Sri Lanka · Urban PM2.5 Concentration (WHO)
21.42023
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 |
|---|---|---|---|---|---|
| Sri Lanka | 2010 | 26.49069962 | 18.764940983 | 35.254089494 | — |
| Sri Lanka | 2011 | 25.324494748 | 18.199359485 | 35.957156439 | — |
| Sri Lanka | 2012 | 26.300381664 | 19.863630325 | 35.989801137 | — |
| Sri Lanka | 2013 | 25.313611597 | 18.884398253 | 34.627227524 | — |
| Sri Lanka | 2014 | 23.07127229 | 17.506678635 | 30.874647093 | — |
| Sri Lanka | 2015 | 23.594997913 | 17.987356661 | 32.244894049 | — |
| Sri Lanka | 2016 | 24.279604195 | 18.249822329 | 32.639506268 | — |
| Sri Lanka | 2017 | 25.112006615 | 18.543519279 | 34.705574906 | — |
| Sri Lanka | 2018 | 24.52463525 | 18.707876629 | 32.687789473 | — |
| Sri Lanka | 2019 | 22.55666533 | 17.235236191 | 30.394648434 | — |
| Sri Lanka | 2020 | 18.784201552 | 14.191089307 | 25.232089353 | — |
| Sri Lanka | 2021 | 19.73678885 | 14.915895463 | 26.910863184 | — |
| Sri Lanka | 2022 | 21.015603916 | 15.759049235 | 28.886966141 | — |
| Sri Lanka | 2023 | 21.43609662 | 16.352734571 | 28.882022873 | — |
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.