What is the air quality trend in Piscataway?

Over the past 14 days, Piscataway had an average AQI of 56 based on station measurements. The worst day was 2026-07-17 with AQI 127.

How is Piscataway air quality measured?

Air quality in Piscataway 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 Piscataway, United States

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

335h

PM2.5 Station

335h · 5 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-21	52	36–88	13.2 µg/m³	23h	10
2026-07-20	43	29–67	10.6 µg/m³	24h	9
2026-07-19	55	37–74	14.7 µg/m³	24h	10
2026-07-18	108	25–155	38.2 µg/m³	24h	11
2026-07-17	127	64–198	56.7 µg/m³	24h	12
2026-07-16	104	32–161	37.8 µg/m³	24h	10
2026-07-15	61	38–110	17.6 µg/m³	24h	11
2026-07-14	39	30–55	9.5 µg/m³	24h	10
2026-07-13	34	25–44	8.1 µg/m³	24h	10
2026-07-12	38	29–54	9.0 µg/m³	24h	11
2026-07-11	39	17–53	9.4 µg/m³	24h	10
2026-07-10	38	18–52	9.0 µg/m³	24h	11
2026-07-09	31	20–53	7.4 µg/m³	24h	10
2026-07-08	25	19–38	6.0 µg/m³	24h	10

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