Environment and pollution in Taiwan

With its high population density and many factories, some areas in Taiwan suffer from heavy pollution. Most notable are the southern suburbs of Taipei and the western stretch from Tainan to Lin Yuan, south of Kaohsiung. In the past, Taipei suffered from extensive vehicle and factory air pollution, but with mandatory use of unleaded petrol and the establishment of the Environmental Protection Agency, the air quality of Taiwan has improved dramatically. Motor scooters, especially older or cheaper two-stroke versions, which are ubiquitous in Taiwan, also contribute disproportionately to urban air pollution.