https://www.sciencealert.com/sydney-air-soars-to-12-times-hazardous-levels-under-toxic-blanket-of-bushfire-smoke https://www.sciencealert.com/sydney-air-soars-t

https://www.sciencealert.com/sydney-air-soars-to-12-times-hazardous-levels-under-toxic-blanket-of-bushfire-smoke https://www.sciencealert.com/sydney-air-soars-to-12-times-ha... 2,552 here last bushfire season... :-/