Chesapeake vs East Hampton: PM2.5 compared

Over the last year, East Hampton's air was 16% more polluted than Chesapeake's: PM2.5 averaged 10.4 µg/m³ against 9.0, on the 117 days both cities were measured. East Hampton had the dirtier air on 52 of those days, Chesapeake on 65. East Hampton was over the WHO's daily guideline of 15 µg/m³ on 27 of them, Chesapeake on 8.

Right now

Chesapeake#776on the 24-hour board of 2,753, at 52 US AQI (9.7 µg/m³)

East Hampton#679on the 24-hour board of 2,753, at 53 US AQI (10.3 µg/m³)

The last year, day by day

Chesapeake

East Hampton

Each city's daily mean from 9 Oct 2025 to 8 Oct 2026, one stripe a day, coloured by band. A blank stripe is a day without a daily mean.

Month by month

Monthly means in µg/m³ over the days both cities were measured. Solid: Chesapeake. Faded: East Hampton. A month shows once both share 10 such days. Dashed line: the WHO daily guideline, 15 µg/m³.

Year by year

Year	Chesapeake	East Hampton	Days both measured	Days Chesapeake was worse
2026 so far	50	53	117	65
2023	35	36	55	24

Means in US AQI over the days both cities were measured that year; a year shows once they share 30 such days.

Each city's worst days

Chesapeake

17 Jul 202615459.1 µg/m³
18 Jul 20268024.6 µg/m³
4 Jul 20267019.2 µg/m³

East Hampton

17 Jul 202617995.8 µg/m³
18 Jul 202612344.6 µg/m³
20 Jul 20269432.3 µg/m³

Daily means in US AQI, with µg/m³ beside them, since the index stops at its top value, over the days both cities were measured in the last year. Each date opens that day's world board.

Compare either city with another

Chesapeake

Side by side with Mecca (United States's worst on 30 days), Gujranwala (the world's worst on 30 days).

East Hampton

Side by side with Poquoson (the nearest), Mecca (United States's worst on 30 days), Gujranwala (the world's worst on 30 days).

Use this page

SmogRank, PM2.5 daily means compared, Chesapeake and East Hampton, 9 Oct 2025 – 8 Oct 2026, smogrank.com/compare/us-chesapeake/us-east-hampton (accessed 9 Oct 2026).

You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.

The same rules as every SmogRank figure: reference monitors first, and a day counts with 18 measured hours. How we measure.

Updated 2026-10-09 12:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index. Some readings: Uzhydromet (Uzbekistan's Hydrometeorological Service); Department of Environment, Nepal; Vietnam's government monitors; Aurassure; Umhverfisstofnun (Environment Agency of Iceland); Love My Air (City and County of Denver), no reuse terms published (why we use them).