Hebei
Smoggy Hebei offers hope China can win war on air pollution
ANALYSIS: Air pollution levels in Hebei have fallen 28.7% between 2013 and 2015, making it one of China’s four fastest improving provinces – but problems persist
ANALYSIS: Air pollution levels in Hebei have fallen 28.7% between 2013 and 2015, making it one of China’s four fastest improving provinces – but problems persist