SmogRank / Countries / Romania

Most polluted cities in Romania

20 measured cities ranked by PM2.5, last 7 days. Worst: Târgu Mureş at 19.2 µg/m³, #164 in the world.

#City µg/m³
1Târgu Mureş low-cost sensorsMureș County
19.2
2Suceava Suceava
15.6
3Sighetu Marmaţiei Maramureş
13.0
4Dej Cluj County
11.7
5Calafat Dolj
11.7
6Târgu Jiu Gorj County
11.0
7Iaşi Iași County
10.4
8Craiova Dolj
10.0
9Piteşti Arges
9.9
10Codlea Brașov County
9.7
11Baia Mare Maramureş
8.9
12Timişoara Timiș County
8.8
13Cluj-Napoca Cluj County
8.7
14Braşov Brașov County
8.5
15Popeşti-Leordeni Ilfov
8.1
16Zalău Sălaj County
7.8
17Buftea Ilfov
7.6
18Voluntari Ilfov
6.9
19Bucharest Bucharest
6.9
20Piatra Neamţ Neamț County
6.8
Good 0–9.0Moderate 9.1+Unhealthy for sensitive groups 35.5+Unhealthy 55.5+Very unhealthy 125.5+Hazardous 225.5+No data

Estimated: cities without a monitor

Romania cities we can't measure, with model estimates for the last 7 days. Listed by population, not ranked: estimates aren't precise enough to rank. Model estimates from the Copernicus Atmosphere Monitoring Service (CAMS), adjusted to measured cities nearby where there are any. Adjusted, a single day lands within ×1.5 of what a monitor would read about two times in three; unadjusted, it can be off by half or double. Treat them as a guide, not a measurement.

City7-day estimateBand
Constanţa estimated≈ 6 µg/m³Good
Galaţi estimated≈ 6 µg/m³Good
Oradea estimated≈ 7 µg/m³Good
Ploieşti estimated≈ 9 µg/m³Good
Arad estimated≈ 12 µg/m³Moderate
Brăila estimated≈ 6 µg/m³Good
Bacău estimated≈ 8 µg/m³Good
Sibiu estimated≈ 13 µg/m³Moderate
Satu Mare estimated≈ 8 µg/m³Good
Buzău estimated≈ 6 µg/m³Good
Râmnicu Vâlcea estimated≈ 9 µg/m³Good
Botoşani estimated≈ 11 µg/m³Moderate
Reşiţa estimated≈ 10 µg/m³Moderate
Drobeta-Turnu Severin estimated≈ 13 µg/m³Moderate
Bistriţa estimated≈ 8 µg/m³Good
Hunedoara estimated≈ 12 µg/m³Moderate
Roman estimated≈ 9 µg/m³Moderate
Bârlad estimated≈ 7 µg/m³Good
Deva estimated≈ 10 µg/m³Moderate
Târgovişte estimated≈ 9 µg/m³Good
Focșani estimated≈ 7 µg/m³Good
Tulcea estimated≈ 5 µg/m³Good
Alba Iulia estimated≈ 10 µg/m³Moderate
Slatina estimated≈ 9 µg/m³Good
Vaslui estimated≈ 7 µg/m³Good
Giurgiu estimated≈ 7 µg/m³Good
Mediaş estimated≈ 11 µg/m³Moderate
Sfântu Gheorghe estimated≈ 7 µg/m³Good
Paşcani estimated≈ 10 µg/m³Moderate
Petroşani estimated≈ 12 µg/m³Moderate
Turda estimated≈ 10 µg/m³Moderate
Medgidia estimated≈ 5 µg/m³Good
Lugoj estimated≈ 11 µg/m³Moderate
Câmpina estimated≈ 7 µg/m³Good
Slobozia estimated≈ 7 µg/m³Good
Tecuci estimated≈ 7 µg/m³Good
Alexandria estimated≈ 8 µg/m³Good
Mangalia estimated≈ 5 µg/m³Good
Râmnicu Sărat estimated≈ 7 µg/m³Good
Odorheiu Secuiesc estimated≈ 8 µg/m³Good

Regions

Brașov County 2Bucharest 1Cluj County 2Dolj 2Gorj County 1Iași County 1Ilfov 3Maramureş 2Mureș County 1Neamț County 1Sălaj County 1Suceava 1Timiș County 1

Updated 2026-10-01 09:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.