# Is there available CO2 and CH4 emission input files in NEI2011 for SMOKE **URL:** \ **Category:** Emissions Inventory\ **Tags:** emissions\ **Created:** [June 13, 2023, 4:31pm UTC](https://forum.cmascenter.org/t/is-there-available-co2-and-ch4-emission-input-files-in-nei2011-for-smoke/4168 "2023-06-13T16:31:29Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![Rypo](https://avatars.discourse-cdn.com/v4/letter/r/85f322/32.png) [@Rypo](https://forum.cmascenter.org/u/Rypo)\ **Post date:** [June 13, 2023, 4:31pm UTC](https://forum.cmascenter.org/t/is-there-available-co2-and-ch4-emission-input-files-in-nei2011-for-smoke/4168/1 "2023-06-13T16:31:29Z")
Hi all, I have a quick question, are there available CO2 and CH4 emission input files for NEI2011 to run SMOKE? Thank you in advance. ---
**Author:** ![eyth.alison](https://avatars.discourse-cdn.com/v4/letter/e/7ab992/32.png) [@eyth.alison](https://forum.cmascenter.org/u/eyth.alison)\ **Post date:** [June 15, 2023, 3:15am UTC](https://forum.cmascenter.org/t/is-there-available-co2-and-ch4-emission-input-files-in-nei2011-for-smoke/4168/2 "2023-06-15T03:15:54Z")
There are several versions of the 2011 platform data posted, but CO2 is only available for a subset of sources. CH4 is typically produced through speciation, so may be included. Thus a complete set of CO2 and CH4 for 2011 is not available. ---
**Author:** ![Rypo](https://avatars.discourse-cdn.com/v4/letter/r/85f322/32.png) [@Rypo](https://forum.cmascenter.org/u/Rypo)\ **Post date:** [June 15, 2023, 6:25pm UTC](https://forum.cmascenter.org/t/is-there-available-co2-and-ch4-emission-input-files-in-nei2011-for-smoke/4168/3 "2023-06-15T18:25:40Z")
Hi Alison, Thank you for your reply and this information! Sorry, I am a little confused. What do you mean by a subset of sources? I wonder if there is any way to use SMOKE to get CO2 and CH4 emissions for 2011. If not, I may have to turn to other ways to do that. Thank you. ---
**Author:** ![eyth.alison](https://avatars.discourse-cdn.com/v4/letter/e/7ab992/32.png) [@eyth.alison](https://forum.cmascenter.org/u/eyth.alison)\ **Post date:** [June 15, 2023, 6:42pm UTC](https://forum.cmascenter.org/t/is-there-available-co2-and-ch4-emission-input-files-in-nei2011-for-smoke/4168/4 "2023-06-15T18:42:07Z")
The 2011 platform emissions that are posted for emission modeling are stored here: [https://gaftp.epa.gov/Air/emismod/2011/v3platform/](https://gaftp.epa.gov/Air/emismod/2011/v3platform/) There is no CO2 included for nonpoint sources in the 2011 platforms. There is no CO2 for commercial marine vessels – and probably not for locomotive / rail / aircraft sources. For 2011, the number of point sources that include CO2 would be pretty limited – although coverage has improved in more recent years. I am not sure if the 2022 inventories for onroad and nonroad include CO2 - you could check the files. So, overall, I don’t think the 2011 platform inventories reflect CO2 for most of the sources that emit it, and therefore would not be a good data source for modeling CO2 in 2011. ---
**Author:** ![Rypo](https://avatars.discourse-cdn.com/v4/letter/r/85f322/32.png) [@Rypo](https://forum.cmascenter.org/u/Rypo)\ **Post date:** [June 15, 2023, 6:54pm UTC](https://forum.cmascenter.org/t/is-there-available-co2-and-ch4-emission-input-files-in-nei2011-for-smoke/4168/5 "2023-06-15T18:54:38Z")
I see, thank you for the quick reply and this detailed information! ---
**Author:** ![Rypo](https://avatars.discourse-cdn.com/v4/letter/r/85f322/32.png) [@Rypo](https://forum.cmascenter.org/u/Rypo)\ **Post date:** [June 15, 2023, 11:28pm UTC](https://forum.cmascenter.org/t/is-there-available-co2-and-ch4-emission-input-files-in-nei2011-for-smoke/4168/6 "2023-06-15T23:28:57Z")
Hi Alison, Sorry, one more question, could I know which each year’s inventory should be sufficient to run SMOKE to get CO2 and CH4 emissions? Thank you. ---
**Author:** ![eyth.alison](https://avatars.discourse-cdn.com/v4/letter/e/7ab992/32.png) [@eyth.alison](https://forum.cmascenter.org/u/eyth.alison)\ **Post date:** [June 16, 2023, 12:33pm UTC](https://forum.cmascenter.org/t/is-there-available-co2-and-ch4-emission-input-files-in-nei2011-for-smoke/4168/7 "2023-06-16T12:33:38Z")
None of the NEI / modeling platform inventories have those emissions for all sectors – notably nonpoint emissions are missing them. 2020 has the most coverage including facility totals from EPA GHG reporting program and some State / local emissions CO2 is included for mobile sources, and CH4 for some mobile sources (not CMV). CO2 and CH4 are included for wild and prescribed fires. ---
**Author:** ![Rypo](https://avatars.discourse-cdn.com/v4/letter/r/85f322/32.png) [@Rypo](https://forum.cmascenter.org/u/Rypo)\ **Post date:** [June 16, 2023, 2:16pm UTC](https://forum.cmascenter.org/t/is-there-available-co2-and-ch4-emission-input-files-in-nei2011-for-smoke/4168/8 "2023-06-16T14:16:15Z")
I see, thank you for this information! ---
**Author:** ![eyth.alison](https://avatars.discourse-cdn.com/v4/letter/e/7ab992/32.png) [@eyth.alison](https://forum.cmascenter.org/u/eyth.alison)\ **Post date:** [June 20, 2023, 3:12am UTC](https://forum.cmascenter.org/t/is-there-available-co2-and-ch4-emission-input-files-in-nei2011-for-smoke/4168/9 "2023-06-20T03:12:50Z")
P.S. if you which to retrieve any CO2 emissions from 2020, you can go here: [https://awsedap.epa.gov/public/single/?appid=20230c40-026d-494e-903f-3f112761a208&sheet=5d3fdda7-14bc-4284-a9bb-cfd856b9348d&opt=ctxmenu,currsel](https://awsedap.epa.gov/public/single/?appid=20230c40-026d-494e-903f-3f112761a208&sheet=5d3fdda7-14bc-4284-a9bb-cfd856b9348d&opt=ctxmenu,currsel) The modeling platform is not yet posted but should be later this summer. ---
**Author:** ![Rypo](https://avatars.discourse-cdn.com/v4/letter/r/85f322/32.png) [@Rypo](https://forum.cmascenter.org/u/Rypo)\ **Post date:** [June 20, 2023, 2:02pm UTC](https://forum.cmascenter.org/t/is-there-available-co2-and-ch4-emission-input-files-in-nei2011-for-smoke/4168/10 "2023-06-20T14:02:14Z")
I see, thank you again for this information!