Hi everyone, I want to simulate the hydrogen sulfide caused by bioaerosols from sea. Is there any support in CMAQ for that, I cannot find a mechanism containing it.
CMAQ currently does not treat hydrogen sulfide, though in principle any species can be added to the model if its emissions and any associated chemistry is known and specified. However, some familiarity with the CMAQ code structure would be required to implement this. Is the H2S from bioaerosols from sea that you are considering formed chemically in the atmosphere or do you have estimates of the emission source strength?
As an example you could examine how DMS emissions from oceans and subsequent chemistry is implemented in the CMAQ system as well as the folowing:
Zhao et al., Impact of dimethylsulfide chemistry on air quality over the Northern Hemisphere. Atmos. Environ. , 2021, 244, 117961. Redirecting
Sarwar et al., Examining the Impact of Dimethyl Sulfide Emissions on Atmospheric Sulfate over the Continental U.S., Atmosphere, 2023, 14 (4), 660; Examining the Impact of Dimethyl Sulfide Emissions on Atmospheric Sulfate over the Continental U.S.
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