Yugo Kanaya, director of the Japan Agency for Marine-Earth Science and Technology's Earth Surface Systems Research Center, and research groups such as Kobe University, National Institute for Environmental Studies, and National Institute of Polar Research are the main sources of black carbon (BC) emitted from China. Revealed that is at home.
According to the Japan Agency for Marine-Earth Science and Technology, black carbon is a global warming contributor, also known as soot, and has been carried by the wind from China to Japan for many years.In China, a lockdown policy was rolled out nationwide in February-March 2020 to curb the spread of the new coronavirus, and the activities of factories and logistics departments were curtailed.
By comparing the amount of black carbon that reached Fukue Island in Nagasaki Prefecture with the previous year, the research group explored where the main sources are in China.
As a result, it was found that the amount of black carbon was not much different from the previous year when the lockdown policy was developed in China.During the lockdown, the activities of factories and logistics departments were restrained, but home heating and cooking are still being used.For this reason, the research group determined that the main source was home.
Coal-based appliances are used in home heating and cooking in China.The research group believes that switching to gas-based equipment will help reduce the generation of black carbon and help prevent global warming.
