What is the air quality trend in Bar?

Over the past 16 days, Bar had an average AQI of 27 based on station measurements. The worst day was with AQI .

How is Bar air quality measured?

Air quality in Bar 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 Bar, ME

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

Historical PM2.5 and AQI trend from monitoring stations near Bar, ME.

115

Current AQI
Unhealthy for sensitive groups

48 Hours 7 Days 14 Days 20 Days

PM2.5 Trend

284h · 3 stations

Daily Summary

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-04-10	37	7–255	15.9 µg/m³	25.6	21h	2
2026-04-09	26	4–85	7.2 µg/m³	12.8	15h	2
2026-04-08	15	10–22	3.6 µg/m³	7.4	9h	1
2026-04-07	44	17–132	12.4 µg/m³	15.9	24h	2
2026-04-06	56	20–117	17.1 µg/m³	21.4	16h	2
2026-04-04	25	8–57	6.0 µg/m³	8.6	15h	2
2026-04-03	9	1–35	2.2 µg/m³	4.3	17h	2
2026-04-02	6	2–38	1.5 µg/m³	7.9	18h	2
2026-04-01	5	2–8	1.1 µg/m³	2.8	20h	2
2026-03-31	21	8–41	5.0 µg/m³	7.2	21h	2
2026-03-30	28	5–162	10.5 µg/m³	13.6	10h	2
2026-03-29	7	4–12	1.7 µg/m³	4.0	23h	2
2026-03-28	21	6–57	5.2 µg/m³	7.6	22h	2
2026-03-27	10	2–67	2.4 µg/m³	7.3	23h	1
2026-03-26	36	3–63	9.0 µg/m³	15.5	24h	2
2026-03-25	93	64–157	32.6 µg/m³	41.2	6h	2

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