Sydney was caught in the fumes released by burns carried out on the outskirts of Australia’s largest city on Monday, forcing the authorities to reduce these burns and recommend residents to stay at home. “A weak wind and a (thermal) inversion during the night caused residual smoke in the lower part of the city”, announced the firefighters.
Ferry rotations were also canceled, as the level of air pollution increased significantly. This was more than 190, depending on the level of pollution to fine particles PM2.5 (less than 2.5 micrometers).
Australian firefighters use the slash-and-burn technique to clear forest floors in an attempt to prevent fires. But this Monday, faced with the level of pollution, they had to revise their plans downwards.
During the forest fires that ravaged the Sydney region for months in 2019 and 2020, the city’s estimated five million inhabitants were enveloped for several weeks by a cloud of smoke and ash. The current episode should subside in a few days, according to firefighters.