Environmental Benefits Mapping and Analysis Program (BenMAP)

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BenMAP is a Windows-based program that uses Geographic Information Systems (GIS) to estimate the health impacts and economic benefits of changes in air quality at the city and regional scale.

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This tool is included in the Development Impacts Assessment (DIA) Toolkit from the LEDS Global Partnership.


BenMAP is primarily intended as a tool for estimating the health impacts, and associated economic values, associated with changes in ambient air pollution. It accomplishes this by running health impact functions, which relate a change in the concentration of a pollutant with a change in the incidence of a health endpoint.

When to Use This Tool

This tool is most useful for development impacts assessments focused on:

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Learn more about the topics for assessing the impacts of low-emission development strategies (LEDS).

Key Outputs

Quantitative: Health incidents (mortality, non-fatal heart attacks, hospital admissions, chronic bronchitis, acute respiratory symptoms, asthma attacks, asthma emergency room visits, work loss days, worker productivity, and school absence rates) and related economic costs. The program also generates maps and charts displaying the results.

How to Use This Tool

Training Available
User Manual provided

Level of Expertise

Key Inputs

Inputs to health impact functions typically include:

  • the change in ambient air pollution level
  • health effect estimate
  • the baseline incidence rate of the health endpoint
  • the exposed population.

Case Studies

Examples of how Environmental Benefits Mapping and Analysis Program (BenMAP) has helped people assessing the impacts of low-emission development strategies in countries and regions:

U.S. and international case studies are available at http://www.epa.gov/air/benmap/docs.html.