A health warning over the high levels of smoke in the air over south-east Queensland in the region has been withdrawn.

The air quality has been considered dangerous to health since Monday, after large amounts of smoke caused a noticeable haze in many areas of Brisbane, Ipswich and the Sunshine coast.

Brisbane and large parts of southeast Queensland have been covered with smoke haze for several days as a result of the bushfire crisis. Credit:AAP Image/Dan Peled

However, after worsening again on Wednesday, the overall air quality improved enough for Chief Health Officer Jeannette Young to withdraw the whole-of-community alert.

“We saw two days of widespread, smoke-affected, very poor quality air levels,” Dr Young said.