
AI-generated summary
If the concentration of ozone in the air exceeds a certain level, an ozone warning is issued to protect public health.
(Suwon = Yonhap News) As of 4 p.m. on the 12th, an ozone warning was issued for 11 cities in the central Gyeonggi region, the Korea Environment Corporation of the Ministry of Environment reported.
The regions in question are Suwon, Ansan, Anyang, Bucheon, Siheung, Gwangmyeong, Gunpo, Uiwang, Gwacheon, Hwaseong, and Osan.
The average ozone concentration in the area where the notice was issued is 0.1288 ppm (1 part per million) as of 4 p.m.
If the 1-hour average concentration of ozone (O₃) in the air is more than 0.12 ppm, an ozone warning is issued, if it is more than 0.30 ppm, an ozone warning is issued, and if it is more than 0.50 ppm, an ozone serious warning is issued.
When an ozone warning is issued, the elderly, children, and people with respiratory or heart diseases should refrain from outdoor activities. It is also recommended for the general public not to engage in outdoor activities or engage in strenuous exercise.

The Ministry of Oceans and Fisheries announced that it dispatched a government delegation to the 48th London Convention and 21st London Protocol Conference of the Parties held in London, England from the 5th to the 9th. The delegation emphasized the importance of safe management of contaminated water from nuclear power plants and provision of transparent information in discussions on radioactive waste management, introduced the results of the Korea Institute of Ocean Science and Technology's London Protocol Master's Program in Management Engineering, and promoted efforts to strengthen the capacity of developing countries.
![[Tomorrow’s weather] Rain all over the country… After it stops, it gets chilly by 5 to 10 degrees.](/api/img?u=https%3A%2F%2Fimg.yna.co.kr%2Fphoto%2Fyna%2FYH%2F2026%2F10%2F06%2FPYH2026100608910001300_P2.jpg&w=320&q=72&f=webp)
On Tuesday the 13th, it will be mostly cloudy across the country and rain will fall in most areas. Precipitation is expected to be 5 to 40 mm in Seoul, Incheon and Gyeonggi Province, and 20 to 70 mm in the mountains of Jeju Island and the southern midlands. After the rain stops, the temperature will drop, and the morning temperature is expected to drop sharply by 5 to 10 degrees from the day after tomorrow.

Starting in Jeju and Jeonnam on the 12th, the rain will spread across the country at night and continue until the day of the 13th. After the rain, cold air from the northwest will move south, lowering temperatures. Temperatures will be higher than usual until the morning of the 13th, but are expected to drop sharply from noon on the 13th.

On the 12th, Jeonbuk was forecast to be cloudy at times and rain starting at night. The lowest temperature is 20 degrees in Jeonju, and the highest temperature during the day is expected to be 27 to 29 degrees, which is higher than average. From late night to the 13th, 5 to 30 mm of rain was forecast, and showers were also forecast in some parts of the northeast.

On the 12th, Jeju is cloudy and rainy occasionally, and the rain is expected to continue until the morning of the 13th. The expected precipitation is 20 to 70 mm in mountainous and southern mid-mountainous areas and 5 to 40 mm in other areas, and the highest daytime temperature will be 25 to 26 degrees, which is higher than normal. Fine dust will be at a 'good' level, and sea waves are expected to be 0.5 to 1.5 m.

On Monday the 12th, there will be a lot of clouds in Daejeon, Sejong, and South Chungcheong regions, and 5 to 10 mm of showers are expected to fall starting in the afternoon, mainly in Daejeon and the eastern part of South Chungcheong Province. Rain is expected to begin in most areas of South Chungcheong Province late at night and stop during the day on the 13th, with the expected rainfall amount being 5 to 30 mm. After the rain stops, cold air from the northwest will move south, lowering temperatures and making it chilly.