I am using CMAQ 5.3.2 and the concentration of PM10 is unusually high. Specifically, concentration of ACORS, ACLK, and ASO4K is showing high values. Do I need to reduce the emission rate of PMC？
The picture shows the hourly concentration of PM10.
You have not provided enough information as to the case you are modeling. While those PM10 concentrations are high, they are possible.
Do you have the windblown dust option turned on? You could try turning that off (setenv CTM_WB_DUST N) if you think the model is generating too much dust.
Thank you for your response. I will check my emission file.
Does the high concentration of PM10 affect the concentration of O3？