A jogger passes the hazy skyline of Singapore June 19, 2013. REUTERS/Edgar Su
SINGAPORE (Reuters) - Singapore's air pollution level rose to "very unhealthy" levels late on Wednesday, with the main pollution index hitting the highest on record, as smoke from Indonesian forest fires enveloped the city-state.
The Pollution Standards Index (PSI) soared to 290 at 9:00 p.m. local time (2:00 p.m. British time), up from 190 just an hour earlier. A PSI reading above 300 indicates "hazardous" air quality and 201-300 means "very unhealthy".
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