Public health warning for Hong Kong as Air Quality Health Index reaches ‘serious’ category, the highest pollution level in city
- Avoid or reduce outdoor exercise and spend more time indoors, says environment department
- Top alert level recorded in parts of the city on Wednesday, with children, elderly and those with certain illnesses in built-up areas most at risk
Air pollution reached its highest alert level in parts of Hong Kong on Wednesday after the government warned of a “serious” risk to public health and advised people to avoid outdoor activity.
The Environmental Protection Department released a statement earlier on Wednesday afternoon saying pollutant levels had been rising since the morning, with the Air Quality Health Index expected to reach the worst category at some monitoring stations.
Later in the afternoon, two official sites in the New Territories recorded the risk to public health as “serious”, which is at the top of the five-tier scale.
“Under the influence of the outer subsiding air of tropical cyclone Danas, the weather in Hong Kong today is hazy with sunny periods and light wind,” the statement said.
“Hong Kong is being affected by an air mass with higher background pollutant concentrations. Higher than normal levels of ozone and particulates have been recorded in the territory since noon.”
It added high levels of ozone promoted the formation of nitrogen dioxide, particularly in urban areas and at the roadside.
