What is the air quality trend in H Street NE?

Over the past 20 days, H Street NE had an average AQI of 25 based on station measurements. The worst day was 2026-10-02 with AQI 46.

How is H Street NE air quality measured?

Air quality in H Street NE 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 H Street NE, United States

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

Historical PM2.5 and AQI trend from monitoring stations near H Street NE, United States.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

478h

PM2.5 Station

478h · 20 stations

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-20	26	20–61	6.2 µg/m³	22h	18
2026-10-19	25	17–33	6.0 µg/m³	24h	21
2026-10-18	18	13–22	4.2 µg/m³	24h	18
2026-10-17	15	11–26	3.7 µg/m³	24h	19
2026-10-16	29	15–48	7.0 µg/m³	24h	20
2026-10-15	29	18–51	7.0 µg/m³	24h	21
2026-10-14	40	35–47	9.6 µg/m³	24h	20
2026-10-13	26	20–39	6.2 µg/m³	24h	20
2026-10-12	15	10–22	3.5 µg/m³	24h	20
2026-10-11	17	12–22	4.0 µg/m³	24h	22
2026-10-10	32	21–39	7.6 µg/m³	24h	20
2026-10-09	27	19–58	6.6 µg/m³	24h	21
2026-10-08	26	18–33	6.2 µg/m³	24h	23
2026-10-07	24	20–28	5.8 µg/m³	24h	21
2026-10-06	19	17–27	4.6 µg/m³	24h	22
2026-10-05	22	17–29	5.4 µg/m³	24h	24
2026-10-04	20	12–27	4.7 µg/m³	24h	22
2026-10-03	24	15–51	5.8 µg/m³	24h	24
2026-10-02	46	38–52	11.2 µg/m³	24h	26
2026-10-01	37	29–44	8.9 µg/m³	24h	24

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