economic impacts of air emission standards primary copper smelting draft report prepared for linda chappell us environmental protection agency office quality planning and oaqps innovative strategies economics group md 15 research triangle park nc 27711 by institute center 27709 epa contract number 68 d4 0099 rti project 7018 56 november 1997 industry profile katherine b heller jean l domanico this contains portions the impact analysis that are related to 1 section 2 supply side is part production process starts with mining ore having content only percent ends commercial grade 99 pure neshap covers
