预计到1999年大气污染防治法的规定比现在还要严，所以日本各石油公司都在率先生产控制含致癌物质苯不到1％的低公害汽油。出光兴产石油公司目前已经全部转换为生产低公害的汽油。加快低含苯汽油的生产@张济宇 It is estimated that the provisions of the Law on Prevention and Control of Atmospheric Pollution by 1999 will be more stringent than that now, so all Japanese oil companies are taking the lead in controlling low-pollution gasoline containing less than 1% benzene, which contains carcinogens. Idemitsu Kosan oil company has now been converted to produce low-pollution gasoline. Accelerate the production of low benzene gasoline @ Zhang Jiyu