00000nam##2200000za#4500 9.687016 CaOODSP 20241203113636 cr ||||||||||| 150407|2004||||xxc|||||o f|0| 0 eng|d 0-662-37167-4 CaOODSP eng n-cn--- En84-3/2004E-PDF Canada. Environment Canada. Characterization of the Georgia Basin/Puget Sound airshed / [electronic resource] prepared by Bruce Thomson, Pacific and Yukon Region, Environment Canada ; co-published by the United States Environmental Protection Agency. Ottawa - Ontario : Environment Canada [2004]. 140p. coloured figs., references, tables "The study focused on three air pollution issues: ground-level ozone (ozone), fine particulate matter (PM) and visibility. These issues are not only matters of public concern but are also significant factors in the development of international air quality standards and strategies."--p.13, Executive summary. 13-21-Supp 2013-09-16 Caractérisation du bassin atmosphérique du bassin de Géorgia/Puget Sound / (CaOODSP)9.631479 http://publications.gc.ca PDF 4096 KB https://publications.gc.ca/collections/collection_2013/ec/En84-3-2004-eng.pdf