Hong Kong Air Pollution Rises to Severe Levels as Government Warns Elderly to Stay Indoors

Hong Kong has seen severe smog over the past two days, with the government warning of serious health risks and experts calling on the elderly and vulnerable people to stay indoors until sunset. Air quality health risk levels at some roadside monitoring stations rose on Wednesday and Thursday, and experts said this was linked to sunlight and high temperatures pushing up ozone levels, expecting the situation may last for several days.