Air pollution from NO2 causes around 23,500 early deaths every year in the UK. In London alone, more than one person an hour dies prematurely from a range of conditions such as asthma, emphysema and congestive heart failure caused by exposure to nitrogen dioxide in the air.

The study followed the same individuals from one year to the next, taking genetic differences and variations in air pollution levels in consideration, too.

But, the researchers stressed that there is no quick fix.

“There is no shortcut to solve this issue,” Chen said. “Governments really need to take concrete measures to reduce air pollution. That may benefit human capital, which is one of the most important driving forces of economic growth.”

However, one way in which people can help reduce air pollution is by actively planting more green spaces. By incorporating more plants in your own home or actively growing vegetables and such in your garden, trying to make the space around you greener is a small but important step.

You can read more here on why the government needs to tackle air pollution levels now.

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This is how rising air pollution is affecting your intelligence