At least eight and as many as 15 will have operations suspended from this Sunday until Feb 29.
The remaining plants will reduce output to 80% of capacity over the period. It's expected that the measures would reduce the sector's fine dust production by up to 44%. Earlier this month, South Korea unveiled a set of measures to limit fine dust pollution. Fine dust, which can penetrate deep into the lungs, is a potential cause of respiratory diseases and cancer.
