What is the air quality trend in Ponta Delgada?

Over the past 15 days, Ponta Delgada had an average AQI of 27 based on station measurements. The worst day was with AQI .

How is Ponta Delgada air quality measured?

Air quality in Ponta Delgada 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 Ponta Delgada, Portugal

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

Historical PM2.5 and AQI trend from monitoring stations near Ponta Delgada, Portugal.

Current AQI
Good

48 Hours 7 Days 14 Days 20 Days

PM2.5 Trend

163h · 2 stations

Daily Summary

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-04-10	21	17–40	5.1 µg/m³	9.1	16h	2
2026-04-09	41	35–44	9.8 µg/m³	21.3	13h	2
2026-04-08	36	35–38	8.8 µg/m³	28.0	2h	2
2026-04-07	30	27–31	7.2 µg/m³	27.7	16h	2
2026-04-06	27	17–29	6.4 µg/m³	10.7	15h	2
2026-04-04	21	21–21	5.0 µg/m³	9.0	6h	2
2026-04-03	19	19–21	4.5 µg/m³	8.2	16h	2
2026-04-02	20	8–29	4.9 µg/m³	7.2	14h	2
2026-04-01	30	25–35	7.2 µg/m³	17.3	15h	2
2026-03-31	32	31–38	7.7 µg/m³	23.9	10h	2
2026-03-29	29	29–29	7.0 µg/m³	13.0	1h	2
2026-03-28	27	27–29	6.6 µg/m³	10.7	5h	2
2026-03-27	30	27–33	7.2 µg/m³	10.1	14h	2
2026-03-26	28	27–31	6.8 µg/m³	12.6	14h	2
2026-03-25	28	27–29	6.7 µg/m³	14.4	6h	2

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