require polluters to clean up after any pollution episode. 

This chapter provides orientation and an introduction to the subject of air quality. As a part of this introduction, we begin exploring the options for ensuring high quality air in the environment. The focus of this book is on industrial air pollution problems, and hence, the term environment refers to the universal ecosystem that humans live and interact in, as well as the workplace. 

In the first environment, we are concerned with the potential health risks that chemicals pose to the public, as well as possible impacts on the ecology. In the latter case, we are concerned with indoor air quality and its possible adverse impacts on the health and safety of the workforce. In both cases the health dangers may be either acute, or long-term chronic health risks. We will first discuss general concepts of air pollution and table our discussions on... 

The Clean Air Act is the comprehensive Federal law that regulates air en stationary, and mobile sources. This law authorizes the U.S. Environmental Protection Agency (EPA) to establish National Ambient Air Quality Standards (NAAQS) to protect public health and the environment. The goal of the Act was to set and achieve NAAQS in every state by 1975. This ng of maximum pollutant standards was coupled with directing the states to develop state... 

In all ventilation, the condition of the indoor environment, called indoor air quality (lAQ), and the exposures for the occupants are important. In industrial facilities, the contaminant emission rates may be 10-100 times higher than in nonindustrial facilities, but for many contaminants the lAQ levels may... 

Air conditioning systems control air quality and thermal environment for both human occupancy and processes. 

Berglund, L. G. and Cain, W. S. (1989). Perceived air quality and the thermal environment. In The Human Equation Health and Comfort. Proceedings of ASHRAE/SOEH Conference lAQ 89. ASHRAE, Atlanta, pp. 93-99. 

The main purpose for the heating and air conditioning of work spaces is to provide an environment that is acceptable and does not impair the health and performance of the occupants. During production processes and in the external environment it may be necessary to work in unacceptable conditions for a limited time period. However, it must be ensured that these conditions do not impair the health of the employees. Light, noise, air quality, and the thermal environment are all factors that influence the acceptability of conditions for and performance of the occupants. This section will only deal with the thermal environment. Several standards dealing with methods for the evaluation of the thermal environment have been published by international standard organizations such as ISO and CEN. 

Requirements for indoor environment quality must be discussed and decided before the air conditioning design is performed. Criteria for acceptable indoor air quality and thermal comfort must be set. 

The company must decide the air quality target values for breathing zones in the work environment after discussion with industrial hygienists and ventilation engineers. 

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