3 districts with recorded prices.
For 2025 the Exchange holds recorded ERC prices from 3 California districts. NOx ran from $2,700 per ton in Imperial County to $12,000 in San Joaquin Valley. ROG / VOC ran from $2,025 per ton in Imperial County to $4,500 in San Joaquin Valley. PM10 ran from $600 per ton in Imperial County to $9,040 in Mojave Desert. 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.
| District | $/ton | Range | n | Source |
|---|---|---|---|---|
| San Joaquin Valley | $12,000 | $9,500–$16,500 | 5 | District records |
| Imperial County | $2,700 | $2,700–$2,778 | 5 | District records |
| District | $/ton | Range | n | Source |
|---|---|---|---|---|
| San Joaquin Valley | $4,500 | $4,500–$4,500 | 1 | District records |
| Imperial County | $2,025 | $2,025–$2,025 | 2 | District records |
| District | $/ton | Range | n | Source |
|---|---|---|---|---|
| Mojave Desert | $9,040 | $9,040–$9,040 | 2 | District records |
| Imperial County | $600 | $450–$1,200 | 30 | District records |
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.