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Ministry / Agency: Ontario. Ministry of the Environment. Air Management Branch

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Sulphur dioxide (1972) - heavy metal (1971) levels and vegetation effects in the Wawa area [Sulphur dioxide (1972) - heavy metal (1971) levels and vegetative effects in the Wawa area] [1973]
Ontario. Ministry of the Environment. Air Management Branch
https://archive.org/details/SULPHURDIOXIDE1900MCGO08286.ome
Sulphur dioxide (1972) - heavy metal (1971) levels and vegetative effects in the Sudbury area [1973]
Ontario. Ministry of the Environment. Air Management Branch
https://archive.org/details/SULPHURDIOXIDE1900MCGO09411.ome
Sulphur dioxide levels and environmental studies in the Wawa area during 1971 [1972]
Ontario. Ministry of the Environment. Air Management Branch
https://archive.org/details/SULPHURDIOXIDELE00MCGO08125.ome
Hamilton noise survey, summer 1972 [1988]
Ontario. Ministry of the Environment. Air Management Branch
https://archive.org/details/HAMILTONNOISESUR00SHAH09577.ome
Interim report on lead in the environment in the vicinity of secondary lead smelters in Metropolitcan Toronto /compiled by the Working Committee on Lead Pollution: Dr. G. J. Stopps , Mr. C. E. Duncan , Dr. S. N. Linzon , Mr. L. Shenfeld [1973]
Ontario. Ministry of the Environment. Air Management Branch
https://collections.ola.org/mon/25005/310044.pdf
Source testing code [1973]
Ontario. Ministry of the Environment. Air Management Branch
https://collections.ola.org/mon/25002/3371.pdf