What is the air quality trend in Florence?

Over the past 8 days, Florence had an average AQI of 42 based on station measurements. The worst day was 2026-07-17 with AQI 71.

How is Florence air quality measured?

Air quality in Florence 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 Florence, United States

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

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

Current AQI
Moderate CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

163h

PM2.5 Station

163h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-22	27	23–29	6.4 µg/m³	3h	2
2026-07-21	38	20–73	9.3 µg/m³	24h	2
2026-07-20	36	14–121	9.8 µg/m³	20h	2
2026-07-19	40	18–91	10.4 µg/m³	24h	2
2026-07-18	41	23–93	10.4 µg/m³	23h	2
2026-07-17	71	22–190	31.1 µg/m³	24h	3
2026-07-16	47	15–156	13.7 µg/m³	24h	2
2026-07-15	40	15–163	11.4 µg/m³	21h	2

Back to Florence Air Quality