SmogRank / Spain / La Rioja

Air quality in Alfaro

No new readings from Alfaro's monitors since 26 Sept. All 311 monitors run by EEA in Spain have stopped reporting, not only Alfaro's. The figures below are from before then; they update when the data returns.

La Rioja, Spain.

Mean for 26 Sept55US AQI
Moderate

PM2.5 11.2 µg/m³, 0.7× the WHO 24-hour guideline. The most recent day with readings.

About usual for late September (9.3 µg/m³).

Where Alfaro ranks

24 hours–not enough data
7 days–not enough data
30 days–not enough data
This year–not enough data

Bad-air episodes that reached Alfaro

Times when Alfaro and many cities around it had PM2.5 at twice their usual or more on the same days. All episodes.

The last 12 months, day by day

1102031Nov 2025DecJan 2026FebMarAprMayJunJulAugSepOct2025-11-01: no daily value, only 14 of the 18 hours a day needs2025-11-02: no daily value, only 6 of the 18 hours a day needs2025-11-03: no daily value, only 9 of the 18 hours a day needs2025-11-04: no daily value, only 9 of the 18 hours a day needs2025-11-05: no daily value, only 6 of the 18 hours a day needs2025-11-06: no daily value, only 3 of the 18 hours a day needs2025-11-07: no daily value, only 4 of the 18 hours a day needs2025-11-08: no daily value, only 8 of the 18 hours a day needs2025-11-09: no daily value, only 8 of the 18 hours a day needs2025-11-10: no daily value, only 6 of the 18 hours a day needs2025-11-11: no daily value, only 6 of the 18 hours a day needs2025-11-12: no daily value, only 6 of the 18 hours a day needs2025-11-13: no daily value, only 8 of the 18 hours a day needs2025-11-14: no daily value, only 6 of the 18 hours a day needs2025-11-15: no daily value, only 7 of the 18 hours a day needs2025-11-16: no daily value, only 11 of the 18 hours a day needs2025-11-17: no daily value, only 10 of the 18 hours a day needs2025-11-18: no daily value, only 9 of the 18 hours a day needs2025-11-19: no daily value, only 12 of the 18 hours a day needs2025-11-20: no daily value, only 7 of the 18 hours a day needs2025-11-21: no daily value, only 6 of the 18 hours a day needs2025-11-22: no daily value, only 7 of the 18 hours a day needs2025-11-23: no daily value, only 5 of the 18 hours a day needs2025-11-24: no daily value, only 7 of the 18 hours a day needs2025-11-25: no daily value, only 8 of the 18 hours a day needs2025-11-26: no daily value, only 10 of the 18 hours a day needs2025-11-27: no daily value, only 7 of the 18 hours a day needs2025-11-28: no daily value, only 5 of the 18 hours a day needs2025-11-29: no daily value, no readings from the monitor2025-11-30: no daily value, no readings from the monitor2025-12-01: no daily value, no readings from the monitor2025-12-02: no daily value, no readings from the monitor2025-12-03: no daily value, no readings from the monitor2025-12-04: no daily value, only 9 of the 18 hours a day needs2025-12-05: no daily value, only 7 of the 18 hours a day needs2025-12-06: no daily value, only 9 of the 18 hours a day needs2025-12-07: no daily value, only 11 of the 18 hours a day needs2025-12-08: no daily value, only 15 of the 18 hours a day needs2025-12-09: no daily value, only 11 of the 18 hours a day needs2025-12-10: no daily value, only 14 of the 18 hours a day needs2025-12-11: no daily value, only 12 of the 18 hours a day needs2025-12-12: no daily value, only 10 of the 18 hours a day needs2025-12-13: no daily value, only 6 of the 18 hours a day needs2025-12-14: no daily value, only 8 of the 18 hours a day needs2025-12-15: no daily value, only 4 of the 18 hours a day needs2025-12-16: no daily value, only 7 of the 18 hours a day needs2025-12-17: no daily value, only 8 of the 18 hours a day needs2025-12-18: no daily value, only 10 of the 18 hours a day needs2025-12-19: no daily value, only 5 of the 18 hours a day needs2025-12-20: no daily value, only 6 of the 18 hours a day needs2025-12-21: no daily value, only 7 of the 18 hours a day needs2025-12-22: no daily value, only 3 of the 18 hours a day needs2025-12-23: no daily value, no readings from the monitor2025-12-24: no daily value, no readings from the monitor2025-12-25: no daily value, only 3 of the 18 hours a day needs2025-12-26: no daily value, only 2 of the 18 hours a day needs2025-12-27: no daily value, no readings from the monitor2025-12-28: no daily value, only 3 of the 18 hours a day needs2025-12-29: no daily value, only 5 of the 18 hours a day needs2025-12-30: no daily value, only 1 of the 18 hours a day needs2025-12-31: no daily value, no readings from the monitor2026-01-01: no daily value, only 5 of the 18 hours a day needs2026-01-02: no daily value, only 1 of the 18 hours a day needs2026-01-03: no daily value, no readings from the monitor2026-01-04: no daily value, no readings from the monitor2026-01-05: no daily value, only 1 of the 18 hours a day needs2026-01-06: no daily value, only 3 of the 18 hours a day needs2026-01-07: no daily value, only 2 of the 18 hours a day needs2026-01-08: no daily value, only 2 of the 18 hours a day needs2026-01-09: no daily value, only 3 of the 18 hours a day needs2026-01-10: no daily value, only 9 of the 18 hours a day needs2026-01-11: no daily value, only 12 of the 18 hours a day needs2026-01-12: no daily value, only 13 of the 18 hours a day needs2026-01-13: no daily value, only 14 of the 18 hours a day needs2026-01-14: no daily value, only 16 of the 18 hours a day needs2026-01-15: no daily value, only 13 of the 18 hours a day needs2026-01-16: no daily value, only 17 of the 18 hours a day needs2026-01-17: no daily value, only 8 of the 18 hours a day needs2026-01-18: no daily value, only 14 of the 18 hours a day needs2026-01-19: no daily value, only 13 of the 18 hours a day needs2026-01-20: no daily value, only 14 of the 18 hours a day needs2026-01-21: 5.0 µg/m³2026-01-22: 3.3 µg/m³2026-01-23: 1.6 µg/m³2026-01-24: no daily value, only 12 of the 18 hours a day needs2026-01-25: no daily value, only 17 of the 18 hours a day needs2026-01-26: no daily value, only 14 of the 18 hours a day needs2026-01-27: no daily value, only 14 of the 18 hours a day needs2026-01-28: no daily value, only 16 of the 18 hours a day needs2026-01-29: no daily value, only 11 of the 18 hours a day needs2026-01-30: no daily value, only 14 of the 18 hours a day needs2026-01-31: no daily value, only 10 of the 18 hours a day needs2026-02-01: no daily value, only 10 of the 18 hours a day needs2026-02-02: no daily value, only 12 of the 18 hours a day needs2026-02-03: no daily value, only 13 of the 18 hours a day needs2026-02-04: no daily value, only 16 of the 18 hours a day needs2026-02-05: no daily value, only 16 of the 18 hours a day needs2026-02-06: no daily value, only 15 of the 18 hours a day needs2026-02-07: no daily value, only 15 of the 18 hours a day needs2026-02-08: no daily value, only 15 of the 18 hours a day needs2026-02-09: no daily value, only 10 of the 18 hours a day needs2026-02-10: no daily value, no readings from the monitor2026-02-11: no daily value, no readings from the monitor2026-02-12: no daily value, no readings from the monitor2026-02-13: no daily value, no readings from the monitor2026-02-14: no daily value, no readings from the monitor2026-02-15: no daily value, no readings from the monitor2026-02-16: no daily value, no readings from the monitor2026-02-17: no daily value, no readings from the monitor2026-02-18: no daily value, no readings from the monitor2026-02-19: no daily value, no readings from the monitor2026-02-20: no daily value, no readings from the monitor2026-02-21: no daily value, no readings from the monitor2026-02-22: no daily value, no readings from the monitor2026-02-23: no daily value, no readings from the monitor2026-02-24: no daily value, no readings from the monitor2026-02-25: no daily value, no readings from the monitor2026-02-26: no daily value, no readings from the monitor2026-02-27: no daily value, no readings from the monitor2026-02-28: no daily value, no readings from the monitor2026-03-01: no daily value, no readings from the monitor2026-03-02: no daily value, no readings from the monitor2026-03-03: no daily value, no readings from the monitor2026-03-04: no daily value, no readings from the monitor2026-03-05: no daily value, no readings from the monitor2026-03-06: no daily value, no readings from the monitor2026-03-07: no daily value, no readings from the monitor2026-03-08: no daily value, no readings from the monitor2026-03-09: no daily value, no readings from the monitor2026-03-10: no daily value, no readings from the monitor2026-03-11: no daily value, no readings from the monitor2026-03-12: no daily value, no readings from the monitor2026-03-13: no daily value, no readings from the monitor2026-03-14: no daily value, no readings from the monitor2026-03-15: no daily value, no readings from the monitor2026-03-16: no daily value, no readings from the monitor2026-03-17: no daily value, no readings from the monitor2026-03-18: no daily value, no readings from the monitor2026-03-19: no daily value, no readings from the monitor2026-03-20: no daily value, no readings from the monitor2026-03-21: no daily value, no readings from the monitor2026-03-22: no daily value, no readings from the monitor2026-03-23: no daily value, no readings from the monitor2026-03-24: no daily value, no readings from the monitor2026-03-25: no daily value, no readings from the monitor2026-03-26: no daily value, no readings from the monitor2026-03-27: no daily value, no readings from the monitor2026-03-28: no daily value, no readings from the monitor2026-03-29: no daily value, no readings from the monitor2026-03-30: no daily value, no readings from the monitor2026-03-31: no daily value, no readings from the monitor2026-04-01: no daily value, no readings from the monitor2026-04-02: no daily value, no readings from the monitor2026-04-03: no daily value, no readings from the monitor2026-04-04: no daily value, no readings from the monitor2026-04-05: no daily value, no readings from the monitor2026-04-06: no daily value, no readings from the monitor2026-04-07: no daily value, no readings from the monitor2026-04-08: no daily value, no readings from the monitor2026-04-09: no daily value, no readings from the monitor2026-04-10: no daily value, no readings from the monitor2026-04-11: no daily value, no readings from the monitor2026-04-12: no daily value, no readings from the monitor2026-04-13: no daily value, no readings from the monitor2026-04-14: no daily value, no readings from the monitor2026-04-15: no daily value, no readings from the monitor2026-04-16: no daily value, no readings from the monitor2026-04-17: no daily value, no readings from the monitor2026-04-18: no daily value, no readings from the monitor2026-04-19: no daily value, no readings from the monitor2026-04-20: no daily value, no readings from the monitor2026-04-21: no daily value, no readings from the monitor2026-04-22: no daily value, no readings from the monitor2026-04-23: no daily value, no readings from the monitor2026-04-24: no daily value, no readings from the monitor2026-04-25: no daily value, no readings from the monitor2026-04-26: no daily value, no readings from the monitor2026-04-27: no daily value, no readings from the monitor2026-04-28: no daily value, no readings from the monitor2026-04-29: no daily value, no readings from the monitor2026-04-30: no daily value, no readings from the monitor2026-05-01: no daily value, no readings from the monitor2026-05-02: no daily value, no readings from the monitor2026-05-03: no daily value, no readings from the monitor2026-05-04: no daily value, no readings from the monitor2026-05-05: no daily value, no readings from the monitor2026-05-06: no daily value, no readings from the monitor2026-05-07: no daily value, no readings from the monitor2026-05-08: no daily value, no readings from the monitor2026-05-09: no daily value, no readings from the monitor2026-05-10: no daily value, no readings from the monitor2026-05-11: no daily value, no readings from the monitor2026-05-12: no daily value, no readings from the monitor2026-05-13: no daily value, no readings from the monitor2026-05-14: no daily value, no readings from the monitor2026-05-15: no daily value, no readings from the monitor2026-05-16: no daily value, no readings from the monitor2026-05-17: no daily value, no readings from the monitor2026-05-18: no daily value, no readings from the monitor2026-05-19: no daily value, only 9 of the 18 hours a day needs2026-05-20: no daily value, only 7 of the 18 hours a day needs2026-05-21: no daily value, only 8 of the 18 hours a day needs2026-05-22: no daily value, no readings from the monitor2026-05-23: no daily value, no readings from the monitor2026-05-24: no daily value, only 1 of the 18 hours a day needs2026-05-25: no daily value, only 4 of the 18 hours a day needs2026-05-26: no daily value, only 9 of the 18 hours a day needs2026-05-27: no daily value, only 16 of the 18 hours a day needs2026-05-28: 12.4 µg/m³2026-05-29: no daily value, only 17 of the 18 hours a day needs2026-05-30: no daily value, only 10 of the 18 hours a day needs2026-05-31: no daily value, only 17 of the 18 hours a day needs2026-06-01: no daily value, only 16 of the 18 hours a day needs2026-06-02: no daily value, only 11 of the 18 hours a day needs2026-06-03: no daily value, only 13 of the 18 hours a day needs2026-06-04: no daily value, only 15 of the 18 hours a day needs2026-06-05: no daily value, only 8 of the 18 hours a day needs2026-06-06: 6.7 µg/m³2026-06-07: no daily value, only 7 of the 18 hours a day needs2026-06-08: no daily value, only 11 of the 18 hours a day needs2026-06-09: no daily value, only 10 of the 18 hours a day needs2026-06-10: no daily value, only 8 of the 18 hours a day needs2026-06-11: no daily value, only 6 of the 18 hours a day needs2026-06-12: no daily value, only 6 of the 18 hours a day needs2026-06-13: no daily value, no readings from the monitor2026-06-14: no daily value, no readings from the monitor2026-06-15: no daily value, only 8 of the 18 hours a day needs2026-06-16: no daily value, only 7 of the 18 hours a day needs2026-06-17: no daily value, only 10 of the 18 hours a day needs2026-06-18: no daily value, only 12 of the 18 hours a day needs2026-06-19: no daily value, only 17 of the 18 hours a day needs2026-06-20: no daily value, only 16 of the 18 hours a day needs2026-06-21: no daily value, only 11 of the 18 hours a day needs2026-06-22: no daily value, only 10 of the 18 hours a day needs2026-06-23: no daily value, only 11 of the 18 hours a day needs2026-06-24: no daily value, only 13 of the 18 hours a day needs2026-06-25: no daily value, only 9 of the 18 hours a day needs2026-06-26: no daily value, only 8 of the 18 hours a day needs2026-06-27: no daily value, no readings from the monitor2026-06-28: no daily value, only 7 of the 18 hours a day needs2026-06-29: no daily value, only 11 of the 18 hours a day needs2026-06-30: no daily value, only 6 of the 18 hours a day needs2026-07-01: no daily value, only 9 of the 18 hours a day needs2026-07-02: no daily value, only 10 of the 18 hours a day needs2026-07-03: no daily value, only 11 of the 18 hours a day needs2026-07-04: no daily value, only 8 of the 18 hours a day needs2026-07-05: no daily value, only 7 of the 18 hours a day needs2026-07-06: no daily value, only 9 of the 18 hours a day needs2026-07-07: no daily value, only 8 of the 18 hours a day needs2026-07-08: no daily value, only 9 of the 18 hours a day needs2026-07-09: no daily value, only 11 of the 18 hours a day needs2026-07-10: no daily value, only 6 of the 18 hours a day needs2026-07-11: no daily value, no readings from the monitor2026-07-12: no daily value, only 9 of the 18 hours a day needs2026-07-13: no daily value, only 12 of the 18 hours a day needs2026-07-14: no daily value, only 8 of the 18 hours a day needs2026-07-15: no daily value, only 11 of the 18 hours a day needs2026-07-16: no daily value, only 8 of the 18 hours a day needs2026-07-17: no daily value, only 9 of the 18 hours a day needs2026-07-18: no daily value, no readings from the monitor2026-07-19: no daily value, only 7 of the 18 hours a day needs2026-07-20: no daily value, only 6 of the 18 hours a day needs2026-07-21: no daily value, only 12 of the 18 hours a day needs2026-07-22: no daily value, only 10 of the 18 hours a day needs2026-07-23: no daily value, only 8 of the 18 hours a day needs2026-07-24: no daily value, only 4 of the 18 hours a day needs2026-07-25: no daily value, no readings from the monitor2026-07-26: no daily value, only 8 of the 18 hours a day needs2026-07-27: no daily value, only 9 of the 18 hours a day needs2026-07-28: no daily value, only 5 of the 18 hours a day needs2026-07-29: no daily value, only 4 of the 18 hours a day needs2026-07-30: no daily value, only 8 of the 18 hours a day needs2026-07-31: no daily value, only 2 of the 18 hours a day needs2026-08-01: no daily value, only 6 of the 18 hours a day needs2026-08-02: no daily value, only 11 of the 18 hours a day needs2026-08-03: no daily value, only 13 of the 18 hours a day needs2026-08-04: no daily value, only 13 of the 18 hours a day needs2026-08-05: no daily value, only 8 of the 18 hours a day needs2026-08-06: no daily value, only 7 of the 18 hours a day needs2026-08-07: no daily value, only 4 of the 18 hours a day needs2026-08-08: no daily value, no readings from the monitor2026-08-09: no daily value, only 12 of the 18 hours a day needs2026-08-10: no daily value, only 9 of the 18 hours a day needs2026-08-11: no daily value, only 12 of the 18 hours a day needs2026-08-12: no daily value, only 13 of the 18 hours a day needs2026-08-13: no daily value, only 12 of the 18 hours a day needs2026-08-14: no daily value, only 7 of the 18 hours a day needs2026-08-15: no daily value, no readings from the monitor2026-08-16: no daily value, only 8 of the 18 hours a day needs2026-08-17: no daily value, only 8 of the 18 hours a day needs2026-08-18: no daily value, only 11 of the 18 hours a day needs2026-08-19: no daily value, only 10 of the 18 hours a day needs2026-08-20: no daily value, only 10 of the 18 hours a day needs2026-08-21: no daily value, only 9 of the 18 hours a day needs2026-08-22: no daily value, no readings from the monitor2026-08-23: no daily value, no readings from the monitor2026-08-24: no daily value, only 11 of the 18 hours a day needs2026-08-25: no daily value, only 8 of the 18 hours a day needs2026-08-26: no daily value, no readings from the monitor2026-08-27: no daily value, no readings from the monitor2026-08-28: no daily value, only 1 of the 18 hours a day needs2026-08-29: no daily value, only 2 of the 18 hours a day needs2026-08-30: no daily value, only 5 of the 18 hours a day needs2026-08-31: no daily value, only 4 of the 18 hours a day needs2026-09-01: no daily value, only 13 of the 18 hours a day needs2026-09-02: no daily value, only 16 of the 18 hours a day needs2026-09-03: no daily value, only 12 of the 18 hours a day needs2026-09-04: no daily value, only 11 of the 18 hours a day needs2026-09-05: no daily value, only 9 of the 18 hours a day needs2026-09-06: no daily value, only 10 of the 18 hours a day needs2026-09-07: no daily value, only 13 of the 18 hours a day needs2026-09-08: no daily value, only 12 of the 18 hours a day needs2026-09-09: no daily value, only 14 of the 18 hours a day needs2026-09-10: no daily value, only 15 of the 18 hours a day needs2026-09-11: no daily value, only 16 of the 18 hours a day needs2026-09-12: no daily value, only 17 of the 18 hours a day needs2026-09-13: no daily value, only 17 of the 18 hours a day needs2026-09-14: no daily value, only 13 of the 18 hours a day needs2026-09-15: no daily value, only 16 of the 18 hours a day needs2026-09-16: 3.9 µg/m³2026-09-17: no daily value, only 17 of the 18 hours a day needs2026-09-18: 3.5 µg/m³2026-09-19: no daily value, only 16 of the 18 hours a day needs2026-09-20: no daily value, only 8 of the 18 hours a day needs2026-09-21: no daily value, only 6 of the 18 hours a day needs2026-09-22: no daily value, no readings from the monitor2026-09-23: no daily value, only 14 of the 18 hours a day needs2026-09-24: 9.5 µg/m³2026-09-25: 8.0 µg/m³2026-09-26: 11.2 µg/m³2026-09-27: no daily value, only 15 of the 18 hours a day needs2026-09-28: no daily value, only 16 of the 18 hours a day needs2026-09-29: no daily value, only 13 of the 18 hours a day needs2026-09-30: no daily value, only 12 of the 18 hours a day needs2026-10-01: no daily value, under 18 hours of readings, or readings that failed our checks2026-10-02: no daily value, no readings from the monitor2026-10-03: no daily value, no readings from the monitor2026-10-04: no daily value, no readings from the monitor
0 of 10 measured days were over the WHO 24-hour guideline (15 µg/m³). 355 days without a value: 127 with no readings from the monitor, 227 with readings for part of the day (a day needs 18 hours), 1 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.
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

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

Hour by hour

No hourly readings in the last few days. The chart returns when the monitors' data arrives.

Monitors

PM2.5 from 1 reference monitor. None of them reported in the last 24 hours.

StationOperatorType
ALFAROODC-BYEEAReference

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 Spain

30-day averages, US AQI. All of Spain.

Updated 2026-10-05 04:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index.