What is the air quality trend in Piera?

Over the past 8 days, Piera had an average AQI of 53 based on station measurements. The worst day was 2026-07-15 with AQI 59.

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

57h

PM2.5 Station

57h · 4 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-22	54	43–60	14.2 µg/m³	6h	4
2026-07-21	58	43–68	15.7 µg/m³	5h	3
2026-07-20	49	32–57	12.0 µg/m³	11h	3
2026-07-19	52	40–61	13.8 µg/m³	4h	2
2026-07-18	53	39–65	14.1 µg/m³	6h	3
2026-07-17	50	31–68	13.2 µg/m³	10h	3
2026-07-16	52	40–65	13.5 µg/m³	8h	2
2026-07-15	59	33–74	16.5 µg/m³	7h	3

Back to Piera Air Quality