Home > Research Information > Particulate Matter > The Seasonal Particulate Matter Management System
The Seasonal PM Management System refers to enforcement of stricter reduction and management policies for PM from December to next March, a period that generally records higher PM concentrations than usual.
Korea is mostly frequented highly-concentrated PM from December to next March. Annual mean concentrations of PM2.5 are 29 ㎍/㎥ (2017 - 2019). While the mean concentrations of PM2.5 from April to November are 20 ㎍/㎥, the mean concentrations of PM2.5 from December to next March (when the Seasonal PM Management System is underway) are about 45% higher.
In response, the government introduced the Seasonal PM Management System that includes stricter reduction and management policies for PM from December to mitigate the frequency and intensity of higher-concentrated PM emissions in order to protect public health.
Stricter measures during the period of the Seasonal PM Management System consist of continuous monitoring measures and emergency reduction measures at high PM levels.
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Continuous monitoring measures (The Seasonal PM Management System) |
Corresponding measures at high PM levels (PM Emergency Reduction Measures) | ||
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Level 1 (Blue) | Level 2 (Yellow) | Level 3 (Orange/Red) | ||
Transport |
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* Penalties for Non-compliance ※ Not to be in place under COVID-19 alert level of “Red” |
* Temporary Commuter Shuttles Available ※ Not available under COVID-19 alert level of “Red” |
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Energy |
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Industry |
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Everyday activities |
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Public health protection |
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