Haze looms over Singapore's city center, Sept. 28, 2015. The three-hour Pollutants Standard Index (PSI) of Singapore hit 261 at 6 p.m. local time on Monday and reached the "very unhealthy" level. (Xinhua/Then Chih Wey)
Haze looms over Singapore's city center
English.news.cn
2015-09-28 20:16:16
[Editor: xuxin]
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