For 2023 the Exchange holds recorded ERC prices from 10 California districts. NOx ran from $2,500 per ton in Imperial County to $400,000 in South Coast. ROG / VOC ran from $1,100 per ton in Imperial County to $174,845 in San Joaquin Valley. PM10 ran from $485 per ton in Imperial County to $460,000 in South Coast. SOx was recorded only in Yolo-Solano, at $17,000 per ton. CO was recorded only in Yolo-Solano, at $3,400 per ton. Each figure is the median (or, where only an average was published, the average) per ton for that district and pollutant, with the number of sales it rests on and its source.
NOx, 2023
| District | $/ton | Range | n | Source |
|---|
| South Coast | $400,000 | $380,000–$420,000 | 9 | CARB 2023 report |
| Santa Barbara County | $125,000 | $125,000–$125,000 | 2 | CARB 2023 report |
| Ventura County | $65,000 | $65,000–$65,000 | 2 | CARB 2023 report |
| Yolo-Solano | $37,800 | $37,800–$37,800 | 1 | District records |
| Feather River | $30,000 | $30,000–$30,000 | 11 | CARB 2023 report |
| Bay Area | $29,000 | $23,236–$29,090 | 7 | CARB 2023 report |
| San Joaquin Valley | $13,750 | $9,500–$18,000 | 2 | District records |
| Imperial County | $2,500 | $2,000–$3,098 | 93 | CARB 2023 report |
ROG / VOC, 2023
| District | $/ton | Range | n | Source |
|---|
| San Joaquin Valley | $174,845 | $174,690–$175,000 | 2 | District records |
| Ventura County | $67,275 | $67,275–$67,275 | 2 | CARB 2023 report |
| Mojave Desert | $35,000 | $35,000–$35,000 | 3 | District records |
| Feather River | $30,000 | $25,000–$30,000 | 11 | CARB 2023 report |
| Yolo-Solano | $25,000 | $23,750–$40,000 | 17 | District records |
| Placer County | $25,000 | $25,000–$30,000 | 4 | CARB 2023 report |
| South Coast | $22,000 | $12,000–$27,000 | 9 | CARB 2023 report |
| Imperial County | $1,100 | $1,000–$2,692 | 93 | CARB 2023 report |
PM10, 2023
| District | $/ton | Range | n | Source |
|---|
| South Coast | $460,000 | $460,000–$460,000 | 9 | CARB 2023 report |
| Feather River | $32,594 | $32,594–$32,594 | 11 | CARB 2023 report |
| Yolo-Solano | $17,500 | $17,500–$17,500 | 1 | District records |
| Mojave Desert | $9,000 | $1,000–$9,000 | 4 | District records |
| Imperial County | $485 | $400–$600 | 93 | CARB 2023 report |
SOx, 2023
CO, 2023
n is the number of priced sales behind the figure; for CARB's reports it is the district's recorded transactions that year across all pollutants. Prices are as recorded, not adjusted for inflation.