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Share of days in the year with unhealthy air quality (PSI) in Singapore from 2007 to 2022

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Source

Release date

September 2023

Region

Singapore

Survey time period

2007 to 2022

Supplementary notes

PSI includes Sulphur Dioxide (SO2), Particulate Matter (PM10), Particulate Matter (PM2.5), Nitrogen Dioxide (NO2), Carbon Monoxide (CO) and Ozone (O3).

Figures are rounded to the nearest 0.5.

Citation formats

Unhealthy air quality according to share of days Singapore 2007-2022

Published by ÌÇÐÄÆƽâ°æ Research Department, Sep 21, 2023
In 2015, zero percent of the days in the year was recorded to be in the unhealthy range. Air quality in 2013 and 2015 was affected by transboundary smoke haze from land and forest fires. Singapore also experienced a full-year of good and moderate air quality (in terms of PSI) in the years 2007, 2008, 2018 and 2020.
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