What is the air quality trend in Piera?

Over the past 15 days, Piera had an average AQI of 34 based on station measurements. The worst day was 2026-05-30 with AQI 43.

How is Piera air quality measured?

Air quality in Piera is measured by ground-level monitoring stations that report PM2.5 and PM10 concentrations hourly. CERNS.IO aggregates readings from nearby stations and converts PM2.5 to the US EPA Air Quality Index (AQI) scale.

Air Quality History for Piera, Spain

Name: Piera Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Piera, Spain.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

336h

PM2.5 Station

336h · 18 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-05-30	43	33–54	10.5 µg/m³	30.4	8h	21
2026-05-29	40	28–51	9.6 µg/m³	31.4	24h	25
2026-05-28	39	29–54	9.4 µg/m³	29.0	24h	23
2026-05-27	40	31–54	9.7 µg/m³	23.8	24h	24
2026-05-26	40	33–50	9.6 µg/m³	21.1	24h	23
2026-05-25	36	22–52	8.7 µg/m³	17.2	24h	22
2026-05-24	38	28–50	9.1 µg/m³	16.1	24h	23
2026-05-23	37	29–47	8.9 µg/m³	18.5	24h	25
2026-05-22	37	31–48	8.8 µg/m³	20.9	24h	21
2026-05-21	34	23–42	8.1 µg/m³	18.5	24h	21
2026-05-20	39	26–146	10.2 µg/m³	17.9	24h	22
2026-05-19	31	25–45	7.5 µg/m³	13.2	24h	26
2026-05-18	26	18–40	6.2 µg/m³	8.7	24h	25
2026-05-17	23	7–29	5.6 µg/m³	7.4	24h	25
2026-05-16	21	8–28	4.9 µg/m³	7.0	16h	20

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