What is the air quality trend in South Valley?

Over the past 18 days, South Valley had an average AQI of 30 based on station measurements. The worst day was with AQI .

How is South Valley air quality measured?

Air quality in South Valley 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 South Valley, United States

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

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

Current AQI
Good

48 Hours 7 Days 14 Days 20 Days

Air Quality Index Trend

342h

PM2.5 Trend

342h · 6 stations

Daily Summary

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-04-12	24	23–25	5.8 µg/m³	17h	6
2026-04-11	26	23–32	6.2 µg/m³	24h	6
2026-04-10	30	23–43	7.3 µg/m³	24h	6
2026-04-09	27	22–31	6.4 µg/m³	16h	6
2026-04-08	24	23–25	5.8 µg/m³	8h	6
2026-04-07	24	20–28	5.8 µg/m³	24h	6
2026-04-06	29	26–33	7.0 µg/m³	18h	6
2026-04-04	32	27–39	7.7 µg/m³	14h	6
2026-04-03	27	23–30	6.4 µg/m³	24h	6
2026-04-02	29	23–44	7.0 µg/m³	21h	6
2026-04-01	34	24–48	8.1 µg/m³	21h	6
2026-03-31	34	32–37	8.1 µg/m³	21h	6
2026-03-30	39	34–47	9.3 µg/m³	10h	6
2026-03-29	37	34–40	8.9 µg/m³	23h	6
2026-03-28	34	29–37	8.1 µg/m³	22h	6
2026-03-27	36	24–47	8.7 µg/m³	24h	6
2026-03-26	32	22–40	7.6 µg/m³	24h	6
2026-03-25	28	22–38	6.6 µg/m³	7h	6

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