Fog in Riau is no smog:

A thick blanket of fog that covered Pekanbaru, Riau, on Wednesday morning, was not smog or smoke from forest fires, according to a local weather agency.

The fog resulted from water vapor that was concentrated in the air because of cool temperature the night before, says the Pekanbaru Meteorology, Climatology and Geophysics Agency.

“It’s not smog, but fog. The air temperature was 21.5 degrees Celsius last night, which was quite cold for Pekanbaru, and there was pouring rain on Tuesday afternoon,” agency analyst Ardhitama said as quoted by kompas.com.

“As a result, the fog became so thick this morning that the range of visibility was only 100 meters at 8 a.m.,” he added.

Ardhitama said that although Riau was still in the rainy season, which would last until April, temperatures over the past several days were higher than normal due to a regional weather disturbance.

He said fog was expected to disappear later in the day. (mtq)

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