What is the air quality trend in Central Islip?

Over the past 8 days, Central Islip had an average AQI of 67 based on station measurements. The worst day was 2026-10-14 with AQI 73.

How is Central Islip air quality measured?

Air quality in Central 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 Central Islip, United States

Name: Central 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 Central Islip, United States.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

165h

PM2.5 Station

165h · 4 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-10-21	73	27–128	23.6 µg/m³	149.0	5h	4
2026-10-20	66	14–166	22.4 µg/m³	149.0	24h	3
2026-10-19	61	13–123	19.6 µg/m³	149.0	24h	3
2026-10-18	68	9–166	24.7 µg/m³	149.0	23h	3
2026-10-17	59	3–137	19.7 µg/m³	149.0	24h	3
2026-10-16	67	15–166	24.8 µg/m³	149.0	24h	3
2026-10-15	70	6–166	25.2 µg/m³	149.0	24h	3
2026-10-14	73	23–132	23.7 µg/m³	149.0	17h	2

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