00000nam 2200000zi 4500 9.925213 CaOODSP 20241203113656 m o d f cr bn||||||||| 230719e200110##onc ob f000 0 eng d CaOODSP eng rda CaOODSP n-cn--- En4-550/2001E-PDF Hewings, John, author. Air quality indices : a review / a report prepared for Environment Canada by Pollution Probe ; author: John Hewings. [Toronto?] : Pollution Probe, October 2001. 1 online resource (63 pages) text txt rdacontent computer c rdamedia online resource cr rdacarrier Cover title. Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references. "This report provides background information that Pollution Probe hopes will assist in the development of a national Air Quality Index in Canada. It includes a historical review that explains how the index was devised and modified, and how it has been used in various parts of Canada"--Executive summary, page 7. Air quality management Canada. Air quality indexes Canada. Air quality Canada Measurement. Air Qualité Gestion Canada. Air Qualité Indices Canada. Air Qualité Canada Mesure. Canada. Environment Canada, issuing body. Pollution Probe, issuing body. PDF 264 KB https://publications.gc.ca/collections/collection_2024/eccc/en4/En4-550-2001-eng.pdf