A check with the Department of Environment's API website showed that the Miri station recorded an API level of 391 as of 2pm on Saturday (Aug 10).
It had been logging a steady "very unhealthy" readings from 2am.
SK Kuala Baram 2 in Sarawak had a "unhealthy" API level of 135. It had a steady "unhealthy" API reading since 6am.
Meanwhile Johan Setia, Klang in Selangor recorded an "unhealthy" API level of 117. It has been in the "unhealthy" zone since 9pm on Friday (Aug 9).
Other places nationwide had "moderate" API levels.
An API reading of between 0 and 50 is good while 51 to 100 is moderate, 101 to 200 is unhealthy, 201 to 300 very unhealthy, and 301 and above deemed hazardous.
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