TY - GEN AU - United Nations Environment Programme PY - 1992 UR - https://wedocs.unep.org/handle/20.500.11822/30223 LA - English KW - environmental monitoring KW - air quality KW - air quality management KW - particulate matter TI - UNEP-HEM / WHO / GEMS/AIR Workshops on Sampler Methodologies in Air Quality Monitoring: Availability, Applicability, and QA/QC Implications - I. Gaseous Species, II. Suspended Particulate Matter - UNEP/GEMS Report Series No.27 M3 - Meeting resource ER -