论文部分内容阅读
近年来,日本在降低SO_2、NO_x的排放方面所取得的成效显著是与经济增长和电厂用煤的增加有关。SO_2年排放量已从1967年的五百万吨下降到了1985年的一百二十万吨;NO_x排放量亦从1973年的二百万吨下降到1985年的一百三十万吨。日本自1977年开始进口燃煤至1985年已达二千万吨,预计到1990年将剧增到五千万吨。
In recent years, Japan’s achievements in reducing SO 2 and NO x emissions have been significantly linked to economic growth and increased use of coal for power plants. SO2 emissions have dropped from 5 million tons in 1967 to 1.2 million tons in 1985; and NO_x emissions have dropped from 2 million tons in 1973 to 1.3 million tons in 1985. Japan imported coal burning from 1977 to 20 million tons by 1985 and is expected to soar to 50 million tons by 1990.