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: Ammonia
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Guidelines for use of chlorine, sulphur dioxide and ammonia in water and sewage treatment works in the Province of Ontario [1987]
Ontario. Environmental Approvals and Land Use Planning Branch
https://archive.org/details/guidelinesforuse00ontauoft
Ammonia recovery feasibility study [1991]
Ontario. Waste Management Branch
https://archive.org/details/ammoniarecoveryf00ontauoft
Analysis of collocated sampling results for volatile organic compounds : report [1993]
Ontario. Waste Management Branch
https://archive.org/details/analysisofcolloc00steeuoft
Analysis of the response of healthy and declining sugar maple trees to fertilization [1992]
Ontario. Waste Management Branch
https://archive.org/details/analysisofrespon00bealuoft
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