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# | Poticy RESEARCH WORKING Paper 1431 Summary findings

The World Bank's technical assistance work with new environmental protection institutions stresses costeffective regulation, with market-based pollution contro} instruments implemented wherever feasible. But few environmental protection institutions can do the benefitcost analysis needed because they lack data on industrial emissions and abateme+t costs. For the time being, they must use appropriate estimates.

The industrial pollution projection system (IPPS) is being develaped as a comprehensive response to this need for estimates. The estimation of IPPS parameters is providing a much clearer, more detailed view of the sources of industrial pollution. The IPPS has been developed to exploit the fact that industrial pollution is heavily affected by the scale of industria! activity, by its sectoral composition, and by the type of process technology used in production. Most developing countries have little or no data on industrial pollution, but many of them have relatively detailed industry-survey information on employment, value added, or output. The IPPS is designed to convert this information to a profile of associated pollutant output for countries, regions, urban areas, or proposed new projects. It operates through sectoral estimates of pollution intensity, or pollution per unit of activity. The IPP§ is being developed in two phases. The first prototype has been estimated from a massive U.S. data base developed by the Bank’s Policy Research Department, Environment, Infrastructure, and Agriculture Division, in collaboration with the Center for Economic Studies of the U.S. Census Bureau and the U.S. Environmental Protection Agency. This database was created by merging manufacturing census data with Environment Protection Agency data on air, water, and solid waste emissions. It draws on environmental, economic, and geographic information from about 200,000 U.S. factories. The IPPS covers about 1,500 product categories, all operating technologies, and hundreds of pollutants, It can project air, water, or solid waste emissions, and it incorporates a range of risk factors for human toxins and ecotoxic effects. The more ambitious second phase of IPPS development will take into account cross-country —.d cross-regional variations in relative prices, economic and sectoral policies, and strictness of regulation.

This paper — a product of the Environment, Infrastructure, and Agriculmre Division, Policy Research Department — is part of a larger effort in the department to study the determinants of industrial pollution as an aid to cost-effective regulation in developing countries. Copies of the paper are available free from the Worl 1 Bank, 1818 H Street NW, Washington, DC 20433. Please contact Angela Williams, room N10-015, extension 37176 (77 pages). March 1995.

development issues. An objective of the series is to get the findings out quickly, even if the presentations are less than fully polished. The papers carry the names of the authors and should be used and cited accordingly. The findings, interpretations,and conclusions are the authors’ own and should not be attributedto the World Bank, its<sup>Executive</sup> Boardof Directors, or any of its member countries. ees Produced by the Policy Research Dissemination Center