What is the air quality trend in Islip?

Over the past 8 days, Islip had an average AQI of 139 based on station measurements. The worst day was 2026-07-16 with AQI 167.

How is Islip air quality measured?

Air quality in Islip 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 Islip, United States

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

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

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

114h

PM2.5 Station

114h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-07-22	97	9–166	38.0 µg/m³	149.0	8h	2
2026-07-21	111	11–166	46.2 µg/m³	149.0	20h	2
2026-07-20	142	45–166	64.0 µg/m³	149.0	15h	1
2026-07-19	138	12–166	64.2 µg/m³	149.0	18h	1
2026-07-18	135	23–166	59.8 µg/m³	149.0	19h	1
2026-07-17	156	41–174	78.0 µg/m³	149.0	16h	1
2026-07-16	167	166–177	85.5 µg/m³	149.0	14h	1
2026-07-15	166	166–166	84.0 µg/m³	149.0	4h	1

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