What is the air quality trend in Torrance?

Over the past 8 days, Torrance had an average AQI of 40 based on station measurements. The worst day was 2026-07-19 with AQI 52.

How is Torrance air quality measured?

Air quality in Torrance 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 Torrance, United States

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

168h

PM2.5 Station

168h · 3 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-07-22	21	12–25	5.1 µg/m³	2.4	4h	168
2026-07-21	35	26–52	8.4 µg/m³	4.9	24h	211
2026-07-20	48	36–55	11.6 µg/m³	8.0	24h	204
2026-07-19	52	41–179	15.4 µg/m³	8.5	24h	214
2026-07-18	41	35–43	9.7 µg/m³	6.3	24h	216
2026-07-17	45	36–54	10.8 µg/m³	9.7	24h	224
2026-07-16	40	36–49	9.7 µg/m³	6.3	24h	205
2026-07-15	39	22–44	9.5 µg/m³	6.3	20h	202

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