SmogRank / South Korea / Jeju-do
Air quality in Ponggae-dong
Jeju-do, South Korea. Over the last 24 hours its air rated Good, the 697th most polluted of 1,341 cities measured.
24-hour average 38US AQI
Good PM2.5 6.9 µg/m³, 0.5× the WHO 24-hour guideline. The figure the 24-hour ranking uses.
Latest hour: 55 US AQI (11.0 µg/m³), 10:00 local time
About usual for early October (7.5 µg/m³).
Where Ponggae-dong ranks 24 hours #697 of 1,341, at 38 US AQI (6.9 µg/m³)
7 days – not enough data
30 days – not enough data
This year – not enough data
The last 12 months, day by day
1 10 20 31 Nov 2025 Dec Jan 2026 Feb Mar Apr May Jun Jul Aug Sep Oct 2025-11-01: no daily value, under 18 hours of readings, or readings that failed our checks 2025-11-02: no daily value, under 18 hours of readings, or readings that failed our checks 2025-11-03: no daily value, under 18 hours of readings, or readings that failed our checks 2025-11-04: no daily value, under 18 hours of readings, or readings that failed our checks 2025-11-05: no daily value, under 18 hours of readings, or readings that failed our checks 2025-11-06: no daily value, under 18 hours of readings, or readings that failed our checks 2025-11-07: no daily value, under 18 hours of readings, or readings that failed our checks 2025-11-08: no daily value, under 18 hours of readings, or readings that failed our checks 2025-11-09: no daily value, under 18 hours of readings, or readings that failed our checks 2025-11-10: no daily value, under 18 hours of readings, or readings that failed our checks 2025-11-11: no daily value, under 18 hours of readings, or readings that failed our checks 2025-11-12: no daily value, under 18 hours of readings, or readings that failed our checks 2025-11-13: no daily value, under 18 hours of readings, or readings that failed our checks 2025-11-14: no daily value, under 18 hours of readings, or readings that failed our checks 2025-11-15: no daily value, under 18 hours of readings, or readings that failed our checks 2025-11-16: no daily value, under 18 hours of readings, or readings that failed our checks 2025-11-17: no daily value, under 18 hours of readings, or readings that failed our checks 2025-11-18: no daily value, under 18 hours of readings, or readings that failed our checks 2025-11-19: no daily value, under 18 hours of readings, or readings that failed our checks 2025-11-20: no daily value, under 18 hours of readings, or readings that failed our checks 2025-11-21: no daily value, under 18 hours of readings, or readings that failed our checks 2025-11-22: no daily value, under 18 hours of readings, or readings that failed our checks 2025-11-23: no daily value, under 18 hours of readings, or readings that failed our checks 2025-11-24: no daily value, under 18 hours of readings, or readings that failed our checks 2025-11-25: no daily value, under 18 hours of readings, or readings that failed our checks 2025-11-26: no daily value, under 18 hours of readings, or readings that failed our checks 2025-11-27: no daily value, under 18 hours of readings, or readings that failed our checks 2025-11-28: no daily value, under 18 hours of readings, or readings that failed our checks 2025-11-29: no daily value, under 18 hours of readings, or readings that failed our checks 2025-11-30: no daily value, under 18 hours of readings, or readings that failed our checks 2025-12-01: no daily value, under 18 hours of readings, or readings that failed our checks 2025-12-02: no daily value, under 18 hours of readings, or readings that failed our checks 2025-12-03: no daily value, under 18 hours of readings, or readings that failed our checks 2025-12-04: no daily value, under 18 hours of readings, or readings that failed our checks 2025-12-05: no daily value, under 18 hours of readings, or readings that failed our checks 2025-12-06: no daily value, under 18 hours of readings, or readings that failed our checks 2025-12-07: no daily value, under 18 hours of readings, or readings that failed our checks 2025-12-08: no daily value, under 18 hours of readings, or readings that failed our checks 2025-12-09: no daily value, under 18 hours of readings, or readings that failed our checks 2025-12-10: no daily value, under 18 hours of readings, or readings that failed our checks 2025-12-11: no daily value, under 18 hours of readings, or readings that failed our checks 2025-12-12: no daily value, under 18 hours of readings, or readings that failed our checks 2025-12-13: no daily value, under 18 hours of readings, or readings that failed our checks 2025-12-14: no daily value, under 18 hours of readings, or readings that failed our checks 2025-12-15: no daily value, under 18 hours of readings, or readings that failed our checks 2025-12-16: no daily value, under 18 hours of readings, or readings that failed our checks 2025-12-17: no daily value, under 18 hours of readings, or readings that failed our checks 2025-12-18: no daily value, under 18 hours of readings, or readings that failed our checks 2025-12-19: no daily value, under 18 hours of readings, or readings that failed our checks 2025-12-20: no daily value, under 18 hours of readings, or readings that failed our checks 2025-12-21: no daily value, under 18 hours of readings, or readings that failed our checks 2025-12-22: no daily value, under 18 hours of readings, or readings that failed our checks 2025-12-23: no daily value, under 18 hours of readings, or readings that failed our checks 2025-12-24: no daily value, under 18 hours of readings, or readings that failed our checks 2025-12-25: no daily value, under 18 hours of readings, or readings that failed our checks 2025-12-26: no daily value, under 18 hours of readings, or readings that failed our checks 2025-12-27: no daily value, under 18 hours of readings, or readings that failed our checks 2025-12-28: no daily value, under 18 hours of readings, or readings that failed our checks 2025-12-29: no daily value, under 18 hours of readings, or readings that failed our checks 2025-12-30: no daily value, under 18 hours of readings, or readings that failed our checks 2025-12-31: no daily value, under 18 hours of readings, or readings that failed our checks 2026-01-01: no daily value, under 18 hours of readings, or readings that failed our checks 2026-01-02: no daily value, under 18 hours of readings, or readings that failed our checks 2026-01-03: no daily value, under 18 hours of readings, or readings that failed our checks 2026-01-04: no daily value, under 18 hours of readings, or readings that failed our checks 2026-01-05: no daily value, under 18 hours of readings, or readings that failed our checks 2026-01-06: no daily value, under 18 hours of readings, or readings that failed our checks 2026-01-07: no daily value, under 18 hours of readings, or readings that failed our checks 2026-01-08: no daily value, under 18 hours of readings, or readings that failed our checks 2026-01-09: no daily value, under 18 hours of readings, or readings that failed our checks 2026-01-10: no daily value, under 18 hours of readings, or readings that failed our checks 2026-01-11: no daily value, under 18 hours of readings, or readings that failed our checks 2026-01-12: no daily value, under 18 hours of readings, or readings that failed our checks 2026-01-13: no daily value, under 18 hours of readings, or readings that failed our checks 2026-01-14: no daily value, under 18 hours of readings, or readings that failed our checks 2026-01-15: no daily value, under 18 hours of readings, or readings that failed our checks 2026-01-16: no daily value, under 18 hours of readings, or readings that failed our checks 2026-01-17: no daily value, under 18 hours of readings, or readings that failed our checks 2026-01-18: no daily value, under 18 hours of readings, or readings that failed our checks 2026-01-19: no daily value, under 18 hours of readings, or readings that failed our checks 2026-01-20: no daily value, under 18 hours of readings, or readings that failed our checks 2026-01-21: no daily value, under 18 hours of readings, or readings that failed our checks 2026-01-22: no daily value, under 18 hours of readings, or readings that failed our checks 2026-01-23: no daily value, under 18 hours of readings, or readings that failed our checks 2026-01-24: no daily value, under 18 hours of readings, or readings that failed our checks 2026-01-25: no daily value, under 18 hours of readings, or readings that failed our checks 2026-01-26: no daily value, under 18 hours of readings, or readings that failed our checks 2026-01-27: no daily value, under 18 hours of readings, or readings that failed our checks 2026-01-28: no daily value, under 18 hours of readings, or readings that failed our checks 2026-01-29: no daily value, under 18 hours of readings, or readings that failed our checks 2026-01-30: no daily value, under 18 hours of readings, or readings that failed our checks 2026-01-31: no daily value, under 18 hours of readings, or readings that failed our checks 2026-02-01: no daily value, under 18 hours of readings, or readings that failed our checks 2026-02-02: no daily value, under 18 hours of readings, or readings that failed our checks 2026-02-03: no daily value, under 18 hours of readings, or readings that failed our checks 2026-02-04: no daily value, under 18 hours of readings, or readings that failed our checks 2026-02-05: no daily value, under 18 hours of readings, or readings that failed our checks 2026-02-06: no daily value, under 18 hours of readings, or readings that failed our checks 2026-02-07: no daily value, under 18 hours of readings, or readings that failed our checks 2026-02-08: no daily value, under 18 hours of readings, or readings that failed our checks 2026-02-09: no daily value, under 18 hours of readings, or readings that failed our checks 2026-02-10: no daily value, under 18 hours of readings, or readings that failed our checks 2026-02-11: no daily value, under 18 hours of readings, or readings that failed our checks 2026-02-12: no daily value, under 18 hours of readings, or readings that failed our checks 2026-02-13: no daily value, under 18 hours of readings, or readings that failed our checks 2026-02-14: no daily value, under 18 hours of readings, or readings that failed our checks 2026-02-15: no daily value, under 18 hours of readings, or readings that failed our checks 2026-02-16: no daily value, under 18 hours of readings, or readings that failed our checks 2026-02-17: no daily value, under 18 hours of readings, or readings that failed our checks 2026-02-18: no daily value, under 18 hours of readings, or readings that failed our checks 2026-02-19: no daily value, under 18 hours of readings, or readings that failed our checks 2026-02-20: no daily value, under 18 hours of readings, or readings that failed our checks 2026-02-21: no daily value, under 18 hours of readings, or readings that failed our checks 2026-02-22: no daily value, under 18 hours of readings, or readings that failed our checks 2026-02-23: no daily value, under 18 hours of readings, or readings that failed our checks 2026-02-24: no daily value, under 18 hours of readings, or readings that failed our checks 2026-02-25: no daily value, under 18 hours of readings, or readings that failed our checks 2026-02-26: no daily value, under 18 hours of readings, or readings that failed our checks 2026-02-27: no daily value, under 18 hours of readings, or readings that failed our checks 2026-02-28: no daily value, under 18 hours of readings, or readings that failed our checks 2026-03-01: no daily value, under 18 hours of readings, or readings that failed our checks 2026-03-02: no daily value, under 18 hours of readings, or readings that failed our checks 2026-03-03: no daily value, under 18 hours of readings, or readings that failed our checks 2026-03-04: no daily value, under 18 hours of readings, or readings that failed our checks 2026-03-05: no daily value, under 18 hours of readings, or readings that failed our checks 2026-03-06: no daily value, under 18 hours of readings, or readings that failed our checks 2026-03-07: no daily value, under 18 hours of readings, or readings that failed our checks 2026-03-08: no daily value, under 18 hours of readings, or readings that failed our checks 2026-03-09: no daily value, under 18 hours of readings, or readings that failed our checks 2026-03-10: no daily value, under 18 hours of readings, or readings that failed our checks 2026-03-11: no daily value, under 18 hours of readings, or readings that failed our checks 2026-03-12: no daily value, under 18 hours of readings, or readings that failed our checks 2026-03-13: no daily value, under 18 hours of readings, or readings that failed our checks 2026-03-14: no daily value, under 18 hours of readings, or readings that failed our checks 2026-03-15: no daily value, under 18 hours of readings, or readings that failed our checks 2026-03-16: no daily value, under 18 hours of readings, or readings that failed our checks 2026-03-17: no daily value, under 18 hours of readings, or readings that failed our checks 2026-03-18: no daily value, under 18 hours of readings, or readings that failed our checks 2026-03-19: no daily value, under 18 hours of readings, or readings that failed our checks 2026-03-20: no daily value, under 18 hours of readings, or readings that failed our checks 2026-03-21: no daily value, under 18 hours of readings, or readings that failed our checks 2026-03-22: no daily value, under 18 hours of readings, or readings that failed our checks 2026-03-23: no daily value, under 18 hours of readings, or readings that failed our checks 2026-03-24: no daily value, under 18 hours of readings, or readings that failed our checks 2026-03-25: no daily value, under 18 hours of readings, or readings that failed our checks 2026-03-26: no daily value, under 18 hours of readings, or readings that failed our checks 2026-03-27: no daily value, under 18 hours of readings, or readings that failed our checks 2026-03-28: no daily value, under 18 hours of readings, or readings that failed our checks 2026-03-29: no daily value, under 18 hours of readings, or readings that failed our checks 2026-03-30: no daily value, under 18 hours of readings, or readings that failed our checks 2026-03-31: no daily value, under 18 hours of readings, or readings that failed our checks 2026-04-01: no daily value, under 18 hours of readings, or readings that failed our checks 2026-04-02: no daily value, under 18 hours of readings, or readings that failed our checks 2026-04-03: no daily value, under 18 hours of readings, or readings that failed our checks 2026-04-04: no daily value, under 18 hours of readings, or readings that failed our checks 2026-04-05: no daily value, under 18 hours of readings, or readings that failed our checks 2026-04-06: no daily value, under 18 hours of readings, or readings that failed our checks 2026-04-07: no daily value, under 18 hours of readings, or readings that failed our checks 2026-04-08: no daily value, under 18 hours of readings, or readings that failed our checks 2026-04-09: no daily value, under 18 hours of readings, or readings that failed our checks 2026-04-10: no daily value, under 18 hours of readings, or readings that failed our checks 2026-04-11: no daily value, under 18 hours of readings, or readings that failed our checks 2026-04-12: no daily value, under 18 hours of readings, or readings that failed our checks 2026-04-13: no daily value, under 18 hours of readings, or readings that failed our checks 2026-04-14: no daily value, under 18 hours of readings, or readings that failed our checks 2026-04-15: no daily value, under 18 hours of readings, or readings that failed our checks 2026-04-16: no daily value, under 18 hours of readings, or readings that failed our checks 2026-04-17: no daily value, under 18 hours of readings, or readings that failed our checks 2026-04-18: no daily value, under 18 hours of readings, or readings that failed our checks 2026-04-19: no daily value, under 18 hours of readings, or readings that failed our checks 2026-04-20: no daily value, under 18 hours of readings, or readings that failed our checks 2026-04-21: no daily value, under 18 hours of readings, or readings that failed our checks 2026-04-22: no daily value, under 18 hours of readings, or readings that failed our checks 2026-04-23: no daily value, under 18 hours of readings, or readings that failed our checks 2026-04-24: no daily value, under 18 hours of readings, or readings that failed our checks 2026-04-25: no daily value, under 18 hours of readings, or readings that failed our checks 2026-04-26: no daily value, under 18 hours of readings, or readings that failed our checks 2026-04-27: no daily value, under 18 hours of readings, or readings that failed our checks 2026-04-28: no daily value, under 18 hours of readings, or readings that failed our checks 2026-04-29: no daily value, under 18 hours of readings, or readings that failed our checks 2026-04-30: no daily value, under 18 hours of readings, or readings that failed our checks 2026-05-01: no daily value, under 18 hours of readings, or readings that failed our checks 2026-05-02: no daily value, under 18 hours of readings, or readings that failed our checks 2026-05-03: no daily value, under 18 hours of readings, or readings that failed our checks 2026-05-04: no daily value, under 18 hours of readings, or readings that failed our checks 2026-05-05: no daily value, under 18 hours of readings, or readings that failed our checks 2026-05-06: no daily value, under 18 hours of readings, or readings that failed our checks 2026-05-07: no daily value, under 18 hours of readings, or readings that failed our checks 2026-05-08: no daily value, under 18 hours of readings, or readings that failed our checks 2026-05-09: no daily value, under 18 hours of readings, or readings that failed our checks 2026-05-10: no daily value, under 18 hours of readings, or readings that failed our checks 2026-05-11: no daily value, under 18 hours of readings, or readings that failed our checks 2026-05-12: no daily value, under 18 hours of readings, or readings that failed our checks 2026-05-13: no daily value, under 18 hours of readings, or readings that failed our checks 2026-05-14: no daily value, under 18 hours of readings, or readings that failed our checks 2026-05-15: no daily value, under 18 hours of readings, or readings that failed our checks 2026-05-16: no daily value, under 18 hours of readings, or readings that failed our checks 2026-05-17: no daily value, under 18 hours of readings, or readings that failed our checks 2026-05-18: no daily value, under 18 hours of readings, or readings that failed our checks 2026-05-19: no daily value, under 18 hours of readings, or readings that failed our checks 2026-05-20: no daily value, under 18 hours of readings, or readings that failed our checks 2026-05-21: no daily value, under 18 hours of readings, or readings that failed our checks 2026-05-22: no daily value, under 18 hours of readings, or readings that failed our checks 2026-05-23: no daily value, under 18 hours of readings, or readings that failed our checks 2026-05-24: no daily value, under 18 hours of readings, or readings that failed our checks 2026-05-25: no daily value, under 18 hours of readings, or readings that failed our checks 2026-05-26: no daily value, under 18 hours of readings, or readings that failed our checks 2026-05-27: no daily value, under 18 hours of readings, or readings that failed our checks 2026-05-28: no daily value, under 18 hours of readings, or readings that failed our checks 2026-05-29: no daily value, under 18 hours of readings, or readings that failed our checks 2026-05-30: no daily value, under 18 hours of readings, or readings that failed our checks 2026-05-31: no daily value, under 18 hours of readings, or readings that failed our checks 2026-06-01: no daily value, under 18 hours of readings, or readings that failed our checks 2026-06-02: no daily value, under 18 hours of readings, or readings that failed our checks 2026-06-03: no daily value, under 18 hours of readings, or readings that failed our checks 2026-06-04: no daily value, under 18 hours of readings, or readings that failed our checks 2026-06-05: no daily value, under 18 hours of readings, or readings that failed our checks 2026-06-06: no daily value, under 18 hours of readings, or readings that failed our checks 2026-06-07: no daily value, under 18 hours of readings, or readings that failed our checks 2026-06-08: no daily value, under 18 hours of readings, or readings that failed our checks 2026-06-09: no daily value, under 18 hours of readings, or readings that failed our checks 2026-06-10: no daily value, under 18 hours of readings, or readings that failed our checks 2026-06-11: no daily value, under 18 hours of readings, or readings that failed our checks 2026-06-12: no daily value, under 18 hours of readings, or readings that failed our checks 2026-06-13: no daily value, under 18 hours of readings, or readings that failed our checks 2026-06-14: no daily value, under 18 hours of readings, or readings that failed our checks 2026-06-15: no daily value, under 18 hours of readings, or readings that failed our checks 2026-06-16: no daily value, under 18 hours of readings, or readings that failed our checks 2026-06-17: no daily value, under 18 hours of readings, or readings that failed our checks 2026-06-18: no daily value, under 18 hours of readings, or readings that failed our checks 2026-06-19: no daily value, under 18 hours of readings, or readings that failed our checks 2026-06-20: no daily value, under 18 hours of readings, or readings that failed our checks 2026-06-21: no daily value, under 18 hours of readings, or readings that failed our checks 2026-06-22: no daily value, under 18 hours of readings, or readings that failed our checks 2026-06-23: no daily value, under 18 hours of readings, or readings that failed our checks 2026-06-24: no daily value, under 18 hours of readings, or readings that failed our checks 2026-06-25: no daily value, under 18 hours of readings, or readings that failed our checks 2026-06-26: no daily value, under 18 hours of readings, or readings that failed our checks 2026-06-27: no daily value, under 18 hours of readings, or readings that failed our checks 2026-06-28: no daily value, under 18 hours of readings, or readings that failed our checks 2026-06-29: no daily value, under 18 hours of readings, or readings that failed our checks 2026-06-30: no daily value, under 18 hours of readings, or readings that failed our checks 2026-07-01: no daily value, under 18 hours of readings, or readings that failed our checks 2026-07-02: no daily value, under 18 hours of readings, or readings that failed our checks 2026-07-03: no daily value, under 18 hours of readings, or readings that failed our checks 2026-07-04: no daily value, under 18 hours of readings, or readings that failed our checks 2026-07-05: no daily value, under 18 hours of readings, or readings that failed our checks 2026-07-06: no daily value, under 18 hours of readings, or readings that failed our checks 2026-07-07: no daily value, under 18 hours of readings, or readings that failed our checks 2026-07-08: no daily value, under 18 hours of readings, or readings that failed our checks 2026-07-09: no daily value, under 18 hours of readings, or readings that failed our checks 2026-07-10: no daily value, under 18 hours of readings, or readings that failed our checks 2026-07-11: no daily value, under 18 hours of readings, or readings that failed our checks 2026-07-12: no daily value, under 18 hours of readings, or readings that failed our checks 2026-07-13: no daily value, under 18 hours of readings, or readings that failed our checks 2026-07-14: no daily value, under 18 hours of readings, or readings that failed our checks 2026-07-15: no daily value, under 18 hours of readings, or readings that failed our checks 2026-07-16: no daily value, under 18 hours of readings, or readings that failed our checks 2026-07-17: no daily value, under 18 hours of readings, or readings that failed our checks 2026-07-18: no daily value, under 18 hours of readings, or readings that failed our checks 2026-07-19: no daily value, under 18 hours of readings, or readings that failed our checks 2026-07-20: no daily value, under 18 hours of readings, or readings that failed our checks 2026-07-21: no daily value, under 18 hours of readings, or readings that failed our checks 2026-07-22: no daily value, under 18 hours of readings, or readings that failed our checks 2026-07-23: no daily value, under 18 hours of readings, or readings that failed our checks 2026-07-24: no daily value, under 18 hours of readings, or readings that failed our checks 2026-07-25: no daily value, under 18 hours of readings, or readings that failed our checks 2026-07-26: no daily value, under 18 hours of readings, or readings that failed our checks 2026-07-27: no daily value, under 18 hours of readings, or readings that failed our checks 2026-07-28: no daily value, under 18 hours of readings, or readings that failed our checks 2026-07-29: no daily value, under 18 hours of readings, or readings that failed our checks 2026-07-30: no daily value, under 18 hours of readings, or readings that failed our checks 2026-07-31: no daily value, under 18 hours of readings, or readings that failed our checks 2026-08-01: no daily value, under 18 hours of readings, or readings that failed our checks 2026-08-02: no daily value, under 18 hours of readings, or readings that failed our checks 2026-08-03: no daily value, under 18 hours of readings, or readings that failed our checks 2026-08-04: no daily value, under 18 hours of readings, or readings that failed our checks 2026-08-05: no daily value, under 18 hours of readings, or readings that failed our checks 2026-08-06: no daily value, under 18 hours of readings, or readings that failed our checks 2026-08-07: no daily value, under 18 hours of readings, or readings that failed our checks 2026-08-08: no daily value, under 18 hours of readings, or readings that failed our checks 2026-08-09: no daily value, under 18 hours of readings, or readings that failed our checks 2026-08-10: no daily value, under 18 hours of readings, or readings that failed our checks 2026-08-11: no daily value, under 18 hours of readings, or readings that failed our checks 2026-08-12: no daily value, under 18 hours of readings, or readings that failed our checks 2026-08-13: no daily value, under 18 hours of readings, or readings that failed our checks 2026-08-14: no daily value, under 18 hours of readings, or readings that failed our checks 2026-08-15: no daily value, under 18 hours of readings, or readings that failed our checks 2026-08-16: no daily value, under 18 hours of readings, or readings that failed our checks 2026-08-17: no daily value, under 18 hours of readings, or readings that failed our checks 2026-08-18: no daily value, under 18 hours of readings, or readings that failed our checks 2026-08-19: no daily value, under 18 hours of readings, or readings that failed our checks 2026-08-20: no daily value, under 18 hours of readings, or readings that failed our checks 2026-08-21: no daily value, under 18 hours of readings, or readings that failed our checks 2026-08-22: no daily value, under 18 hours of readings, or readings that failed our checks 2026-08-23: no daily value, under 18 hours of readings, or readings that failed our checks 2026-08-24: no daily value, under 18 hours of readings, or readings that failed our checks 2026-08-25: no daily value, under 18 hours of readings, or readings that failed our checks 2026-08-26: no daily value, under 18 hours of readings, or readings that failed our checks 2026-08-27: no daily value, under 18 hours of readings, or readings that failed our checks 2026-08-28: no daily value, under 18 hours of readings, or readings that failed our checks 2026-08-29: no daily value, under 18 hours of readings, or readings that failed our checks 2026-08-30: no daily value, under 18 hours of readings, or readings that failed our checks 2026-08-31: no daily value, under 18 hours of readings, or readings that failed our checks 2026-09-01: no daily value, under 18 hours of readings, or readings that failed our checks 2026-09-02: no daily value, under 18 hours of readings, or readings that failed our checks 2026-09-03: no daily value, under 18 hours of readings, or readings that failed our checks 2026-09-04: no daily value, under 18 hours of readings, or readings that failed our checks 2026-09-05: no daily value, under 18 hours of readings, or readings that failed our checks 2026-09-06: no daily value, under 18 hours of readings, or readings that failed our checks 2026-09-07: no daily value, under 18 hours of readings, or readings that failed our checks 2026-09-08: no daily value, under 18 hours of readings, or readings that failed our checks 2026-09-09: no daily value, under 18 hours of readings, or readings that failed our checks 2026-09-10: no daily value, under 18 hours of readings, or readings that failed our checks 2026-09-11: no daily value, under 18 hours of readings, or readings that failed our checks 2026-09-12: no daily value, under 18 hours of readings, or readings that failed our checks 2026-09-13: no daily value, under 18 hours of readings, or readings that failed our checks 2026-09-14: no daily value, under 18 hours of readings, or readings that failed our checks 2026-09-15: no daily value, under 18 hours of readings, or readings that failed our checks 2026-09-16: no daily value, under 18 hours of readings, or readings that failed our checks 2026-09-17: no daily value, under 18 hours of readings, or readings that failed our checks 2026-09-18: no daily value, under 18 hours of readings, or readings that failed our checks 2026-09-19: no daily value, under 18 hours of readings, or readings that failed our checks 2026-09-20: no daily value, under 18 hours of readings, or readings that failed our checks 2026-09-21: no daily value, under 18 hours of readings, or readings that failed our checks 2026-09-22: no daily value, under 18 hours of readings, or readings that failed our checks 2026-09-23: no daily value, under 18 hours of readings, or readings that failed our checks 2026-09-24: no daily value, under 18 hours of readings, or readings that failed our checks 2026-09-25: no daily value, under 18 hours of readings, or readings that failed our checks 2026-09-26: no daily value, under 18 hours of readings, or readings that failed our checks 2026-09-27: no daily value, under 18 hours of readings, or readings that failed our checks 2026-09-28: no daily value, under 18 hours of readings, or readings that failed our checks 2026-09-29: no daily value, under 18 hours of readings, or readings that failed our checks 2026-09-30: no daily value, under 18 hours of readings, or readings that failed our checks 2026-10-01: no daily value, under 18 hours of readings, or readings that failed our checks 2026-10-02: no daily value, no readings from the monitor 2026-10-03: no daily value, no readings from the monitor 2026-10-04: no daily value, only 14 of the 18 hours a day needs Daily history appears as days complete. 365 days without a value: 2 with no readings from the monitor, 1 with readings for part of the day (a day needs 18 hours), 362 with under 18 hours of readings or readings that failed our checks; point at a grey square for its reason (why days go blank ). One row per month, one square per local day. Good 0–50
Moderate 51–100
Sensitive groups 101–150
Unhealthy 151–200
Very unhealthy 201–300
Hazardous 301+
The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+ . About the scales
Last 4 days, hour by hour 15 30 4 Oct 10:00 local, 2026-10-04 01:00 UTC: 5.0 µg/m³ 4 Oct 11:00 local, 2026-10-04 02:00 UTC: 6.0 µg/m³ 4 Oct 12:00 local, 2026-10-04 03:00 UTC: 3.0 µg/m³ 4 Oct 13:00 local, 2026-10-04 04:00 UTC: 3.0 µg/m³ 4 Oct 14:00 local, 2026-10-04 05:00 UTC: 6.0 µg/m³ 4 Oct 15:00 local, 2026-10-04 06:00 UTC: 6.0 µg/m³ 4 Oct 16:00 local, 2026-10-04 07:00 UTC: 5.0 µg/m³ 4 Oct 17:00 local, 2026-10-04 08:00 UTC: 4.0 µg/m³ 4 Oct 18:00 local, 2026-10-04 09:00 UTC: 4.0 µg/m³ 4 Oct 19:00 local, 2026-10-04 10:00 UTC: 5.0 µg/m³ 4 Oct 20:00 local, 2026-10-04 11:00 UTC: 8.0 µg/m³ 4 Oct 21:00 local, 2026-10-04 12:00 UTC: 4.0 µg/m³ 4 Oct 22:00 local, 2026-10-04 13:00 UTC: 6.0 µg/m³ 4 Oct 23:00 local, 2026-10-04 14:00 UTC: 5.0 µg/m³ 5 Oct 00:00 local, 2026-10-04 15:00 UTC: 3.0 µg/m³ 5 Oct 01:00 local, 2026-10-04 16:00 UTC: 7.0 µg/m³ 5 Oct 02:00 local, 2026-10-04 17:00 UTC: 5.0 µg/m³ 5 Oct 03:00 local, 2026-10-04 18:00 UTC: 5.0 µg/m³ 5 Oct 04:00 local, 2026-10-04 19:00 UTC: 4.0 µg/m³ 5 Oct 05:00 local, 2026-10-04 20:00 UTC: 6.0 µg/m³ 5 Oct 06:00 local, 2026-10-04 21:00 UTC: 15.0 µg/m³ 5 Oct 07:00 local, 2026-10-04 22:00 UTC: 17.0 µg/m³ 5 Oct 08:00 local, 2026-10-04 23:00 UTC: 12.0 µg/m³ 5 Oct 09:00 local, 2026-10-05 00:00 UTC: 15.0 µg/m³ 5 Oct 10:00 local, 2026-10-05 01:00 UTC: 11.0 µg/m³ Oct 2 Oct 3 Oct 4 Oct 5 Ponggae-dong's local time; hover a bar for UTC. Dashed line: WHO 24-hour guideline (15 µg/m³).
Monitors
PM2.5 from 1 reference monitor, updated hourly.
Station Operator Type 조천읍Permission requested (AirKorea, 2026-10-01) Korea Air Ministry of Environment Reference
The city's value is the median of its reference monitors each hour, when at least a third of them report (three are always enough); low-cost sensors are listed but not counted when reference monitors exist. Data via OpenAQ; licences as listed. How we rank . Embed this on your site .
Other cities in South Korea 30-day averages, US AQI. All of South Korea .
Updated 2026-10-05 02:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index.