Summary | Tongchuan city in Shaanxi province, which used to
suffer from serious air pollution due to its heavy coal and
cement production, got 269 blue sky days in 2015, thanks to the
continuous effort of environmental improvement and protection.
suffer from serious air pollution due to its heavy coal and
cement production, got 269 blue sky days in 2015, thanks to the
continuous effort of environmental improvement and protection.
chinadaily.com.cn | 29 January 2016