According to statistics of the Environmental Protection Department, more than ninety percent of the air pollution in Taipei City is created by vehicles. Only the remainder is by factories or construction sites. At present, the most urgent thing is how to make the exhaust fumes from cars and motorcycles be controlled within a certain standard.
根據環保局的統計，台北市百分之九十以上的空氣汙染，是車輛造成的，剩下的才是工廠、工地；目前最迫切的，是如何讓現有汽、機車的排氣可以控制在一個標準。