In 2021 the district's own transaction records list 6 priced ERC sales in Yolo-Solano AQMD. NOx: 1 recorded sale at a median of $40,000 per ton; ROG / VOC: 1 recorded sale at a median of $25,000 per ton; PM10: 2 recorded sales at a median of $21,140 per ton ($17,000–$25,280); SOx: 1 recorded sale at a median of $17,000 per ton; CO: 1 recorded sale at a median of $3,391 per ton. Prices are per ton as the district recorded them.
Each line runs from the lowest to the highest recorded price that year; the dot is the median.
ROG / VOC in Yolo-Solano, every recorded year
Each line runs from the lowest to the highest recorded price that year; the dot is the median.
PM10 in Yolo-Solano, every recorded year
Each line runs from the lowest to the highest recorded price that year; the dot is the median.
SOx in Yolo-Solano, every recorded year
Each line runs from the lowest to the highest recorded price that year; the dot is the median.
CO in Yolo-Solano, every recorded year
Each line runs from the lowest to the highest recorded price that year; the dot is the median; the scale is logarithmic because prices span more than a hundredfold.
The 2021 sales
Date
Pollutant
Amount
$/t
Certificate
2021-02-08
VOC
0.45 tons
$25,000
EC-0452
2021-02-08
CO
5.52 tons
$3,391
EC-0452
2021-02-08
NOx
0.5 tons
$40,000
EC-0452
2021-02-11
SOx
0.11 tons
$17,000
EC-0454
2021-02-11
PM10
0.61 tons
$17,000
EC-0454
2021-03-15
PM10
0.22 tons
$25,280
EC-0458
Source: YSAQMD ERC Transactions (printed 19-May-25). Every row, with its source, is in the transaction download. 2020 · 2022