A boat cruise pass the Pudong financial area, which is shrouded by heavy pollution in Shanghai. Most Chinese cities currently base their air-quality information on particles of 10 micrometres or larger and do not take into account finer particulates that experts say are most harmful to human health
A boat cruise pass the Pudong financial area, which is shrouded by heavy pollution in Shanghai. Most Chinese cities currently base their air-quality information on particles of 10 micrometres or larger and do not take into account finer particulates that experts say are most harmful to human health