A total of 217032 tests on air particulate, terrestrial waters, sediment, aquatic species, effluent and sewage were conducted in 1997 for pollution monitoring.

• 年内，化验所在环境监察方面对空气、海洋、河流、沉淀物、水生生物以至废料及污水等样本进行的化验共有217032次。