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Formation of N-Nitrosodimethylamine During Treatment of Municipal Waste Water by Simulated Land Application¹

ABSTRACT

N-Nitrosodimethylamine was formed at a linear rate in Lake George sand and Arkport fine sandy loam amended with sewage, dimethylamine, and nitrite. The rates of formation were similar in the two soils. The amount that accumulated in the waste-water-amended Lake George sand under non-percolating conditions was a linear function of the amount of precursors added, and 0.8% of the dimethylamine and 1.3% of the nitrite was recovered as the carcinogen. The extent of conversion was smaller when sewage containing the precursors was percolated through this soil. The extent of nitrosation was influenced by the moisture level of the soil.

Key Words: carcinogen • land disposal • nitrosamine

¹ Contribution of the Dep. of Agron., Cornell Univ., Ithaca, NY 14853. Supported by a grant from the U.S. Army Cold Regions Res. and Eng. Lab.

² Research Assistant and Professor of Soil Science, Cornell Univ., and Research Chemist, U.S. Army Cold Regions Res. and Eng. Lab., Hanover, NH 03755, respectively.

Received for publication August 13, 1980.