Air quality in Meguro, Japan today

Mr. Duck’s Air Quality Score

Moderate air today for Meguro, Japan

⚠️ This website is currently under active development. Some data may be incomplete or temporarily inaccurate. For health-critical decisions, please verify information through official government or environmental sources.

Categories follow US EPA AQI breakpoints for PM (estimate from latest valid measurements; this project does not compute EPA NowCast/24-hour AQI yet).

This friendly indicator summarizes the latest city readings. For health guidance, please see: EPA AirNow or WHO.

Air quality today

The air quality in Meguro is currently classified as Moderate. The primary pollutant identified is PM2.5 (fine particles).

Measurements show a PM2.5 reference value of 16.0 µg/m³, based on thirteen valid observations collected via OpenAQ. This indicates that the concentration of fine particulate matter falls within the range associated with the Moderate category. This page is informational; for health guidance, use official sources such as EPA AirNow or WHO.

Latest sensor values

PM categories follow US EPA AQI breakpoints, shown here as an estimate derived from the latest valid measurements (this project does not compute EPA NowCast/24-hour AQI yet).

What the data includes

The dataset for Meguro contains measurements from a total of eighteen recorded rows across four monitoring sites. Sixteen of those rows have recent timestamps: thirteen were updated within the last three days, while five lack a known update time. The newest readings for most pollutants are from 2026‑02‑10 22:00 UTC.

All eight listed pollutants appear in the data set. For particulate matter, PM2.5 reaches a maximum of 16.0 µg/m³ (median 14.5 µg/m³) at the station on 柿の木坂１－１－４, while PM1 is only represented by a single record with a value of 7.0 µg/m³ and no timestamp. Nitrogen oxides show modest concentrations: NO varies between 0.006 and 0.017 ppm (median 0.006 ppm), NO₂ is consistently 0.028–0.030 ppm (median 0.03 ppm), and NOX spans 0.034 to 0.047 ppm (median 0.036 ppm), all recorded at the same柿の木坂 location on the same recent date. Carbon monoxide is reported from a different site, 青葉台３－６, with a single value of 0.5 ppm and the same timestamp as the other recent updates.

The coverage across pollutants is uneven: PM2.5, NO, NO₂ and NOX each have four recent rows, CO has only one, and PM1, relative humidity and temperature each appear in just one row with unknown freshness. Because several variables rely on a single, possibly outdated measurement, the snapshot may not capture spatial or temporal variations throughout Meguro. Users should keep in mind that conditions can differ by neighborhood and time of day, especially for those pollutants with limited or missing timestamp information.

Learn more about sources and filtering: About the data.

Trusted references: WHO (Air pollution) · US EPA AirNow · European Environment Agency (Air)

Latest sensor values (bars)

PM categories follow US EPA AQI breakpoints, shown here as an estimate derived from the latest valid measurements (this project does not compute EPA NowCast/24-hour AQI yet).

Data notes

The data shown for Meguro reflects 13 valid measurements and is marked as Updated within 3 days, with the most recent values recorded at 2026‑02‑10T22:00:00+00:00. This snapshot provides a current view of ambient air quality, but conditions can differ across neighborhoods and change throughout the day, so local variations may not be captured in these aggregate figures.

OpenAQ station rows