United States · Urban PM2.5 Concentration (WHO)
9.92023
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 |
|---|---|---|---|---|---|
| United States | 2010 | 9.44806448 | 9.240474446 | 9.644858286 | — |
| United States | 2011 | 9.348256052 | 9.159686874 | 9.511881679 | — |
| United States | 2012 | 9.098761656 | 8.909841121 | 9.287225179 | — |
| United States | 2013 | 8.917140327 | 8.753423627 | 9.115084511 | — |
| United States | 2014 | 8.886129412 | 8.689936811 | 9.050165667 | — |
| United States | 2015 | 8.554742138 | 8.378483724 | 8.701656293 | — |
| United States | 2016 | 7.795937501 | 7.647114676 | 7.940563492 | — |
| United States | 2017 | 8.130376408 | 7.967824036 | 8.273243462 | — |
| United States | 2018 | 8.395180723 | 8.242110831 | 8.585440297 | — |
| United States | 2019 | 7.555583826 | 7.407867685 | 7.733674205 | — |
| United States | 2020 | 7.945879503 | 7.816890174 | 8.130077417 | — |
| United States | 2021 | 8.343915319 | 8.178078759 | 8.507839437 | — |
| United States | 2022 | 8.044897646 | 7.833985914 | 8.311717875 | — |
| United States | 2023 | 9.949581551 | 9.709930998 | 10.258477491 | — |
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.