Summary | Slow wind is also to blame for the situation, they
said. It is expected to improve slightly after Sunday. It was
the second time in eight days that the city had sounded an
alert. Shanghai's environment watchdog first issued a "heavy
pollution" warning last Friday. The index reached 206 around
noon and continued to rise. PM2.5 was the main pollutant, three ...
said. It is expected to improve slightly after Sunday. It was
the second time in eight days that the city had sounded an
alert. Shanghai's environment watchdog first issued a "heavy
pollution" warning last Friday. The index reached 206 around
noon and continued to rise. PM2.5 was the main pollutant, three ...
en.ce.cn | 08 December 2014