Why is pollution so widespread

Explanation:

It comes as little surprise to learn that the UK is rife with air pollution.

But while people living away from big cities and main roads may think they’re unaffected – it turns out many of them are.

The most comprehensive analysis of the tiny particulate matter in our air finds two thirds of the population living in areas with air pollution levels that the World Health Organisation deems to be unsafe.

that is wrong, its not thymus.

where in your body is there an enzyme that does function at a high or low ph? what is the name of that enzyme and its function?