Article from 18.11.2025 | Last changed: 17.11.2025
The air quality index
… over 240 over 100 over 100 poor 55-90 31-50 145-240 61-100 61-100 moderate 28-54 16-30 73-144 31-60 31-60 good 10-27 6-15 24-72 11-30 11-30 very good 0-9 0-5 0-24 0-10 0-10 * Hourly means in µg/m³ These threshold values …