So concerning. ""Dr Denis Henshaw, Professor of Human Radiation Effects at Bristol University, the scientific adviser for Children with Cancer UK, said air pollution was by far the biggest culprit, accounting for around 40 per cent of the rise, but other elements of modern lifestyles are also to blame.

Among these are obesity, pesticides and solvents inhaled during pregnancy, circadian rhythm disruption through too much bright light at night, radiation from x-rays and CT scans, smoking during and after pregnancy, magnetic fields from power lines, gadgets in homes, and potentially, radiation from mobile phones."