Melbourne's air quality has deteriorated to "very poor" as smoke again billows into the city from bushfires raging in the state's east.

East Gippsland was still choking in hazardous smoke pollution on Monday with bushfires continuing to tear through the disaster zone.

Point Ormond in Elwood on Monday morning as smoke haze settled into Melbourne. Credit:Penny Stephens

Bureau of Meteorology forecaster Michael Efron said visibility was down to about 2 to 3 kilometres in Melbourne because of the smoke.

Melburnians have reported being able to smell the smoke from inside their homes and offices.