Hong Kong's air pollution hit the highest level, posing "serious health risks", the governent has warned.
The Environmental Protection Department reported that the pollution was mainly caused by smog and ozone as a result of the hot weather, while super typhoon Nepartak churned its way into southern China after battering Taiwan.
The department said the condition would linger until there are showers early next week.
Almost all 16 general and roadside air pollution monitoring stations have recorded the highest possible reading on the air quality health index.
The stations that did not hit the peak level showed a level just below that, indicating "very high health risks".
The department urged people to spend less time outdoors. -RTHK