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# Speciation profiles file
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The speciation profiles file is where the user defines the expressions to convert primary pollutant species to specific chemical mechanism species for each ID profile.
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HERMESv3_GR can map base pollutants to several gas-phase and aerosol chemical mechanism, including CB05, CB05e51, RADM2, AERO5, AERO6 and MADE/SORGAM.
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Note that the name and number of the columns will vary according to the chemical mechanism. The names and units of the pollutants in the emission output file estimated by HERMESv3_GR will be the same as the ones defined in the file.
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Example of the CMAQ CB05 and AERO5 prepared file.
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## Example
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```text
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ID;NO;NO2;HONO;CO;SO2;NH3;ALD2;ALDX;BENZENE;ETH;ETHA;ETOH;FORM;IOLE;ISOP;MEOH;OLE;PAR;SESQ;TERP;TOL;XYL;DMS;HCL;SULF;POC;PEC;PNO3;PSO4;PMFINE;PMC
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units;mol.s-1;mol.s-1;mol.s-1;mol.s-1;mol.s-1;mol.s-1;mol.s-1;mol.s-1;mol.s-1;mol.s-1;mol.s-1;mol.s-1;mol.s-1;mol.s-1;mol.s-1;mol.s-1;mol.s-1;mol.s-1;mol.s-1;mol.s-1;mol.s-1;mol.s-1;mol.s-1;mol.s-1;mol.s-1;g.s-1;g.s-1;g.s-1;g.s-1;g.s-1;g.s-1
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short_description;nitrogen_monoxide;nitrogen_dioxide;nitrous_acid;carbon_monoxide;sulfur_dioxide;ammonia;acetaldehyde;higher_aldehydes;benzene;ethene;ethane;ethanol;formaldehyde;internal_olefin_carbon_bond;isoprene;methanol;terminal_olefin_carbon_bond;paraffin_carbon_bond;sesquiterpenes;terpene;toluene;xylene;dimethyl_sulfide;hydrogen_chloride;sulfuric_acid;primary_organic_carbon;primary_elemental_carbon;primary_nitrate_fine;primary_sulfate_fine;primary_others_fine;pm_coarse
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E001;0.72*nox_no;0.18*nox_no;0.1*nox_no;co;so2;nh3;c2h4o;0;c6h6;c2h4;c2h6;c2h5oh;0;0.5*hialkenes;c5h8;ch3oh;c8h16+c5h10+c3h6+c4h8+c6h12+0.5*hialkanes;4*c4h10+6*c6h14+5*hialkanes+6*c8h16+3*c5h10+c3h6+3*c3h6o+2*c4h8+7*c7h16+4*c6h12+hialkenes+5*c5h12+1.5*c3h8;0;terpenes;ch2o+c7h8;c8h10;c2h6s;0;0;oc;5.9*bc;0;0;3.3*pm25-3*oc-5.9*bc;0
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E002;0.9*nox_no2;0.1*nox_no2;0;co;so2;nh3;0.625*voc22;0.375*voc22;voc13;voc07;voc02;0.5*voc01;voc21;0.666*voc12;0;0.5*voc01;voc08+0.333*voc12;1.5*voc03+4*voc04+5*voc05+7.5*voc06+voc08+voc09+voc13+voc16+2.2*voc17+1.875*voc22+4*voc23+voc24;0;0;voc14+0.2*voc17;voc15+voc16+voc17;0;0;0;oc;bc;0;(pm25-oc-bc)*0.155;(pm25-oc-bc)*0.845;pm10-pm25
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E003;0.9*nox_no2;0.1*nox_no2;0;co;so2;nh3;0.625*voc22;0.01*voc18+0.3*voc19+0.375*voc22;voc13;voc07;voc02;0.5*voc01;voc21;0.666*voc12;0;0.5*voc01;voc08+0.333*voc12;1.5*voc03+4*voc04+5*voc05+7.5*voc06+voc08+voc09+voc13+voc16+2.2*voc17+4.11*voc18+4*voc19+1.875*voc22+4*voc23+voc24;0;0;voc14+0.2*voc17;voc15+voc16+voc17;0;0;0;oc;bc;0;(pm25-oc-bc)*0.089;(pm25-oc-bc)*0.911;pm10-pm25
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E004;0.9*nox_no2;0.1*nox_no2;0;co;so2;nh3;0.625*voc22;0.3*voc19+0.375*voc22;voc13;voc07;voc02;0.5*voc01;voc21;0.666*voc12;0;0.5*voc01;voc08+0.333*voc12;1.5*voc03+4*voc04+5*voc05+7.5*voc06+voc08+voc09+voc13+voc16+2.2*voc17+4*voc19+1.875*voc22+4*voc23+voc24;0;0;voc14+0.2*voc17;voc15+voc16+voc17;0;0;0;oc;bc;0;(pm25-oc-bc)*0.047;(pm25-oc-bc)*0.953;pm10-pm25
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```
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## Columns
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| **Option** | **Details** |
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| :--------: | :----- |
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| ID | ID of the speciation profile that appears in he _p_speciation_ column of the [emission inventory selection file](examples_cross_table.md).|
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| <output_pollutant_name> (columns) | Formula to calculate the output pollutant using the input pollutant that appears in the _pollutants_ column of the [emission inventory selection file](examples_cross_table.md).|
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| units | Units of the output pollutants. |
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| short_description | Description of the pollutant specie. |
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### Prepared files
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+ CMAQ CB05 and AERO5
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```text
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p_speciation = <input_dir>/data/profiles/speciation/Speciation_profile_cb05_aero5_CMAQ.csv
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```
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+ CMAQ CB05 and AERO6
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```text
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p_speciation = <input_dir>/data/profiles/speciation/Speciation_profile_cb05_aero6_CMAQ.csv
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```
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+ CMAQ CB05e51 and AERO6
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```text
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p_speciation = <input_dir>/data/profiles/speciation/Speciation_profile_cb05e51_aero6_CMAQ.csv
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```
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+ MONARCH CB05 and AERO5
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```text
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p_speciation = <input_dir>/data/profiles/speciation/Speciation_profile_cb05_aero5_MONARCH.csv
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```
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[Go to User guide page](user_guide) |
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\ No newline at end of file |