From todays SCMP , the main English language daily :
" A blanket of heavy pollution smothered Hong Kong’s biggest business and shopping districts on Wednesday.
Citizens braving the sweltering heat also had to put up with pollution levels categorised as “very high” in Central, Causeway Bay and Mong Kok.
According to the Environmental Protection Department, as of 10am the air quality health index had reached 8 at roadside stations in the two districts, indicating a very high health risk. Roadside stations in Mong Kok and general stations in Tuen Man and Tai Po reported AQHI readings of 7, indicating a high health risk"