My colleague used CMAQ version 5.3.1 and shared the output data with me.
I want to calculate PM2.5 using the variables in this output file and proceed with my research.
As I understand, PM2.5 is basically calculated as:
PM2.5=PM25AT×Aitken mode mass+PM25AC×Accumulation mode mass+PM25CO×Coarse mode mass\text{PM2.5} = \text{PM25AT} \times \text{Aitken mode mass} + \text{PM25AC} \times \text{Accumulation mode mass} + \text{PM25CO} \times \text{Coarse mode mass}PM2.5=PM25AT×Aitken mode mass+PM25AC×Accumulation mode mass+PM25CO×Coarse mode mass
I do have the variables PM25AT, PM25AC, and PM25CO in my dataset, but I am unsure which specific variables I should use to calculate PM2.5 correctly.
Here is a list of the main variables I have:
‘TFLAG’, ‘NO2’, ‘NO’, ‘O’, ‘O3’, ‘NO3’, ‘O1D’, ‘OH’, ‘HO2’, ‘H2O2’, ‘N2O5’, ‘HNO3’, ‘HONO’, ‘PNA’, ‘SO2’, ‘SULF’, ‘SULRXN’, ‘C2O3’, ‘MEO2’, ‘RO2’, ‘PAN’, ‘PACD’, ‘AACD’, ‘CXO3’, ‘ALD2’, ‘XO2H’, ‘PANX’, ‘FORM’, ‘MEPX’, ‘MEOH’, ‘ROOH’, ‘XO2’, ‘XO2N’, ‘XPAR’, ‘XPRP’, ‘NTR1’, ‘NTR2’, ‘FACD’, ‘CO’, ‘HCO3’, ‘ALDX’, ‘GLYD’, ‘GLY’, ‘MGLY’, ‘ETHA’, ‘ETOH’, ‘KET’, ‘PAR’, ‘ACET’, ‘PRPA’, ‘ROR’, ‘ETHY’, ‘ETH’, ‘OLE’, ‘IOLE’, ‘ISOP’, ‘ISO2’, ‘ISOPRXN’, ‘ISPD’, ‘INTR’, ‘ISPX’, ‘HPLD’, ‘OPO3’, ‘EPOX’, ‘IEPOXP’, ‘EPX2’, ‘TERP’, ‘APIN’, ‘TERPNRO2’, ‘MTNO3’, ‘TRPRXN’, ‘BENZENE’, ‘CRES’, ‘BZO2’, ‘OPEN’, ‘BENZRO2’, ‘TOL’, ‘TO2’, ‘TOLRO2’, ‘XOPN’, ‘XYLMN’, ‘XLO2’, ‘XYLRO2’, ‘NAPH’, ‘PAHRO2’, ‘CRO’, ‘CAT1’, ‘CRON’, ‘OPAN’, ‘ECH4’, ‘CL2’, ‘CL’, ‘HOCL’, ‘CLO’, ‘FMCL’, ‘HCL’, ‘CLNO2’, ‘CLNO3’, ‘SESQ’, ‘SESQRXN’, ‘SOAALK’, ‘H2NO3PIJ’, ‘H2NO3PK’, ‘VLVPO1’, ‘VSVPO1’, ‘VSVPO2’, ‘VSVPO3’, ‘VIVPO1’, ‘VLVOO1’, ‘VLVOO2’, ‘VSVOO1’, ‘VSVOO2’, ‘VSVOO3’, ‘PCVOC’, ‘PCSOARXN’, ‘FORM_PRIMARY’, ‘ALD2_PRIMARY’, ‘BUTADIENE13’, ‘ACROLEIN’, ‘ACRO_PRIMARY’, ‘TOLU’, ‘HG’, ‘HGIIAER’, ‘HGIIGAS’, ‘SVAVB1’, ‘SVAVB2’, ‘SVAVB3’, ‘SVAVB4’, ‘ASO4J’, ‘ASO4I’, ‘ANH4J’, ‘ANH4I’, ‘ANO3J’, ‘ANO3I’, ‘AISO1J’, ‘AISO2J’, ‘ASQTJ’, ‘AORGCJ’, ‘AECJ’, ‘AECI’, ‘AOTHRJ’, ‘AOTHRI’, ‘AFEJ’, ‘AALJ’, ‘ASIJ’, ‘ATIJ’, ‘ACAJ’, ‘AMGJ’, ‘AKJ’, ‘AMNJ’, ‘ACORS’, ‘ASOIL’, ‘NUMATKN’, ‘NUMACC’, ‘NUMCOR’, ‘SRFATKN’, ‘SRFACC’, ‘SRFCOR’, ‘AORGH2OJ’, ‘AH2OJ’, ‘AH2OI’, ‘AH3OPJ’, ‘AH3OPI’, ‘ANAJ’, ‘ANAI’, ‘ACLJ’, ‘ACLI’, ‘ASEACAT’, ‘ACLK’, ‘ASO4K’, ‘ANH4K’, ‘ANO3K’, ‘AH2OK’, ‘AH3OPK’, ‘AISO3J’, ‘AOLGAJ’, ‘AOLGBJ’, ‘AGLYJ’, ‘AMTNO3J’, ‘AMTHYDJ’, ‘APOCI’, ‘APOCJ’, ‘APNCOMI’, ‘APNCOMJ’, ‘APCSOJ’, ‘ALVPO1I’, ‘ASVPO1I’, ‘ASVPO2I’, ‘ALVPO1J’, ‘ASVPO1J’, ‘ASVPO2J’, ‘ASVPO3J’, ‘AIVPO1J’, ‘ALVOO1I’, ‘ALVOO2I’, ‘ASVOO1I’, ‘ASVOO2I’, ‘ALVOO1J’, ‘ALVOO2J’, ‘ASVOO1J’, ‘ASVOO2J’, ‘ASVOO3J’, ‘AAVB1J’, ‘AAVB2J’, ‘AAVB3J’, ‘AAVB4J’, ‘AMT1J’, ‘AMT2J’, ‘AMT3J’, ‘AMT4J’, ‘AMT5J’, ‘AMT6J’, ‘NH3’, ‘SVISO1’, ‘SVISO2’, ‘SVSQT’, ‘LVPCSOG’, ‘SVMT1’, ‘SVMT2’, ‘SVMT3’, ‘SVMT4’, ‘SVMT5’, ‘SVMT6’, ‘WVEL’, ‘RH’, ‘TA’, ‘PRES’
‘STDEVATKN’, ‘STDEVACC’, ‘STDEVCOR’, ‘DGATKN_DRY’, ‘DGACC_DRY’, ‘DGCOR_DRY’, ‘DGATKN_WET’, ‘DGACC_WET’, ‘DGCOR_WET’, ‘M2ATKN_WET’, ‘M2ACC_WET’, ‘M2COR_WET’, ‘M3ATKN_DRY’, ‘M3ACC_DRY’, ‘M3COR_DRY’, ‘M3ATKN_WET’, ‘M3ACC_WET’, ‘M3COR_WET’, ‘RH’, ‘PM1AT’, ‘PM1AC’, ‘PM1CO’, ‘PM25AT’, ‘PM25AC’, ‘PM25CO’, ‘PM10AT’, ‘PM10AC’, ‘PM10CO’, ‘AMSAT’, ‘AMSAC’, ‘AMSCO’, ‘GAMMA_N2O5’, ‘GAMMA_N2O5K’, ‘YIELD_CLNO2’, ‘YIELD_CLNO2K’, ‘GAMMA_IEPOX’, ‘DENS_ATKN’, ‘DENS_ACC’, ‘DENS_COR’
Could you please advise me on which variables should be used to calculate PM2.5?