Unexpected Methane Emissions From Old Small Fishing Vessels in China
Copyright policy )Unexpected Methane Emissions From Old Small Fishing Vessels in China
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.
- Zhejiang University of Science and Technology China (People's Republic of)
- Peking University China (People's Republic of)
- Peking University China (People's Republic of)
- Peking University China (People's Republic of)
- Zhejiang University of Technology China (People's Republic of)
emission factor, Atmospheric Science, Emission inventory, FOS: Mechanical engineering, Organic chemistry, methane emission, Estimating Vehicle Fuel Consumption and Emissions, Fuel oil, Environmental protection, Engineering, Atmospheric Aerosols and their Impacts, GE1-350, old small fishing vessel, Vehicle Emissions, Methane emissions, Ecology, Geography, Fuel Consumption, Earth and Planetary Sciences, Chemistry, climate change, Petroleum, Archaeology, Emissions, Physical Sciences, Methane, Emission Factors, China, Environmental Engineering, Fraction (chemistry), Air pollution, Environmental engineering, Emission Modeling, Environmental science, Liquefied natural gas, Waste management, Biology, FOS: Environmental engineering, Natural gas, Environmental sciences, Environmental Impact of Maritime Transportation Emissions, Fishery, FOS: Biological sciences, Environmental Science, Automotive Engineering, Fishing, Diesel fuel
emission factor, Atmospheric Science, Emission inventory, FOS: Mechanical engineering, Organic chemistry, methane emission, Estimating Vehicle Fuel Consumption and Emissions, Fuel oil, Environmental protection, Engineering, Atmospheric Aerosols and their Impacts, GE1-350, old small fishing vessel, Vehicle Emissions, Methane emissions, Ecology, Geography, Fuel Consumption, Earth and Planetary Sciences, Chemistry, climate change, Petroleum, Archaeology, Emissions, Physical Sciences, Methane, Emission Factors, China, Environmental Engineering, Fraction (chemistry), Air pollution, Environmental engineering, Emission Modeling, Environmental science, Liquefied natural gas, Waste management, Biology, FOS: Environmental engineering, Natural gas, Environmental sciences, Environmental Impact of Maritime Transportation Emissions, Fishery, FOS: Biological sciences, Environmental Science, Automotive Engineering, Fishing, Diesel fuel
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