The basic concept for an Air Quality Management Strategy (AQMS) contains the following main components:

	Air Quality Assessment
	Environmental Damage Assessment
	Abatement Options Assessment*
	Cost Benefit Analysis or Cost Effective-ness Analysis
	Abatement Measures
	Optimum Control Strategy

The Air Quality Assessment, Environmental Damage Assessment and Abatement Options Assessment provide input to the Cost Benefit or Cost Effectiveness Analysis, which is also based on established Air Quality Objectives (i.e. guidelines, standards) and Economic Objectives (i.e. reduction of damage costs). The final result of this analysis is Optimum Control Strategy. The modelling concept of  an Air Quality Management Strategy system NILU has performed several AQMS studies. One major effort was the World Bank supported investigation for Djakarta, Bombay, Manila and Kathmandu. The air quality management programme of this kind requires continuing activities on the urban scale in the following fields:

Inventorying of air pollution activities and emissions

Monitoring of air pollution and dispersion parameters

Calculation of air pollution concentrations, by dispersion models

Inventorying of population, materials and urban development

Calculation of the effect of abatement/control measures

Establishing/improving air pollution regulations

The software system ENSIS/AirQUIS has been designed to support the necessary data and modelling needed as a basis for performing a modern AQMS.