EDGAR v8.1_VOC_spec
Non-methane volatile organic compounds (NMVOC) include a large number of chemical species differing for their chemical composition and properties. The disaggregation of total NMVOC emissions into species is thus required to better model ozone and secondary organic aerosols formation. Region- and sector-specific NMVOC speciation profiles are here developed and applied to the EDGARv8.1 database, with the same sector resolution as the total NMVOC. The complete documentation on the speciation profiles and on the methodology used can be found in Huang et al. (ACP, 2017), while the list of 25 individual species or species groups used for the speciation is reported below.
List of GEIA 25 NMVOC groups with molecular formula:
GEIA ID | GEIA group | Molecular formula |
---|---|---|
voc1 | Alkanols (alcohols) | CnH2n+1OH |
voc2 | Ethane | C2H6 |
voc3 | Propane | C3H8 |
voc4 | Butanes | C4H10 |
voc5 | Pentanes | C5H12 |
voc6 | Hexanes and higher alkanes | CnH2n+2 (n ≥ 6) |
voc7 | Ethene (ethylene) | C2H4 |
voc8 | Propene | C3H6 |
voc9 | Ethyne (acetylene) | C2H2 |
voc10 | Isoprenes | C5H8 |
voc11 | Monoterpenes | C10H16 |
voc12 | Other alk(adi)enes/alkynes (olefines) | CnH2n-2 |
voc13 | Benzene (benzol) | C6H6 |
voc14 | Methylbenzene (toluene) | C7H8 |
voc15 | Dimethylbenzenes (xylenes) | C6H4(CH3)2 |
voc16 | Trimethylbenzenes | C6H3(CH3)3 |
voc17 | Other aromatics | CnH2n-6 |
voc18 | Esters | R-C(=O)O-R' |
voc19 | Ethers (alkoxy alkanes) | R-O-R' |
voc20 | Chlorinated hydrocarbons | CH3Cl |
voc21 | Methanal (formaldehyde) | CH2O |
voc22 | Other alkanals (aldehyedes) | R-CHO |
voc23 | Alkanones (ketones) | R-C(=O)-R' |
voc24 | Acids (alkanoic) | R-CnHnCOOH |
voc25 | Other NMVOC (HCFCs, nitriles, etc.) | NA |
Notes: R and R’ denote functional groups. Where general formulae are not appropriate, the simplest molecular formula representing the group is provided. NA = not available |
The NMVOC EDGARv8.1 database includes all anthropogenic emissions with the exception of large scale biomass burning. As such, the following sectors are covered in the NMVOC dataset of EDGARv8.1: power generation (ENE), combustion for manufacturing industry (IND), energy for buildings (RCO), road transportation including evaporative emissions for gasoline related fuels (TRO), transformation industry (TRF), fugitive emissions from fuel exploitation (PRO), process emissions during production and application including production of chemicals, paper/food/iron and steel production/ solvent use (PPA), oil refineries (REF), agricultural waste burning (AWB), shipping including both domestic and international shipping (SHIP), railways/ pipelines and off-road transport (TNR_OTH), fossil fuel fires (FFF), waste solid and wastewater (SWD), aviation differentiating among climbing and descent (TNR_AVI_CDS), cruise (TNR_AVI_CRS), landing and take-off (TNR_AVI_LTO) and supersonic (TNR_AVI_SPS).
For each NMVOC species emission time series (1970-2022) by sector and country are provided in an overview table (.xlsx).
Notes: Emission country totals are expressed in kton substance / year. The IPCC 1996 and 2006 codes are used for specification of the sectors.
For each sector annual gridmaps (2000-2022) are provided.
Notes: Emission gridmaps are expressed in ton substance / 0.1degree x 0.1degree / year for the .txt and .nc files. Emission fluxes are expressed in kg substance /m2 /s for the .nc files. The IPCC 1996 and 2006 codes are used for specification of the sectors.
Huang, G., Brook, R., Crippa, M., Janssens-Maenhout, G., Schieberle, C., Dore, C., Guizzardi, D., Muntean, M., Schaaf, E., and Friedrich, R.: Speciation of anthropogenic emissions of non-methane volatile organic compounds: a global gridded data set for 1970–2012, Atmos. Chem. Phys., 17, 7683–7701, doi:10.5194/acp-17-7683-2017, 2017
For more information or data: JRC-EDGAR@ec.europa.eu