RT null T1 Air Quality Management and Assessment Capabilities in 20 Major Cities A1 United Nations Environment Programme, A1 Monitoring and Assessment Research Centre, A1 World Health Organization, K1 air quality K1 urban environment K1 air pollution K1 emission data K1 atmospheric emission SN 0-90591 8-41-X YR 1996 FD 1996 LK https://wedocs.unep.org/handle/20.500.11822/22511 UL https://wedocs.unep.org/handle/20.500.11822/22511 NO This report assesses the components required for effective air quality management: the information inputs which are required for decision-making; how these inputs are used and how to measure their comprehensiveness, effectiveness and appropriateness. It is, therefore, an important precursor to developing and improving existing management capabilities. DS UN Environment Document Repository RD Sep 17, 2026