Key points from article :
Interactive map produced by the World Health Organisation (WHO).
Vast areas of the world are bathed in tiny particles from pollutants such as sulphate, nitrates and black carbon.
These PM2.5 and PM10 particles can cause heart attacks, strokes and lung cancer.
In England, only the rural north-west and parts of Cornwall and Devon are below WHO safety limit.
ClientEarth is using the courts to force governments to uphold people’s right to clean air.
COMMENT: its surprising that there isn’t a big orange patch over London
