air pollution, large outdoor banner. 空氣污染, 大型戶外橫額

Hong Kong

Alex Hofford/EPA
Tourists from mainland China take photos in front of a large outdoor banner showing what Hong Kong looks like on a clean air day, on Wednesday. Hong Kong’s air pollution index’ reached ‘very high’ in Central and Western District, Causeway Bay and Mongkok, with ‘very high’ levels of toxic ozone and nitrogen dioxide recorded at roadside monitoring stations
FT Photo Diary | A blog from the Financial Times http://blogs.ft.com/photo-diary/

【outdoor_banner】_有道词典
 户外横额
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