The Paris public transport authority launches a three-day discounted ticket in response to high ozone pollution.

Paris – May 28, 2026: the Île-de-France region is currently experiencing high ozone pollution, worsened by persistent temperatures. To reduce pressure on the environment and encourage more ecological travel, Île-de-France Mobilités has taken temporary measures. From Thursday to Saturday, a special anti-pollution daily ticket will be offered at a single price of €5.10 per day. This measure aims to facilitate the use of buses, trains and metros and to reduce the use of private vehicles.

In recent days, ozone concentrations in the air have reached peaks, particularly in the Paris urban area, which can pose a health risk for residents. Experts indicate that ozone acts more during hot weather and can cause respiratory conditions and other health problems. Children, the elderly and people with respiratory conditions are particularly vulnerable.

The transport federation hopes that by offering reduced-price anti-pollution tickets, it will encourage more commuters and residents to give up driving and use public transport, thereby reducing polluting emissions in the region and contributing to environmental protection. This measure applies to all public transport in Greater Paris.

At the same time, health services recommend avoiding physical exertion outdoors in very hot weather and staying as much as possible in the shade or in air-conditioned places. Seventeen departments in the region remain on high alert due to the heatwave and air pollution. An improvement is expected on Friday and the alerts should be lifted progressively.

Île-de-France Mobilités, in connection with environmental and health services, is committed to protecting public health while promoting environmental awareness. In the past, the transport federation has already implemented similar measures during episodes of increased pollutant concentrations to improve air quality. This reduced-price ticket also aims to promote sustainable travel in the region.

In addition to reducing transport-related emissions, authorities advise residents to visit public green spaces more often and to stay sufficiently hydrated to mitigate the effects of the heatwave. Authorities call on the population to follow instructions and act responsibly. The pollution situation will be closely monitored and additional protective measures will be taken if necessary.

Overall, the launch of this anti-pollution ticket illustrates how transport policy and regional environmental policy can cooperate to face the challenges of climate change and air pollution. Residents of Île-de-France are encouraged to take advantage of this opportunity to shift their travel habits toward more sustainable choices in the short term.