Air quality in Eti Osa, Lagos State, Nigeria today

Mr. Duck’s Air Quality Score

Unhealthy air today for Eti Osa, Lagos State, Nigeria

⚠️ 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 overall air quality today in Eti Osa, Lagos State, Nigeria is classified as Unhealthy. The main pollutant identified is PM2.5 (fine particles). PM2.5 refers to particulate matter with a diameter of 2.5 micrometers or less that can stay airborne for extended periods. The most recent PM2.5 reading is 81.6 µg/m³, derived from 15 valid measurements recorded during the latest sampling period and shown via OpenAQ. No PM10 data are currently available for this location. This concentration is higher than typical background levels and reflects the current monitoring snapshot for the city.

The dataset includes 15 observations. 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 Eti Osa pulls information from five monitoring stations and contains twenty‑one individual rows of observations. All five pollutants measured by the OpenAQ network are present: PM1, PM2.5, relative humidity, temperature and the particle count UM003. The most recent readings for each pollutant were recorded on 2026‑02‑10 22:00 UTC, which places the newest data comfortably within the last thirty days. In total, fifteen rows fall into the “updated within 30 days” bucket while six rows are older than thirty days; there are no entries from today, the past three days or the past week.

PM2.5 values span from a low of 0.9 µg/m³ up to a high of 81.59 µg/m³, with a median of 35.13 µg/m³ and the central eighty‑percent of observations ranging between 1.63 µg/m³ (10th percentile) and 73.36 µg/m³ (90th percentile). PM1 shows a similar spread, ranging from 0.895 µg/m³ to 56.70 µg/m³, a median of 32.56 µg/m³ and a 10‑90 percentile band of 7.50 µg/m³ to 52.35 µg/m³. Relative humidity measurements vary between 46.61 % and 93.85 %, with a median of 56.36 % and most values (10th‑90th percentile) falling between 49.46 % and 82.67 %. Temperature is clustered between 29.15 °C and 35.27 °C, median 29.87 °C, with the bulk of data (10th‑90th percentile) from 29.22 °C to 33.79 °C. The particle count UM003 ranges widely from 261.98 to 4 098.63 particles/cm³, median 2 390.12 particles/cm³, and the central distribution lies between 600.76 and 3 885.74 particles/cm³.

These figures illustrate that while the dataset captures a full suite of pollutants, the observations are unevenly distributed across time, with a modest portion of older rows. The ranges, especially for PM2.5 and UM003, indicate considerable variability across the city, underscoring that air‑quality conditions can differ markedly by location and moment.

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 dataset for Eti Osa includes 15 valid measurements and is updated within 30 days. The most recent data were recorded on 2026-02-10T22:00:00+00:00. This snapshot reflects conditions at the time of collection, but air quality can vary by location and time within the city, so values may differ across neighborhoods or at other moments.

OpenAQ station rows