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CAI
Comprehensive Air-quality Index

  • Seoul, CAI : Moderate 51

  • Busan, CAI : Moderate 57

  • Daegu, CAI : Good 45

  • Incheon, CAI : Good 50

  • Gwangju, CAI : Moderate 53

  • Daejeon, CAI : Moderate 53

  • Ulsan, CAI : Moderate 60

  • Gyeonggi, CAI : Good 50

  • Gangwon, CAI : Good 41

  • Jeju, CAI : Moderate 58