airshed Articles
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Pollution abatement for improving air quality of Tangshan municipality, China: a perspective of urban-airshed carrying-capacity concept
This paper presents a perspective of Urban-Airshed Carrying-Capacity (UACC) concept for air pollution abatement in Tangshan Municipality, China. A 3D Multi-Box Air Quality Prediction (3DMBAQP) model was developed for predicting daily average SO2, TSP and PM10 concentrations in each sub-box of different municipal Function Zones (FZs). A 6-step procedure was designed to determine the UACC levels ...
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Development and regional application of a photochemical oxidant dispersion/reactivity model
In this paper we use the urban airshed model IV, simultaneously including the dispersion and the tropospheric chemistry as described in version IV of the carbon bond (CB-IV). The modelling area covers northern France and a part of Belgium, with a total surface area of 15 000 km2. The wind field is calculated using the Meteo France ALADIN code and temperature vertical profiles from radiosoundings. ...
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Three-dimensional modelling of photochemical air pollution in Switzerland and comparison with a multi-parcel Lagrangian model
The photochemical smog situation in Switzerland on 29 July, 1993 was simulated using the 3-D grid model UAM (Urban Airshed Model) and the results were compared with those of a multi-parcel Lagrangian model. Sensitivity analyses concerning initial conditions, emissions, deposition, biogenic volatile organic compounds (VOC), and emission reductions were carried out. Results were compared with field ...
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Eutrophication
Eutrophication of lakes and reservoirs is enrichment with plant nutrients, mainly phosphorus and nitrogen, which enter as solutes and bound to organic and inorganic particles. Enhanced growth and increased abundance of aquatic plants often results in reductions in water quality. Augmented nutrient inputs to inland waters usually result from modifications of watersheds, such as deforestation, ...
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Application of The Air Pollution Model (TAPM) to the urban airshed of Bangkok, Thailand
Bangkok has been faced with air pollution problems as a result of increasing traffic emissions. The Air Pollution Model (TAPM) was employed to simulate carbon monoxide (CO) concentrations based on an emissions inventory data. The hourly CO concentrations from a year-long simulation have been evaluated against observations from six monitoring sites. The simulated concentrations were evaluated ...
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A Critical Evaluation of the South African Air Quality Offsets Guideline
There is wide recognition in South Africa to the link between the quality of life and quality of the air we breathe. The Department of Environmental Affairs (DEA) attempts to improve air quality through two key regulatory tools; emission limits, which regulate the maximum concentration of certain pollutants permissible within certain, ‘listed’ industrial stacks or vents, and ambient ...
By WKC Group
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Chemical characterization and preliminary source contribution of fine particulate matter in the Mexicali/Imperial valley border area
ABSTRACTThe airshed shared by the Valley of Mexicali in Mexico and Imperial Valley in the United States frequently experiences high levels of particulate matter (PM) less than 10 m (PM10). However, very little information exists on the concentration and composition of fine PM (PM 2.5 m, or PM2.5) in the region, particularly on the Mexican side of the border. This paper presents the results of ...
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Learning from Experience: An Analysis of Clean Air Policies In The United States Since 1970
This paper could have been called, “What Has Worked Well and What Ideas Are Worth Copying.” It summarizes some of the unique elements of the U.S. clean air program, provides an evaluation of their effectiveness, and suggests some ideas for improving the program. If there is any lesson to be learned from the U.S. experience, it is that one must act to clean up the atmosphere. Studying air ...
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Monitoring - Pollution Prevention Guidelines
Introduction Pollution Prevention Guidelines to provide technical advice and guidance to staff and consultants involved in pollution-related projects. The guidelines represent state-of-the-art thinking on how to reduce pollution emissions from the production process. In many cases, the guidelines provide numerical targets for reducing pollution, as well as maximum emissions ...
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Field demonstration of a near-real-time multi-metals ambient fence line monitor case study
National emissions standards for hazardous air pollutants (HAPs) are required under Section 112 of the Clean Air Act to limit the release of specified HAPs. Permitting, monitoring and enforcement of these emission limits are an integral part of managing air quality to protect human health and the environment. However, this is difficult and highly uncertain in the case of fugitive emissions ...
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Thermal Power - Rehabilitation of Existing Plants Industry - Pollution Prevention Guidelines
Introduction Pollution Prevention Guidelines to provide technical advice and guidance to staff and consultants involved in pollution-related projects. The guidelines represent state-of-the-art thinking on how to reduce pollution emissions from the production process. In many cases, the guidelines provide numerical targets for reducing pollution, as well as maximum emissions ...
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Analytical Support for Cost-Effective Pollution Control
' Analytical tools have been developed by the World Bank Group to estimate rapidly the extent and impacts of pollution in a given situation and to support decisions on pollution management. These tools help decision makers to overcome the frequent lack of data on emissions from different sources, their impact on ambient quality, and mitigation alternatives.' Decision Support System for ...
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