Abstract: | This paper reports on a study of the views of 1304 international travellers about their perception of air quality in Hong Kong. Findings indicated that the respondents generally did not perceive the air quality in Hong Kong as a concern when they chose to travel; they had a neutral view of this issue. However, after their visit they considered Hong Kong's air quality in both indoor and outdoor environments as worse than in their home countries. Many visitors were willing to pay an additional departure tax to fund improvements. The findings of this study have implications for decision-makers in formulating more sustainable planning policies to deal with this important environmental issue. |