American Samoa · Urban PM2.5 Concentration (WHO)
6.42023
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 |
|---|---|---|---|---|---|
| American Samoa | 2010 | 6.696294421 | 2.640347167 | 16.846405356 | — |
| American Samoa | 2011 | 6.585928076 | 2.620208568 | 16.348487357 | — |
| American Samoa | 2012 | 6.863177693 | 2.770513712 | 17.67402675 | — |
| American Samoa | 2013 | 6.972455659 | 2.941487867 | 17.374390843 | — |
| American Samoa | 2014 | 6.839694075 | 2.667202681 | 16.565528612 | — |
| American Samoa | 2015 | 7.039705991 | 2.899540501 | 17.854562103 | — |
| American Samoa | 2016 | 6.795956368 | 2.921998911 | 17.039989368 | — |
| American Samoa | 2017 | 6.666742045 | 2.773911549 | 17.427371732 | — |
| American Samoa | 2018 | 6.668060556 | 3.002790847 | 16.972207989 | — |
| American Samoa | 2019 | 6.699832519 | 3.062068559 | 18.239296391 | — |
| American Samoa | 2020 | 6.704173749 | 2.887963841 | 20.336356887 | — |
| American Samoa | 2021 | 6.57763057 | 2.725380371 | 18.795964398 | — |
| American Samoa | 2022 | 7.304468681 | 3.103782193 | 20.605158227 | — |
| American Samoa | 2023 | 6.362564047 | 2.71339844 | 19.160075806 | — |
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.