Unexpected Methane Emissions From Old Small Fishing Vessels in China

Wang, Lizhi1,2,3; Du, Wei2,4; Shen, Huizhong5,6; Chen, Yuanchen7; Zhu, Xi2; Yun, Xiao2; Shen, Guofeng2; Chen, Yilin5,6; Liu, Junfeng2; Wang, Xuejun2; Tao, Shu2,5,6

2022-06-06

10.3389/fenvs.2022.907868

FRONTIERS IN ENVIRONMENTAL SCIENCE   影响因子和分区

2296-665X

Diesel-fueled ships have long been considered to contribute a marginal fraction of the global methane (CH4) emission budget compared to liquified natural gas (LNG)-fueled ships. Here, based on real-world measurements, we find that a specific yet-overlooked group of diesel-fueled ships-the old small fishing vessels (OSFVs)-is associated with high levels of CH4 emissions. The emission factors of CH4 from OSFVs is on average 5.2 +/- 6.4 g CH4 per 1 kg fuel consumed, approaching EFCH4 of LNG-fueled ships (5.3-30.1 g/kg) and being at least six times EFCH4 of other types of diesel-fueled ships (0.0-0.9 g/kg). We estimate that CH4 emissions from OSFVs in China amount to 570-2,240 t per year, which is comparable to the total CH4 emission from all LNG-fueled ships worldwide. Our results thus call for revision of the global CH4 emission inventory for shipping.

methane emission old small fishing vessel emission factor climate change China

SCI

英语

通讯

National Natural Science Foundation of China[41991312,41821005,41922057,41830641,42192510] ; Department of Science and Technology of Guangdong Province[2021B1212050024] ; Department of Education of Guangdong Province[2021KCXTD004] ; Shenzhen Environmental Monitoring Center[0722-216FE4812SZF-2]

Environmental Sciences & Ecology

Environmental Sciences

WOS:000813292200001

FRONTIERS MEDIA SA

Web of Science

1.Hainan Univ, Key Lab Agroforestry Environm Proc & Ecol Regulat, Haikou, Peoples R China
2.Peking Univ, Sino French Inst Earth Syst Sci, Coll Urban & Environm Sci, Lab Earth Surface Proc, Beijing, Peoples R China
3.Hainan Univ, Coll Ecol & Environm, Haikou, Peoples R China
4.East China Normal Univ, Sch Geog Sci, Key Lab Geog Informat Sci, Minist Educ, Shanghai, Peoples R China
5.Southern Univ Sci & Technol, Sch Environm Sci & Engn, Shenzhen, Peoples R China
6.Southern Univ Sci & Technol, Guangdong Prov Observat & Res Stn Coastal Atmosphe, Shenzhen, Peoples R China
7.Zhejiang Univ Technol, Coll Environm, Res Ctr Environm Sci, Hangzhou, Peoples R China

Wang, Lizhi,Du, Wei,Shen, Huizhong,et al. Unexpected Methane Emissions From Old Small Fishing Vessels in China[J]. FRONTIERS IN ENVIRONMENTAL SCIENCE,2022,10.

Wang, Lizhi.,Du, Wei.,Shen, Huizhong.,Chen, Yuanchen.,Zhu, Xi.,...&Tao, Shu.(2022).Unexpected Methane Emissions From Old Small Fishing Vessels in China.FRONTIERS IN ENVIRONMENTAL SCIENCE,10.

Wang, Lizhi,et al."Unexpected Methane Emissions From Old Small Fishing Vessels in China".FRONTIERS IN ENVIRONMENTAL SCIENCE 10(2022).