Air quality in Delhi, India today

Mr. Duck’s Air Quality Score

Very unhealthy air today for Delhi, India

⚠️ 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 Delhi is classified as Very Unhealthy today. The primary pollutant identified is PM2.5, with a measured concentration of 183.59 µg/m³ based on six valid observations reported through OpenAQ.

No additional pollutants are listed for this assessment. 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 Delhi air‑quality dataset pulls measurements from OpenAQ across 41 monitoring stations and a total of 479 individual rows. It includes readings for carbon monoxide (CO), nitrogen oxides (NO, NO₂, NOX), ozone (O₃), particulate matter of three size fractions (PM1, PM2.5, PM10), relative humidity, sulfur dioxide (SO₂), temperature, an additional sensor labelled UM003, wind direction and wind speed. Only a handful of the rows are recent: six entries were recorded within the last three days, one is classified as old, and the remaining 472 have no timestamp information, meaning that for most pollutants the exact timing of the measurement is unknown.

For the pollutants with explicit values, the newest data points are from early February 2026. The latest PM2.5 reading comes from GK1 (Oberoi Terrace) at 183.59 µg/m³, recorded on 2026‑02‑10 16:00 UTC; the median PM2.5 across all rows is 100.5 µg/m³ with a minimum of 27 µg/m³ and a maximum of 446.73 µg/m³, showing a wide spread. PM10 has its most recent value from 2025‑01‑13 23:00 UTC at the same station (238.03 µg/m³), a median of 239.52 µg/m³, and values ranging from 0 to 577 µg/m³. Relative humidity’s latest entry is also from GK1 on 2026‑02‑10 16:00 UTC at 57.06 % (median 76.5 %, range 0–97 %). Temperature was last updated at the same time, reporting 19.57 °C (median 15.05 °C, range 0–32.12 °C). Wind direction and ozone have no recent timestamps, and their latest values are not available in the current feed.

Overall, the dataset provides a broad chemical profile for Delhi but is unevenly populated: while particulate matter, humidity and temperature have fresh, station‑specific entries, many other pollutants such as CO, SO₂, NO, NOX, O₃, wind speed and UM003 lack recent timestamps or any reported values at all. Consequently, the picture of air quality can differ markedly across locations and times, and users should keep in mind that most rows are timestamp‑unknown when interpreting these figures.

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 reflect six valid measurements and were refreshed recently, with the latest update recorded on 2026‑02‑10 at 16:00 UTC; the dataset is considered “Updated within 3 days.” This snapshot provides a brief view of Delhi’s air quality at that moment, but conditions can differ across neighbourhoods and change throughout the day.

OpenAQ station rows