What is the air quality trend in Suffolk?

Over the past 15 days, Suffolk had an average AQI of 59 based on station measurements. The worst day was 2026-07-17 with AQI 164.

How is Suffolk air quality measured?

Air quality in Suffolk 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 Suffolk, United States

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

Historical PM2.5 and AQI trend from monitoring stations near Suffolk, United States.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

320h

PM2.5 Station

320h · 2 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-21	46	20–88	12.4 µg/m³	19h	2
2026-07-20	64	14–143	19.4 µg/m³	24h	3
2026-07-19	69	13–191	24.9 µg/m³	22h	3
2026-07-18	110	34–192	46.0 µg/m³	24h	3
2026-07-17	164	35–223	93.5 µg/m³	23h	3
2026-07-16	103	12–245	45.8 µg/m³	23h	4
2026-07-15	50	16–143	13.8 µg/m³	22h	3
2026-07-14	39	9–58	9.6 µg/m³	21h	3
2026-07-13	36	8–74	9.0 µg/m³	24h	3
2026-07-12	40	18–140	10.3 µg/m³	24h	3
2026-07-11	34	10–69	8.4 µg/m³	24h	3
2026-07-10	36	19–74	8.9 µg/m³	21h	2
2026-07-09	35	20–62	8.5 µg/m³	24h	3
2026-07-08	29	21–40	6.9 µg/m³	24h	4
2026-07-07	30	30–30	7.1 µg/m³	1h	5

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