September 24, 2022

By evacuating transit visitors from town middle, Megapolis reduces the extent of air pollution there. However they’re prone to enhance elsewhere whereas they look forward to an alternative choice to the automobile.

2020 and 2021, marked by restrictive measures within the context of the well being disaster, confirmed a major enchancment in air high quality in Montpellier, as elsewhere.

These enhancements have even taken a formidable flip due to Metropolis’ selections. Thus, the sensors of Atmo Occitanie, a corporation that displays and informs about air high quality, recorded traditionally low knowledge for a number of months.

Because of the closure of the Saint-Louis-Gambette Axis, the Chaptal sensor (really positioned in Les Arceaux) recorded a dramatic discount in pollutant emissions related to motorized vehicle visitors. The autumn is much more spectacular for the Saint-Denis sensor. With the closure of the Clemenceau-Anatole-France axis, the tunnel beneath the Comédie, which was one of the vital polluted within the metropolis, the decline has grow to be much more pronounced for the reason that starting of the summer time.

Soiled axes are prone to be much more

On the following map revealed by Atmo Occitanie, crimson, synonymous with air pollution, will disappear, for instance with Cours Gambetta. However different axes might change coloration from yellow to crimson. This is applicable to the boulevards Berthelot, Vuessens, Rabelais and Orient, which, due to the brand new visitors plan, have grow to be crowded with vehicles. This additionally applies to the trail of Mulares.

The excellent news is that the central a part of town will grow to be simpler to breathe. The unhealthy information is that polluted axes are prone to be much more polluted, just like the A 709, avenue de Pré d’Arene, roundabout of the identical title, avenue Pierre-Mendès-France, from avenue de la Liberte. …

These are “high-traffic roads” the place “nitrogen dioxide limits are all the time exceeded,” famous the 2021 Atmo Occitanie. a process.”

The most recent readings from Atmo Occitanie sensors put in in Pompignan (on the intersection of avenue Pierre-Mendes-France) and Pré-d’Arene present no enchancment in air high quality.

ATMO: “The development stays optimistic”

What about air air pollution in Montpellier?

Attributable to lockdowns and varied restrictions, we now have recorded an unprecedented drop in nitrogen dioxide in 2020. Air pollution partially returned in 2021. The identical is going on this 12 months, but it surely seems to be like we’re nonetheless on a optimistic trajectory, under 2019.

What precipitated the change in journey plan?

In Les Arcos and particularly in Saint-Denis, after the closure of the Comédie tunnel, we noticed a lower in air pollution ranges on account of decreased visitors. If we handle to scale back the variety of kilometers traveled within the metropolis, we are going to scale back environmental air pollution. Straightforward to say however tougher to do!

Will air pollution sensors be modified?

Sure, we’re going to substitute these from Saint-Denis and La Pompignan that now not meet European requirements for public publicity. We’re going to set up one, avenue de la Liberte, and we’re in search of two different measurement websites. This requires preliminary analysis. Our report can be despatched to the Ministry of the Surroundings, which is able to inform Europe. Within the meantime, non permanent units will permit air pollution to be measured. We’re working with Métropole to review the influence of the motion plan and forecast it for 2023.

If the metropolis desires to evacuate transit visitors (that’s, motorists who cross town with out stopping), it additionally desires to encourage metropolitan residents to desert their automobile in favor of mass transit or delicate mobility.

However it is going to be mandatory to attend till 2024 and 2025, when the fifth tram line, tram traces and the categorical bike community are put into operation, with the intention to provide an actual various to highway transport, which remains to be within the majority. And after we know that transport is the supply of 95% of greenhouse gases and that it’s the solely sector that’s progressing usually (+11% since 1990), we higher perceive the urgency of decreasing the share of essentially the most polluting substances.

Ozone: air pollution discount

In Montpellier Metropolis, 2018 and 2019 have been marked by ozone air pollution. This gasoline is fashioned on account of chemical transformations of nitrogen oxides and unstable natural compounds, primarily emitted on account of highway visitors and industrial actions. These episodes are theoretically favored by sturdy solar, excessive temperatures, and lightweight winds.

Regardless of these situations, there have been solely two main air pollution incidents in Hérault this summer time, on 17 June and 10 August. No anomalous threshold was noticed for suspended particles within the compartment. “We predict there may be an affiliation with decreased visitors and subsequently decreased chemical reactions induced, however this has but to be demonstrated,” explains Dominique Tilak, director of Atmo Occitanie. .”

Leave a Reply

Your email address will not be published.