东亚地区CFC-11和CFC-12排放情况研究进展

Research progresses on CFC-11 and CFC-12 emissions in East Asia

针对国际社会对区域尺度氯氟烃(Chlorofluorocarbons)排放的争议,分析了中国工业生产中最主要的CFC-11和CFC-12气体,论述了中国重点地区CFCs研究进展,探讨了CFCs的赋存情况,总结了中国政府淘汰CFCs的进程。分析认为:CFC-11和CFC-12的大气浓度下降速率分别在2011年和2016年前后放缓,甚至出现浓度反常增加的情况;东亚地区的淘汰进程落后于世界平均水平,下降速率波动较大;自2000年以后,中国的CFCs下降速率一直领先于东亚其他国家,但在2015年以后大幅变缓甚至出现了浓度反弹。中国的CFCs淘汰历程虽然进入中后期,但仍需严格监管;大气环境污染的影响因素很多,应结合各国的发展现状和治理力度进行综合评价。

Facing the international controversy about the regional scale emission of Chlorofluorocarbons(CFCs),the main gases,CFC-11 and CFC-12,caused by industrial production in China were analyzed.The research progresses on CFCs in key areas of China and the occurrence of CFCs were discussed.The progress of CFCs elimination by the Chinese government was summarized.The analysis showed that around 2011 and 2016,the decline of CFC-11 and CFC-12 concentrations in atmosphere slowed down.Their concentrations even increased abnormally.The elimination progresses in East Asia lagged behind the world’s average,and its decline rate fluctuated greatly.Since 2000,the decline rate of CFCs in China had been ahead of other countries in East Asia.However,after 2015,the decline rate in China slowed down significantly,and the concentration even increased.Although the elimination process of CFCs in China has entered the middle and late stage,strict supervision is still required.There are many influencing factors of atmospheric environmental pollution,which should be comprehensively evaluated in combination with the development status and governance efforts of each country.