This Thursday, the absence of wind favors the accumulation of particles in the air emitted from heating devices in Midi-Pyrénées. This is especially the case in Haute-Garonne, Tarn-et-Garonne and in the Hautes-Pyrénées, at level 4 out of 6.
First episode of winter pollution
Friday, same scenario, the episode of pollution with particles in suspension should continue in the departments of Haute-Garonne and Hautes-Pyrénées with a poor air quality index. It will be bad in Aveyron and Tarn-et-Garonne, and remains degraded in the majority of the other departments because of the levels of particles.
On the Atmo Occitanie scale, there are six levels. It is rare that the index drops to level 5 “very bad” or 6 “extremely bad”.