Conversely, CH4 emissions may be overestimated by the NGHGEI, which employed the 1996 IPCC EF for CNG vehicles that is almost 5 times higher than that presented in the 2006 guidelines employed in the present study.
Conversely, CH4 emissions may be overestimated by the NGHGEI, which employed the 1996 IPCC EF for CNG vehicles that is almost 5 times higher than that presented in the 2006 guidelines employed in the present study.