Weatherwatch: real-time maps of air pollution will soon make it easy to see where danger lies

We cannot see the tiny deadly particles that are killing people - but new digital advances are about to change that, which may spark action

In the days of London smogs it was possible to both see pollution and smell it. Now the deadliest particles are so small that it is hard for human senses to detect them, yet they are killing people just the same.

Health professionals and environmental groups may complain, but the general public seems oblivious to the danger that is damaging the health of children and adults alike in many towns and cities across the country. Perhaps it is our inability to see the cocktail of chemicals and particulates we are breathing in that has allowed successive governments to get away with doing so little about it for so long.