Telegraph: Hundreds more people could die because of increasing levels of ozone at street level, according to scientists. A study by the Royal Society found ground levels of ozone, the pollutant caused when sunlight hits a mixture of gases in the air, has risen by six per cent per decade since the 1980s. Although the ozone layer protects the planet at a higher level, at ground level it is damaging to human health. Children, the elderly and asthmatics are particularly vulnerable to …