SmogRank / Bosnia and Herzegovina / Srpska

Air quality in Prijedor

Srpska, Bosnia and Herzegovina. PM2.5 from 1 reference monitor, updated hourly.

22.0 µg/m³
Moderate

Latest hour (03:00 UTC), 1.5× the WHO 24-hour guideline.

Rank

24 h
–
not enough data
7 days
#173
of 2,330 · 18.5 µg/m³
30 days
#247
of 2,327 · 14.4 µg/m³
Year
–
not enough data

Why it ranks here

Likely fire smoke. On Sep 29, when Prijedor averaged 26.2 µg/m³, NASA satellites detected 65 fires within 300 km (3 within 100 km). Smoke from those fires is a likely contributor; we don't check which way the wind blew, and mapped smoke can be high above the ground.

Based on Prijedor's own measurements, with fire detections from NASA FIRMS and smoke maps from NOAA HMS; causes are the usual kinds for a pattern like this, not a confirmed source.

Last 4 days, hour by hour

15302026-09-30 23:00 UTC: 21.8 µg/m³2026-10-01 00:00 UTC: 21.3 µg/m³2026-10-01 01:00 UTC: 21.0 µg/m³2026-10-01 02:00 UTC: 26.7 µg/m³2026-10-01 03:00 UTC: 22.0 µg/m³Sep 28Sep 29Sep 30Oct 1

Times in UTC. Dashed line: WHO 24-hour guideline (15 µg/m³).

Every day for a year

SepNovDecJanFebMarAprMayJunJulAugSepMonWedFri2025-09-29: no data2025-09-30: no data2025-10-01: no data2025-10-02: no data2025-10-03: no data2025-10-04: no data2025-10-05: no data2025-10-06: no data2025-10-07: no data2025-10-08: no data2025-10-09: no data2025-10-10: no data2025-10-11: no data2025-10-12: no data2025-10-13: no data2025-10-14: no data2025-10-15: no data2025-10-16: no data2025-10-17: no data2025-10-18: no data2025-10-19: no data2025-10-20: no data2025-10-21: no data2025-10-22: no data2025-10-23: no data2025-10-24: no data2025-10-25: no data2025-10-26: no data2025-10-27: no data2025-10-28: no data2025-10-29: no data2025-10-30: no data2025-10-31: no data2025-11-01: no data2025-11-02: no data2025-11-03: no data2025-11-04: no data2025-11-05: no data2025-11-06: no data2025-11-07: no data2025-11-08: no data2025-11-09: no data2025-11-10: no data2025-11-11: no data2025-11-12: no data2025-11-13: no data2025-11-14: no data2025-11-15: no data2025-11-16: no data2025-11-17: no 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data2026-06-14: no data2026-06-15: no data2026-06-16: no data2026-06-17: no data2026-06-18: no data2026-06-19: no data2026-06-20: no data2026-06-21: no data2026-06-22: no data2026-06-23: no data2026-06-24: no data2026-06-25: no data2026-06-26: no data2026-06-27: no data2026-06-28: no data2026-06-29: no data2026-06-30: no data2026-07-01: no data2026-07-02: no data2026-07-03: no data2026-07-04: no data2026-07-05: no data2026-07-06: no data2026-07-07: no data2026-07-08: no data2026-07-09: no data2026-07-10: no data2026-07-11: no data2026-07-12: no data2026-07-13: no data2026-07-14: no data2026-07-15: no data2026-07-16: no data2026-07-17: no data2026-07-18: no data2026-07-19: no data2026-07-20: no data2026-07-21: no data2026-07-22: no data2026-07-23: no data2026-07-24: no data2026-07-25: no data2026-07-26: no data2026-07-27: no data2026-07-28: no data2026-07-29: no data2026-07-30: no data2026-07-31: no data2026-08-01: no data2026-08-02: no data2026-08-03: no data2026-08-04: no data2026-08-05: no data2026-08-06: no data2026-08-07: no data2026-08-08: no data2026-08-09: no data2026-08-10: no data2026-08-11: no data2026-08-12: no data2026-08-13: no data2026-08-14: 14.2 µg/m³2026-08-15: no data2026-08-16: no data2026-08-17: no data2026-08-18: no data2026-08-19: no data2026-08-20: no data2026-08-21: no data2026-08-22: no data2026-08-23: no data2026-08-24: no data2026-08-25: no data2026-08-26: no data2026-08-27: no data2026-08-28: no data2026-08-29: no data2026-08-30: no data2026-08-31: no data2026-09-01: 11.4 µg/m³2026-09-02: 13.5 µg/m³2026-09-03: 11.3 µg/m³2026-09-04: 22.0 µg/m³2026-09-05: 16.2 µg/m³2026-09-06: 13.3 µg/m³2026-09-07: 19.0 µg/m³2026-09-08: no data2026-09-09: 21.0 µg/m³2026-09-10: 11.0 µg/m³2026-09-11: 4.8 µg/m³2026-09-12: 7.3 µg/m³2026-09-13: no data2026-09-14: 7.9 µg/m³2026-09-15: 8.3 µg/m³2026-09-16: 11.8 µg/m³2026-09-17: no data2026-09-18: no data2026-09-19: no data2026-09-20: no data2026-09-21: no data2026-09-22: no data2026-09-23: 8.9 µg/m³2026-09-24: 12.9 µg/m³2026-09-25: 6.4 µg/m³2026-09-26: 15.5 µg/m³2026-09-27: 22.5 µg/m³2026-09-28: 24.7 µg/m³2026-09-29: 26.2 µg/m³2026-09-30: 21.1 µg/m³
Good 0–9.0Moderate 9.1+Unhealthy for sensitive groups 35.5+Unhealthy 55.5+Very unhealthy 125.5+Hazardous 225.5+No data

9 of 23 measured days were over the WHO 24-hour guideline.

Daily world rank

#1#1310Sep

Rank on each day's board (1 = most polluted city that day).

2026 against 2025, month by month

15JanFebMarAprMayJunJulAugSep 2026: 14.4 µg/m³SepOctNovDec

Faded bars: 2025. A month shows once it has 10 measured days.

Monitors

StationOperatorType
PRIJEDOR-AUTOMATSKA STANICAODC-BYEEAReference

The city's value is the median of its reference monitors each hour; low-cost sensors are listed but not counted when reference monitors exist. Data via OpenAQ; licences as listed. How we rank. Embed this on your site.

Other cities in Bosnia and Herzegovina

Trebinje 16.3Sarajevo 14.4Banja Luka 11.6

30-day averages, µg/m³. All of Bosnia and Herzegovina →

Updated 2026-10-01 06:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.