SmogRank / Romania / Neamț County / Piatra Neamţ
Piatra Neamţ, month by month
Piatra Neamţ has a measured daily mean on 267 days since 19 December 2025. Its worst month was January 2026, at 84 US AQI (26.6 µg/m³), 217th of 2,617 cities on that month's world ranking. Its cleanest was September 2026, at 37 US AQI (6.7 µg/m³).
Every month since 2025
The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales
Months without a mean, and why
1 month
| Month | Why |
|---|---|
| Dec 2025 | 13 of 31 days measured; a month needs 22. |
A day counts once 18 hours of it are measured; a month needs 70% of its days.
Piatra Neamţ's worst months
| Month | US AQI | World rank | Episode |
|---|---|---|---|
| January 2026 | 8426.6 µg/m³ | 217thof 2,617 | Europe, January and February 2026 |
| February 2026 | 7924.1 µg/m³ | 411thof 2,866 | Europe, January and February 2026 Romania, February 2026 |
| March 2026 | 6516.7 µg/m³ | 724thof 2,971 | – |
| April 2026 | 529.5 µg/m³ | 1,058thof 2,941 | – |
| August 2026 | 448.0 µg/m³ | 1,619thof 2,896 | – |
| June 2026 | 427.6 µg/m³ | 1,221stof 2,497 | – |
Monthly means over the days measured; finished months only. World rank: its place on that month's world ranking of every city with enough days. Each month opens that ranking.
Piatra Neamţ's worst days
| Day | US AQI | Episode |
|---|---|---|
| 15 Jan 2026 | 15155.5 µg/m³ | Europe, January and February 2026 |
| 14 Jan 2026 | 13448.9 µg/m³ | Europe, January and February 2026 |
| 16 Jan 2026 | 13248.0 µg/m³ | Europe, January and February 2026 |
| 4 Feb 2026 | 13047.3 µg/m³ | Europe, January and February 2026 |
| 19 Jan 2026 | 12545.4 µg/m³ | Europe, January and February 2026 |
| 21 Jan 2026 | 12545.4 µg/m³ | Europe, January and February 2026 |
| 19 Feb 2026 | 11842.3 µg/m³ | – |
| 12 Feb 2026 | 11641.7 µg/m³ | Europe, January and February 2026 Romania, February 2026 |
| 8 Feb 2026 | 11641.6 µg/m³ | Europe, January and February 2026 |
| 22 Jan 2026 | 11440.9 µg/m³ | Europe, January and February 2026 |
Daily means, the highest since 19 Dec 2025; the WHO's daily guideline is 15 µg/m³. Each date opens that day's world ranking, and each episode the bad-air spell it was part of.
Use this history
SmogRank, PM2.5 monthly and daily means, Piatra Neamţ, Romania, 19 Dec 2025 – 12 Oct 2026. Monitor data from EEA, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/ro/piatra-neamt/history (accessed 13 Oct 2026).
You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.
Piatra Neamţ now: the last 24 hours, its ranks today and the last 12 months day by day.
Updated 2026-10-13 04:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index. Some low-cost readings: Sensor.Community, ODbL (data and licence). Some readings: Uzhydromet (Uzbekistan's Hydrometeorological Service); Department of Environment, Nepal; Vietnam's government monitors; Aurassure; Umhverfisstofnun (Environment Agency of Iceland); RMCAB (Secretaría Distrital de Ambiente, Bogotá); Love My Air (City and County of Denver), no reuse terms published (why we use them).