What does an API reading of 101 to 200 signify?

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An API reading between 101 and 200 signifies unhealthy air quality.

An Air Pollutant Index (API) reading ranging from 101 to 200 indicates that the air quality is unhealthy. This range was recorded in eight areas across Malaysia as of 9 am on August 12. Specifically, Sarikei in Sarawak registered the highest reading at 161 within this category.
Unhealthy Air Quality Recorded in Sarawak

Six locations in Sarawak reported unhealthy API readings. Sarikei recorded the highest at 161, followed closely by Bintulu and Sri Aman, both at 157. Samalaju recorded a reading of 153, Sibu at 151, and Miri at 130. These figures fall within the 101 to 200 range, classifying the air quality as unhealthy.
Peninsular Malaysia Also Affected

In Peninsular Malaysia, two areas recorded unhealthy API readings. Putrajaya registered an API of 114, and another unstated location also reported a reading above 100, placing it in the unhealthy category. These readings highlight air quality concerns beyond Sarawak.
Moderate and Good Air Quality Elsewhere

In contrast to the unhealthy zones, 51 areas across the nation recorded moderate API readings, falling between 51 and 100. Furthermore, four areas reported good air quality, with API readings below 50. This indicates a varied air quality landscape throughout Malaysia.
API Categories Explained

The Air Pollutant Index categorises air quality into distinct levels. A reading between zero and 50 is considered good, while 51 to 100 is moderate. The range of 101 to 200 signifies unhealthy air, 201 to 300 is very unhealthy, and any reading of 300 and above is classified as hazardous. This system provides hourly updates based on data from 68 monitoring stations nationwide.

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What does an API reading of 101 to 200 signify?

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