Laboratory studies of potential mechanisms of renoxification of tropospheric nitric acid.

@article{RiveraFigueroa2003LaboratorySO,
  title={Laboratory studies of potential mechanisms of renoxification of tropospheric nitric acid.},
  author={A M Rivera-Figueroa and Anne Louise Sumner and Barbara J Finlayson-Pitts},
  journal={Environmental science & technology},
  year={2003},
  volume={37 3},
  pages={548-54}
}
Laboratory studies of the heterogeneous reactions between HNO3 in thin water films on silica surfaces and gaseous NO, CO, CH4, and SO2, proposed as potential "renoxification" mechanisms in the atmosphere, are reported. Transmission FTIR was used to monitor reactants and products on the silica surface and in the gas phase as a function of time. No reaction of CO, CH4, or SO2 was observed; upper limits to the reaction probabilities (gamma(rxn)) are < or = 10(-10) for CO and SO2 and < or = 10(-12… CONTINUE READING

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