Abstract
Anthropogenic emissions of nitrogen oxides (NOx) and carbon dioxide (CO2) in China were investigated to establish an emission inventory of air pollutants in East Asia. The total amounts of the emissions were classified by energy demand sectors, provinces, major cities, and two grid systems such as 80×80 km square and 1°×1°resolution.
Distinctive features of this work were determination of appropriate emission factors by carefully reviewing previous studies in Europe, U. S. A. and Japan, and taking combustion condition, type and size of furnace in China into account.
Based upon these emission factors, the total amounts of 6.7Tg of NOx and 2543Tg of CO2 were estimated to be emitted in China in 1990. In the category of fuel, “coal combustion” and in the category of energy demand sector, “power and heat generation” were the largest source of thermal comsumption and air pollutants emission respectively. Large amounts of air pollutants were discharged from coastal regions facing the Yellow sea and Bo hai, reflecting ecomomical growth and urbanization.
