The air quality will be bad this Thursday.
But not enough to renew the differentiated circulation.
The Paris police headquarters therefore decided to lift the device on Thursday morning.
Since 5:30 a.m. on Wednesday, only vehicles with a Crit'Air 0, 1 or 2 sticker could circulate within an interior perimeter of the A86, due to a peak in pollution.
Airparif does not plan to exceed the limit thresholds.
Indeed, "the meteorological conditions will disperse the pollution accumulated in recent days", details the association for monitoring air quality in Ile-de-France.
"There will also be less dust from the Sahara", specifies Karine Léger, the general manager.
#Pollution |
End of the PM10 fine particle pollution episode.
The restrictive traffic measures, below, will therefore be lifted from midnight this evening.
https://t.co/fsKy6D5mLW
- Police Prefecture (@prefpolice) March 3, 2021
“Particulate matter levels should however remain high in the region.
The air quality will on the whole be degraded to poor due to the concentrations of PM2.5 particles ”, continues Airparif.
The levels will be between 25 - 35 µg / m3 of air for fine particles (diameter less than 2.5 µm) (PM2.5) and between 40 - 50 µg / m3 for the largest (diameter less than 10 µm) ) (PM10).
By way of comparison, the first stage of pollution alert is triggered from 50 µg / m3 of air.
“This episode was however particular, because the sources of pollution were mixed, further details Karine Léger.
There is still a lot of traffic, despite the telecommuting.
People refer to their cars rather than transport.
But to this were added the weather conditions - little wind, dust from the Sahara - as well as the first agricultural spraying which took place due to the mild weather.
"
Next week should experience high pressure again, "but it is too early to know if it will be accompanied by an episode of pollution", specifies Airparif.
