What is the air quality trend in Reisterstown?

Over the past 15 days, Reisterstown had an average AQI of 47 based on station measurements. The worst day was 2026-07-17 with AQI 88.

How is Reisterstown air quality measured?

Air quality in Reisterstown 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 Reisterstown, United States

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

313h

PM2.5 Station

313h · 4 stations

Temperature GFS model

56pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-22	36	14–52	8.6 µg/m³	8h	4
2026-07-21	53	29–76	14.0 µg/m³	19h	4
2026-07-20	61	13–107	18.4 µg/m³	21h	3
2026-07-19	57	8–166	17.7 µg/m³	23h	3
2026-07-18	49	5–151	13.4 µg/m³	20h	4
2026-07-17	88	36–239	37.4 µg/m³	24h	4
2026-07-16	69	27–174	24.5 µg/m³	24h	4
2026-07-15	43	28–54	10.4 µg/m³	24h	5
2026-07-14	38	25–63	9.3 µg/m³	23h	4
2026-07-13	37	13–60	8.9 µg/m³	23h	4
2026-07-12	34	25–57	8.3 µg/m³	21h	4
2026-07-11	33	22–43	7.8 µg/m³	24h	4
2026-07-10	33	23–44	7.9 µg/m³	22h	4
2026-07-09	37	28–53	8.9 µg/m³	22h	5
2026-07-08	37	25–48	8.8 µg/m³	15h	5

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