Paris resident Virginie, who has three children, says she is worried for her family's health due to the high levels of pollution.
"Certain days when it's really strong, we feel it. I have three children who are in strollers, and yeah it's true, it's hard to take them out in their strollers, when you feel that it's heavy and you have trouble breathing. For the kids, it's true that it's hard," she said.
So far this year, there have been 12 days where the pollution index has hit between 75 and 100, according to Airparif.
Guirassy, who has lived in Paris all his life, says that pollution is something Parisians just have to deal with.
"I see that there are a lot of cars, I see a bit of smoke from each car, but after that in my day-to-day life, I'm from Paris, so we've been living with pollution forever. Maybe years later, if I catch some weird disease because of pollution, I'll feel it. But for the time being, I'm good," Guirassy said.
Under the leadership of Socialist mayor Anne Hidalgo, the city of Paris has taken many anti-pollution measures, including plans to create pedestrian-only neighbourhoods in the city centre and ban diesel cars by 2020.
On March 23, a few days after the city's highest pollution index of the year, Hidalgo banned half of all vehicles from circulating in the city, a measure that Airparif researchers said reduced particle pollution by 6 percent in 2014.