Pollution in nearly 80 per cent of Chinese cities surveyed by Greenpeace "greatly exceeded" national standards over the first nine months of this year, the advocacy group says.

The average level of PM2.5 particulates – small enough to deeply penetrate the lungs – in the 367 cities tested was also more than four times the maximum recommended by the World Health Organisation, Greenpeace said. Nearly 80 per cent of the cities exceeded the national standard on PM2.5, which…