Photochemical mineralization of dissolved organic nitrogen to ammonia in prairie lakes

@article{Jeff2012PhotochemicalMO,
  title={Photochemical mineralization of dissolved organic nitrogen to ammonia in prairie lakes},
  author={S Jeff and Kristine Hunter and David M. Vandergucht and Jeff Hudson},
  journal={Hydrobiologia},
  year={2012},
  volume={693},
  pages={71-80}
}
We examined the rate of photoammonification in 16 lakes from Saskatchewan, Canada. Lakes were selected to encompass a broad range in dissolved organic nitrogen (DON) (269–1,435 μg l−1). Lake filtrate (<0.2 μm) was exposed to artificial solar radiation for 4 h. Rates of photoammonification were significant in 7 of the 16 study lakes. Ammonia (NH3) concentrations increased 0.84–2.85 μg l−1 over control values. This is a 4–92% increase in NH3 concentration and a conversion of 0.18–0.3% of the DON… 

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