What is the air quality trend in Sebastian?

Over the past 7 days, Sebastian had an average AQI of 34 based on station measurements. The worst day was 2026-10-16 with AQI 48.

How is Sebastian air quality measured?

Air quality in Sebastian 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 Sebastian, United States

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

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

Current AQI
Good CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

115h

PM2.5 Station

115h · 2 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-20	43	11–151	11.7 µg/m³	17h	1
2026-10-19	27	13–46	6.5 µg/m³	18h	2
2026-10-18	26	15–63	6.5 µg/m³	14h	1
2026-10-17	23	12–38	5.6 µg/m³	19h	1
2026-10-16	48	5–176	18.0 µg/m³	16h	1
2026-10-15	46	13–171	15.4 µg/m³	14h	1
2026-10-14	31	10–64	7.8 µg/m³	17h	2

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