SmogRank / Countries / Spain / April 2026
Most polluted cities in Spain, April 2026
No city in Spain had measurements on 70% of the days, so April 2026 has no board for Spain.
Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+
All cities in the world, April 2026 · Spain now