For us we can interpret this sentence in two directions :
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We make it mandatory to limit pollution because of car routes
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We make it mandatory to limit the exposure of people to the pollution
For us in both cases, problems appear :
In the first case we find it strange because many people go to their jobs using other means of transport than a car. They would be stuck at home because there would be too much pollution from industries or cars?
In the second case we find it also strange because many jobs are not suitable for teleworking, most of the time in more strenuous manual work. These people will therefore have to go to work in polluted places, while office workers will stay in their homes without pollution, knowing that these unqualified workers are already very often the most exposed to pollution in society.