Modeling may be necessary to estimate the changes in ambient air quality both local and at a distance caused by a particular set of emissions. Modeling can be appropriate for new plants and for modifications to existing plants. This chapter provides guidance on some models that may be useful in the context of typical World Bank Group projects.

The World Bank Group, in collaboration with United Nations Environment Programme, United Nations Industrial Development Organization

	Airshed models [.pdf, 53Kb]
	From the Pollution Prevention and Abatement Handbook, 1998, 9pp.