RT Report T1 Environmental aspects of Selected Non-ferrous Metals (Cu, Ni, Pb, Zn, Au) Ore Mining: A Technical Guide - Technical Report Series No. 5 A1 United Nations Environment Programme, K1 non-ferrous metal K1 ore K1 pollutant K1 air pollution K1 water pollution K1 waste K1 mine K1 mine closure K1 occupational health K1 gold mine K1 environmental protection K1 environmental aspect K1 environmental monitoring K1 environmental management SN 92 807 1295 X YR 1991 FD 1991 LK https://wedocs.unep.org/handle/20.500.11822/29230 UL https://wedocs.unep.org/handle/20.500.11822/29230 NO This is the fifth publication in a new Technical Series that regroups the Guidelines, Overviews, Technical Reviews, and Workshop Proceedings previously published by UNEP IE/PAC. As before, the Technical Series aims to meet the needs of a wide range of government officials, industry managers and environment protection associations, by providing information on the issues and methods of environmental management relevant to various industrial sectors. DS UN Environment Document Repository RD Sep 18, 2026