00000nam 2200000za 4500 9.861363 CaOODSP 20221107160733 cr ||||||||||| 180830s1974 oncbd|| o f000 0 eng d CaOODSP eng eng fre n-cn--- EC22-3/1974-18E-PDF Paproski, Dennis M. Air quality in Canadian urban areas [electronic resource] / by Dennis M. Paproski and Julian R. Walker. Ottawa : Economic Council of Canada, 1974. 139 p. : charts, maps. Discussion paper ; no. 18 "December 1974." Digitized edition from print. Includes bibliographic references. "This discussion paper presents a summary of the research involved in the determination of a first-approximation urban air quality indicator, as presented in the Eleventh Annual Review of the Economic Council of Canada. The proposed indicator and the associated discussion of the sources and effects of air pollution presented in this paper are intendedto provide some insight into the factors at work within this area of concern"--Abstract. Includes abstract in French. gccst Air quality gccst Urban environment Walker, Julian R. (Julian Richard), 1948- Economic Council of Canada. Discussion paper (Economic Council of Canada) no. 18 (CaOODSP)9.855540 PDF 15.03 MB https://publications.gc.ca/collections/collection_2018/ecc/EC22-3-1974-18-eng.pdf