POSTED: 07 Mar 2014 19:59
Singapore's air quality worsened on Friday, with the Pollutant Standards Index (PSI) crossing into the moderate range.
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Singapore's air quality worsened on Friday, with the Pollutant Standards Index (PSI) crossing into the moderate range.
SINGAPORE: Singapore's air quality worsened on Friday, with the Pollutant Standards Index (PSI) crossing into the moderate range.
The three-hour PSI reading was 54 at 6pm and 64 at 7pm.
As at 7pm, the 24-hour reading was still in the 'good' range - at between 41 and 49.
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