3.5 Use of California Submitted Emissions
California submitted criteria and HAP nonroad emissions for EPA’s use in the NEI. California estimates emissions with California-specific inventory tools and converts them from their EIC codes to SCC codes via a crosswalk (Nonroad CARB SCC Xwalk.xlsx). The California criteria emissions and most HAP emissions were used directly. PAHs were not included in the California estimates dataset, so PAH emissions were taken from MOVES rather than from CARB. A list of the PAHs which are based on MOVES data rather than CARB data in California is in Table 3.5.
| Pollutant | Pollutant Code |
|---|---|
| Acenaphthene | 83329 |
| Acenaphthylene | 208968 |
| Anthracene | 120127 |
| Benz[a]Anthracene | 56553 |
| Benzo[a]Pyrene | 50328 |
| Benzo[b]Fluoranthene | 205992 |
| Benzo[g,h,i,]Perylene | 191242 |
| Benzo[k]Fluoranthene | 207089 |
| Chrysene | 218019 |
| Dibenzo[a,h]Anthracene | 53703 |
| Fluoranthene | 206440 |
| Fluorene | 86737 |
| Indeno[1,2,3-c,d]Pyrene | 193395 |
| Phenanthrene | 85018 |
| Pyrene | 129000 |
In addition, CO2 data were added to the California nonroad inventory based on EPA estimates, because CO2 emissions were not provided in the submission. EPA also speciated CARB total PM2.5 and PM10 using the same approach as for other states and copied the PM2.5 and PM10 to DIESEL-PM “pollutants” for all diesel SCCs. The California nonroad inventory included total chromium emissions, from which hexavalent chromium (pollutant code 18540299) was estimated as 0.29484% of total chromium. Table 3.6 illustrates pollutants and data source in the 2023 NEI.
| CAS | Pollutant Description | Pollutant Category | CA Data Source |
|---|---|---|---|
| 100414 | Ethylbenzene | VOC HAP | CARB |
| 100425 | Styrene | VOC HAP | CARB |
| 106423 | Xylenes (mixed isomers) | VOC HAP | CARB |
| 106990 | Butadiene, 1,3- | VOC HAP | CARB |
| 107028 | Acrolein | VOC HAP | CARB |
| 108383 | Xylenes (mixed isomers) | VOC HAP | CARB |
| 108883 | Toluene | VOC HAP | CARB |
| 110543 | Hexane | VOC HAP | CARB |
| 120127 | Anthracene | PAH | MOVES |
| 123386 | Propionaldehyde | VOC HAP | CARB |
| 129000 | Pyrene | PAH | MOVES |
| 1330207 | Xylenes (mixed isomers) | VOC HAP | CARB |
| 18540299 | Chromium VI | metal | CARB |
| 191242 | Benzo[g,h,i,]Perylene | PAH | MOVES |
| 193395 | Indeno[1,2,3-c,d]Pyrene | PAH | MOVES |
| 205992 | Benzo[b]Fluoranthene | PAH | MOVES |
| 206440 | Fluoranthene | PAH | MOVES |
| 207089 | Benzo[k]Fluoranthene | PAH | MOVES |
| 208968 | Acenaphthylene | PAH | MOVES |
| 218019 | Chrysene | PAH | MOVES |
| 50000 | Formaldehyde | VOC HAP | CARB |
| 50328 | Benzo[a]Pyrene | PAH | MOVES |
| 53703 | Dibenzo[a,h]Anthracene | PAH | MOVES |
| 540841 | Trimethylpentane, 2,2,4- | VOC HAP | CARB |
| 56553 | Benz[a]Anthracene | PAH | MOVES |
| 71432 | Benzene | VOC HAP | CARB |
| 7439965 | Manganese | metal | CARB |
| 7439976 | Mercury, Unspeciated | metal | CARB |
| 7440020 | Nickel | metal | CARB |
| 7440382 | Arsenic | metal | CARB |
| 75070 | Acetaldehyde | VOC HAP | CARB |
| 83329 | Acenaphthene | PAH | MOVES |
| 85018 | Phenanthrene | PAH | MOVES |
| 86737 | Fluorene | PAH | MOVES |
| 91203 | Naphthalene | VOC HAP | CARB |
| 95476 | O-xylene | VOC HAP | CARB |
| CH4 | Methane | GHG | MOVES CH4 * CARB VOC/MOVES VOC |
| CO | Carbon Monoxide | CAP | CARB |
| CO2 | Carbon Dioxide | GHG | MOVES state total, allocated to county-SCC by CARB SO2 |
| DIESEL-PM10 | Diesel PM10 | HAP | CARB |
| DIESEL-PM25 | Diesel PM2.5 | HAP | CARB |
| EC | elemental carbon | speciated PM | CARB w/MOVES speciation |
| N2O | Nitrous Oxide | GHG | MOVES state total, allocated to county-SCC by CARB SO2 |
| NH3 | Ammonia | CAP | MOVES state total, allocated to county-SCC by CARB SO2 |
| NO3 | particulate nitrate | speciated PM | CARB w/MOVES speciation |
| NOX | Nitrogen oxides | CAP | CARB |
| OC | organic carbon | speciated PM | CARB w/MOVES speciation |
| PM10-PRI | Particulate matter, 10 microns and less | CAP | CARB |
| PM25-PRI | Particulate matter, 2.5 microns and less | CAP | CARB |
| PMFINE | pmfine | speciated PM | CARB w/MOVES speciation |
| SO2 | Sulfur Dioxide | CAP | CARB |
| SO4 | particulate sulfate | speciated PM | CARB w/MOVES speciation |
| VOC | Volatile organic compounds | CAP | CARB |