Air quality in Salamanca, Castile and León, Spain today
Mr. Duck’s Air Quality Score
Moderate air today for Salamanca, Coquimbo Region, Chile
This friendly indicator summarizes the latest city readings. For health guidance, please see: EPA AirNow or WHO.
Air quality today
The air quality in Salamanca today is classified as Moderate. The primary pollutant identified is PM2.5 (fine particles). Measurements show a PM2.5 value of 17.111897 and a PM10 value of 59.78373, based on 25 valid observations collected via OpenAQ.
These figures reflect the current monitoring results for the city. This page is informational; for health guidance, use official sources such as EPA AirNow or WHO.
Latest sensor values
PM categories follow US EPA AQI breakpoints, shown here as an estimate derived from the latest valid measurements (this project does not compute EPA NowCast/24-hour AQI yet).
What the data includes
The air‑quality record for Salamanca draws on eleven data rows collected at two monitoring stations. All seven common pollutants are represented: carbon monoxide (CO), nitrogen oxide (NO), nitrogen dioxide (NO₂), ozone (O₃), particulate matter 10 µm and smaller (PM₁₀), fine particulate matter 2.5 µm and smaller (PM₂.₅), and sulfur dioxide (SO₂). Freshness varies across the set: the most recent updates are from 2026‑02‑09 15:00 UTC for NO₂, PM₁₀, SO₂, O₃ and PM₂.5; the latest NO reading dates back to 2024‑01‑29 23:00 UTC, while CO is only available from an older entry on 2022‑12‑29 06:00 UTC.
Across the recent measurements, the maximum observed values are 16 µg/m³ for NO (recorded at SALAMANCA 5), 11 µg/m³ for NO₂ (SALAMANCA 5), 6 µg/m³ for PM₁₀ (SALAMANCA 5), and 10 µg/m³ for SO₂ (SALAMANCA 5). Median concentrations tend to be lower: 9 µg/m³ for NO, 7.5 µg/m³ for NO₂, 4.5 µg/m³ for PM₁₀, and 5.5 µg/m³ for SO₂, indicating a modest spread between typical and peak levels. For the pollutants with single‑point data, CO is consistently reported at 100 µg/m³ (SALAMANCA 5), O₃ at 68 µg/m³ (SALAMANCA 6), and PM₂.5 at 3 µg/m³ (SALAMANDA 6).
The dataset shows uneven temporal coverage: half of the rows are recent (within the last 30 days), while four entries are classified as “old” and none are unknown. Because only two stations contribute, conditions can differ across neighborhoods and times not captured here, so the figures represent a snapshot rather than a complete city‑wide picture.
Learn more about sources and filtering: About the data.
Trusted references: WHO (Air pollution) · US EPA AirNow · European Environment Agency (Air)
Latest sensor values (bars)
PM categories follow US EPA AQI breakpoints, shown here as an estimate derived from the latest valid measurements (this project does not compute EPA NowCast/24-hour AQI yet).
Data notes
The data set for Salamanca includes 25 valid measurements and is updated within 3 days, with the most recent values recorded on 2026‑02‑10 at 21:00 UTC. These figures represent a snapshot of conditions across the city; air quality can differ by specific location and time of day, so individual experiences may vary from the reported averages.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| SALAMANCA 5 | co | 100.0 | µg/m³ | 2022-12-29 06:00 UTC |
| SALAMANCA 5 | no | 16.0 | µg/m³ | 2024-01-29 23:00 UTC |
| SALAMANCA 5 | no2 | 11.0 | µg/m³ | 2026-02-09 15:00 UTC |
| SALAMANCA 5 | pm10 | 6.0 | µg/m³ | 2026-02-09 15:00 UTC |
| SALAMANCA 5 | so2 | 10.0 | µg/m³ | 2026-02-09 15:00 UTC |
| SALAMANCA 6 | no | 2.0 | µg/m³ | 2024-01-29 23:00 UTC |
| SALAMANCA 6 | no2 | 4.0 | µg/m³ | 2026-02-09 15:00 UTC |
| SALAMANCA 6 | o3 | 68.0 | µg/m³ | 2026-02-09 15:00 UTC |
| SALAMANCA 6 | pm10 | 3.0 | µg/m³ | 2026-02-09 15:00 UTC |
| SALAMANCA 6 | pm25 | 3.0 | µg/m³ | 2026-02-09 15:00 UTC |
| SALAMANCA 6 | so2 | 1.0 | µg/m³ | 2020-01-27 10:00 UTC |