School Days and Life?

We didn't have to concern ourselves about the issue in my days (we probably would have been in blissful ignorance, anyway) but recent studies have shown that the levels of harmful particulates are actually higher in London class-rooms than they are outside in the 'fresh air' (https://www.theguardian.com/environment/2018/may/24/air-pollution-worse-inside-london-classrooms-than-outside-study-finds). These are largely generated by traffic from diesel burning cars in the vicinity (although brakes and tyres also produce these items). It is remarkable that not more than been done to reduce exposure to these health-threatening (along with nitrous oxides), especially in developing children who can be very susceptible to environmental contaminants. This appears to be in spite of warnings about the illegality of current levels of air pollution. One possibility is to fit class-rooms with air filtration systems.