MEIC team published China’s emission inventories in 2019 and 2020 to assess the impact of COVID-19 on China’s emissions

The COVID-19 lockdown has reduced China’s anthropogenic emissions substantially between January and March in 2020, with the largest reductions in February. Emissions of SO2, NOx, CO, NMVOCs, and primary PM2.5 were estimated to have decreased by 27%, 36%, 28%, 31%, and 24%, respectively, in February 2020 compared to the same month in 2019.

Bo Zheng

Emission Information – Shipping

Overview > The shipping emission inventory in East Asia is established based on the Shipping emission inventory model (SEIM) developed by Tsinghua University. The model is developed based on the data from high-precision ship Automatic Identification System (AIS). The underlying database contains about 30 billion AIS signals each year, covering global international fleet activity information.…

Emission Information – NH3

Overview > The PKU-NH3 inventory, led by Peking University (Yu Song), provides gridded ammonia emissions at 0.1° spatial resolution for China during 1980‒2018. This inventory is developed by a bottom-up approach that combines long-term yearly provincial/county-scale statistical data and localized emission factors. The monthly ammonia emissions are categorized into nine sectors: livestock, synthetic fertilizer application,…