00000nam 2200000zi 4500 9.868961 CaOODSP 20241203113646 m o d f cr ||||||||||| 190227e197103##oncd |o f|0| 0 eng d CaOODSP eng rda CaOODSP n-cn--- En42-15/71-6E-PDF Dubois, L., author. The measurement of sulphate in air / by L. Dubois [and three others]. Ottawa : Air Pollution Control Directorate, Department of the Environment, March 1971. 1 online resource (19 pages) : charts. text txt rdacontent computer c rdamedia online resource cr rdacarrier APCD ; 71-6 Digitized edition from print [produced by Environment and Climate Change Canada]. Includes bibliographical references. "Several workers in the literature have stated that the concentration of sulphate (SO4) found in air is influenced by the sampling time. According to Corn and Demaio, the amount of sulphate found expressed in micrograms per cubic metre of air is less the longer the sampling time (3). This air sampling "anomaly" with respect to sulphate concentrations was confirmed by Roesler et al (4). Accepting this anomaly as fact, Lee and Wagman carried out experiments to explain it"--Abstract. Sulphates gccst Air pollution Canada. Environment Canada. Canada. Air Pollution Control Directorate. Report APCD ; 71-6 (CaOODSP)9.868593 PDF 496 KB https://publications.gc.ca/collections/collection_2019/eccc/En42-15-71-6-eng.pdf