00000nam##2200000za#4500 9.646902 CaOODSP 20200330130000 ta 150407|1999||||xxc||||| f|0| 0 eng|d 0-662-26715-X CaOODSP eng n-cn--- H46-2/98-220-1E Canada. Health Canada. Environmental Health Directorate. National ambient air quality objectives for particulate matter : part I: science assessment document / Prepared by the CEPA/FPAC Working Group on Air Quality Objectives and Guidelines. Ottawa - Ontario : Health Canada. 1999. 300p. in various pagings. : graphs, tables ; 28 cm. "Included in this document is a description of PM (particulate matter): physical and chemical characteristics, monitoring methods, sources and behaviour in the environment, background and ambient concentrations, exposure of Canadians, and an evaluation of the available toxicological information and data. This is followed by the risk characterization for human and environmental receptors and the development of Reference Levels based on the scientific information."--Introduction. Included in this document is a description of PM (particulate matter): physical and chemical characteristics, monitoring methods, sources and behaviour in the environment, background and ambient concentrations, exposure of Canadians, and an evaluation of the available toxicological information and data. This is followed by the risk characterization for human and environmental receptors and the development of Reference Levels based on the scientific information.--Introduction Spiral binding 00-41 2000-10-13 Air quality gcpds Air pollution gcpds Health hazards gcpds National ambient air quality objectives for particulate matter. Part 1, Science assessment document : (CaOODSP)9.695398