Environmental Engineering Reference
In-Depth Information
4. Questions and Answers
James Kelly: How confident are you in the uptake coefficient used for HNO 3 on
dust?
Answer: The uptake coefficients are highly uncertain as they depend on the
atmospheric conditions and the material itself. In this work we have chosen a
value from the work of Tang et al. (2004) and Zhang and Carmichael (1999)
and currently we have implemented the relevant value proposed by IUPAC for
mineral dust. Performing sensitivity tests with different uptake coefficients is a
way to assess the model response to such uncertain values for the uptake
coefficients.
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