Nigeria · Urban PM2.5 Concentration (WHO)
54.72023
Unit: micrograms per cubic metre. Publisher measure: Concentrations of fine particulate matter (PM2.5).
Annual population-weighted PM2.5 concentration in urban areas, matching WHO SDG11.6.2 metadata; label urban scope explicitly.
Measurement basis: model-based estimate.
Displayed values are rounded, with extra precision when needed to keep a positive estimate positive. Downloads retain the full numeric estimate and the publisher's original display text separately.
A “<” sign means strictly below the stated number. Numeric readings and uncertainty endpoints keep their own comparison signs. A number without a sign does not establish certainty or an observed outcome.
World Health Organization (Global Health Observatory); retrieved 2026-09-07. Retrieval time is separate from an official publisher release vintage.
Download this immutable source capture · Source and coverage corrections
One row per country, indicator and year, with raw values, source links and reuse notices. Thresholds have an empty numeric value and separate number/operator fields; value_kind distinguishes upper bounds from absent readings.
History and uncertainty
Charts plot numeric readings. Reported upper bounds create gaps; their values, uncertainty endpoints and source notes remain available in the table and downloads.
Reported estimates and uncertainty · 14 rows
Each comparison sign applies to its own reading or uncertainty endpoint. Values retain source precision. “Not reported” identifies an absent reading or uncertainty endpoint in this source capture.
| Country | Year | Reading | Lower endpoint | Upper endpoint | Publisher note |
|---|---|---|---|---|---|
| Nigeria | 2010 | 44.945029447 | 31.933319171 | 66.323056901 | — |
| Nigeria | 2011 | 48.209234719 | 34.414942686 | 71.221784463 | — |
| Nigeria | 2012 | 48.618348556 | 35.013338735 | 71.730257323 | — |
| Nigeria | 2013 | 44.584887503 | 31.882753075 | 65.178118934 | — |
| Nigeria | 2014 | 45.648432884 | 32.641899087 | 66.654100933 | — |
| Nigeria | 2015 | 56.46067945 | 39.948222004 | 84.245118224 | — |
| Nigeria | 2016 | 54.506606194 | 38.922823611 | 80.860185831 | — |
| Nigeria | 2017 | 53.302189159 | 38.286402927 | 79.017130907 | — |
| Nigeria | 2018 | 51.224148774 | 36.96378612 | 75.229959202 | — |
| Nigeria | 2019 | 47.813709441 | 34.419470022 | 70.27659527 | — |
| Nigeria | 2020 | 53.670038189 | 38.839043555 | 79.288392008 | — |
| Nigeria | 2021 | 53.83696066 | 38.684249245 | 79.796683187 | — |
| Nigeria | 2022 | 54.916740283 | 39.153195715 | 81.515018197 | — |
| Nigeria | 2023 | 54.698757871 | 39.162804145 | 80.730422164 | — |
One row per country, indicator and year, with raw values, source links and reuse notices. Thresholds have an empty numeric value and separate number/operator fields; value_kind distinguishes upper bounds from absent readings.