What is the air quality trend in Uniondale?

Over the past 15 days, Uniondale had an average AQI of 64 based on station measurements. The worst day was 2026-07-16 with AQI 125.

How is Uniondale air quality measured?

Air quality in Uniondale 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 Uniondale, United States

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

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

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

335h

PM2.5 Station

335h · 2 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-22	42	18–77	11.1 µg/m³	8h	8
2026-07-21	60	38–90	17.1 µg/m³	24h	8
2026-07-20	60	25–93	17.5 µg/m³	24h	7
2026-07-19	75	42–133	23.5 µg/m³	24h	7
2026-07-18	119	75–158	43.7 µg/m³	24h	7
2026-07-17	123	55–186	54.8 µg/m³	24h	7
2026-07-16	125	72–180	48.9 µg/m³	24h	7
2026-07-15	96	39–165	35.5 µg/m³	24h	7
2026-07-14	63	30–127	18.5 µg/m³	24h	7
2026-07-13	40	21–94	10.4 µg/m³	24h	5
2026-07-12	37	19–49	8.8 µg/m³	24h	8
2026-07-11	39	19–52	9.4 µg/m³	24h	8
2026-07-10	28	20–42	6.7 µg/m³	24h	9
2026-07-09	29	22–52	7.0 µg/m³	24h	8
2026-07-08	25	17–33	6.1 µg/m³	15h	7

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