An ozone warning affecting five cities in southern Gyeonggi Province, South Korea, was lifted at 9 PM on November 4th, according to the Ministry of Environment and the Korea Environment Corporation. The warning had been in place due to high ozone concentrations. This means air quality has improved in those southern areas. However, the ozone warning remains in effect for regions in northern Gyeonggi Province. Officials continue to monitor air quality levels across the province. Residents in northern areas are still advised to take precautions to protect their health from ozone exposure. Further updates on air quality will be provided as they become available.