Table A1.
Annual benefit of biogas use (USD/year).
| Items | Small | Medium | Large | Average |
|---|---|---|---|---|
| CO2 emission | 14.17 | 19.83 | 28.33 | 20.78 |
| Health | 12.86 | 10.12 | 6.43 | 9.80 |
Annual benefit of biogas use (USD/year).
| Items | Small | Medium | Large | Average |
|---|---|---|---|---|
| CO2 emission | 14.17 | 19.83 | 28.33 | 20.78 |
| Health | 12.86 | 10.12 | 6.43 | 9.80 |