What is the air quality trend in Grand Boulevard?

Over the past 9 days, Grand Boulevard had an average AQI of 51 based on station measurements. The worst day was 2026-07-16 with AQI 142.

How is Grand Boulevard air quality measured?

Air quality in Grand Boulevard 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 Grand Boulevard, United States

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

125h

PM2.5 Station

125h · 1 station

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-21	33	3–99	9.8 µg/m³	18h	1
2026-07-20	51	23–96	14.2 µg/m³	24h	1
2026-07-19	43	14–85	11.9 µg/m³	24h	1
2026-07-18	13	3–32	3.2 µg/m³	18h	1
2026-07-17	107	22–167	39.3 µg/m³	24h	1
2026-07-16	142	101–188	63.2 µg/m³	11h	1
2026-07-06	29	29–29	7.0 µg/m³	1h	275
2026-07-03	2	2–2	0.4 µg/m³	1h	1
2026-07-02	46	41–54	11.1 µg/m³	4h	69

Back to Grand Boulevard Air Quality