I just checked and the pm2 levels are as bad as they were when I visited pre Covid (50 μg/m^3). I was there for 3 months, in El Poblado neighborhood and the air

I just checked and the pm2 levels are as bad as they were when I visited pre Covid (50 μg/m^3). I was there for 3 months, in El Poblado neighborhood and the air quality was horrendous, I would never go back. The depression in which the city lays also keeps all the pollution in place for longer.