SmogRank / Poland / Świętokrzyskie

Air quality in Kielce

Świętokrzyskie, Poland. PM2.5 from 1 reference monitor, updated hourly.

15.2 µg/m³
Moderate

Latest hour (21:00 UTC), 1.0× the WHO 24-hour guideline.

Rank

24 h
–
not enough data
7 days
#346
of 2,333 · 12.4 µg/m³
30 days
#521
of 2,331 · 8.7 µg/m³
Year
#320
of 2,173 · 15.3 µg/m³

Why it ranks here

Seasonal. Over the past year its worst months were January, March, averaging up to 27.5 µg/m³ against 7.5 in its cleanest month. Seasonal peaks usually come from heating, crop burning, fire or dust seasons.

Based on Kielce's own measurements; causes are the usual kinds for a pattern like this, not a confirmed source.

Last 4 days, hour by hour

15302026-09-30 21:00 UTC: 15.2 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: 5.1 µg/m³2025-09-30: 8.3 µg/m³2025-10-01: 11.0 µg/m³2025-10-02: 17.0 µg/m³2025-10-03: 19.3 µg/m³2025-10-04: 13.8 µg/m³2025-10-05: 9.4 µg/m³2025-10-06: 9.8 µg/m³2025-10-07: 10.6 µg/m³2025-10-08: 28.0 µg/m³2025-10-09: 29.7 µg/m³2025-10-10: 9.0 µg/m³2025-10-11: 6.9 µg/m³2025-10-12: 8.1 µg/m³2025-10-13: 8.8 µg/m³2025-10-14: 14.0 µg/m³2025-10-15: no data2025-10-16: no data2025-10-17: no data2025-10-18: no data2025-10-19: 10.0 µg/m³2025-10-20: 19.4 µg/m³2025-10-21: 14.4 µg/m³2025-10-22: 19.7 µg/m³2025-10-23: 14.0 µg/m³2025-10-24: 6.7 µg/m³2025-10-25: 5.5 µg/m³2025-10-26: 4.6 µg/m³2025-10-27: 4.1 µg/m³2025-10-28: 4.7 µg/m³2025-10-29: 11.4 µg/m³2025-10-30: 9.5 µg/m³2025-10-31: 17.9 µg/m³2025-11-01: 22.3 µg/m³2025-11-02: 19.9 µg/m³2025-11-03: 19.7 µg/m³2025-11-04: 24.3 µg/m³2025-11-05: 30.8 µg/m³2025-11-06: no data2025-11-07: no data2025-11-08: 19.4 µg/m³2025-11-09: 21.4 µg/m³2025-11-10: 17.4 µg/m³2025-11-11: 27.7 µg/m³2025-11-12: 18.4 µg/m³2025-11-13: 19.7 µg/m³2025-11-14: 27.1 µg/m³2025-11-15: 13.7 µg/m³2025-11-16: 20.0 µg/m³2025-11-17: 19.7 µg/m³2025-11-18: 10.2 µg/m³2025-11-19: 22.5 µg/m³2025-11-20: 31.5 µg/m³2025-11-21: 30.9 µg/m³2025-11-22: 17.0 µg/m³2025-11-23: 16.1 µg/m³2025-11-24: 20.1 µg/m³2025-11-25: 14.5 µg/m³2025-11-26: 12.2 µg/m³2025-11-27: 9.4 µg/m³2025-11-28: no data2025-11-29: no data2025-11-30: no data2025-12-01: no data2025-12-02: 16.8 µg/m³2025-12-03: 12.3 µg/m³2025-12-04: 26.7 µg/m³2025-12-05: 23.4 µg/m³2025-12-06: 15.3 µg/m³2025-12-07: 22.6 µg/m³2025-12-08: 28.3 µg/m³2025-12-09: 15.5 µg/m³2025-12-10: 34.1 µg/m³2025-12-11: 19.8 µg/m³2025-12-12: 17.0 µg/m³2025-12-13: 27.5 µg/m³2025-12-14: 16.8 µg/m³2025-12-15: 24.4 µg/m³2025-12-16: 29.1 µg/m³2025-12-17: 32.4 µg/m³2025-12-18: 26.8 µg/m³2025-12-19: 55.0 µg/m³2025-12-20: 39.5 µg/m³2025-12-21: 27.2 µg/m³2025-12-22: 15.1 µg/m³2025-12-23: 11.6 µg/m³2025-12-24: 8.9 µg/m³2025-12-25: 18.7 µg/m³2025-12-26: 28.5 µg/m³2025-12-27: 15.2 µg/m³2025-12-28: 6.0 µg/m³2025-12-29: 13.0 µg/m³2025-12-30: 6.3 µg/m³2025-12-31: 9.2 µg/m³2026-01-01: 16.6 µg/m³2026-01-02: 7.2 µg/m³2026-01-03: 6.9 µg/m³2026-01-04: 11.0 µg/m³2026-01-05: 27.7 µg/m³2026-01-06: 62.6 µg/m³2026-01-07: no data2026-01-08: no data2026-01-09: 32.9 µg/m³2026-01-10: 20.2 µg/m³2026-01-11: 12.0 µg/m³2026-01-12: 19.8 µg/m³2026-01-13: 39.2 µg/m³2026-01-14: 40.0 µg/m³2026-01-15: 15.7 µg/m³2026-01-16: 21.4 µg/m³2026-01-17: 21.1 µg/m³2026-01-18: 17.1 µg/m³2026-01-19: 38.4 µg/m³2026-01-20: 61.7 µg/m³2026-01-21: 47.9 µg/m³2026-01-22: 53.0 µg/m³2026-01-23: 31.6 µg/m³2026-01-24: 26.8 µg/m³2026-01-25: 19.1 µg/m³2026-01-26: 25.1 µg/m³2026-01-27: 59.3 µg/m³2026-01-28: 27.0 µg/m³2026-01-29: 13.2 µg/m³2026-01-30: 13.7 µg/m³2026-01-31: 9.8 µg/m³2026-02-01: 9.4 µg/m³2026-02-02: 14.6 µg/m³2026-02-03: no data2026-02-04: 31.6 µg/m³2026-02-05: no data2026-02-06: no data2026-02-07: 34.0 µg/m³2026-02-08: 18.1 µg/m³2026-02-09: 9.3 µg/m³2026-02-10: 20.9 µg/m³2026-02-11: 11.8 µg/m³2026-02-12: 10.8 µg/m³2026-02-13: no data2026-02-14: 9.9 µg/m³2026-02-15: 11.0 µg/m³2026-02-16: 15.4 µg/m³2026-02-17: 28.5 µg/m³2026-02-18: 32.6 µg/m³2026-02-19: no data2026-02-20: no data2026-02-21: no data2026-02-22: no data2026-02-23: no data2026-02-24: no data2026-02-25: 10.7 µg/m³2026-02-26: 26.2 µg/m³2026-02-27: 30.2 µg/m³2026-02-28: 31.4 µg/m³2026-03-01: 26.7 µg/m³2026-03-02: 21.7 µg/m³2026-03-03: 42.9 µg/m³2026-03-04: 43.0 µg/m³2026-03-05: 26.1 µg/m³2026-03-06: 33.7 µg/m³2026-03-07: 37.7 µg/m³2026-03-08: 36.2 µg/m³2026-03-09: 17.1 µg/m³2026-03-10: 22.3 µg/m³2026-03-11: 24.3 µg/m³2026-03-12: 25.8 µg/m³2026-03-13: 25.7 µg/m³2026-03-14: 17.4 µg/m³2026-03-15: 21.9 µg/m³2026-03-16: 28.2 µg/m³2026-03-17: 26.7 µg/m³2026-03-18: 22.4 µg/m³2026-03-19: 36.0 µg/m³2026-03-20: 32.4 µg/m³2026-03-21: 18.3 µg/m³2026-03-22: 17.4 µg/m³2026-03-23: 25.1 µg/m³2026-03-24: 40.3 µg/m³2026-03-25: 36.8 µg/m³2026-03-26: 8.2 µg/m³2026-03-27: 9.1 µg/m³2026-03-28: 14.2 µg/m³2026-03-29: 20.4 µg/m³2026-03-30: 20.4 µg/m³2026-03-31: 13.1 µg/m³2026-04-01: 10.1 µg/m³2026-04-02: 10.7 µg/m³2026-04-03: 20.2 µg/m³2026-04-04: 24.9 µg/m³2026-04-05: 11.3 µg/m³2026-04-06: 5.4 µg/m³2026-04-07: 6.9 µg/m³2026-04-08: 8.5 µg/m³2026-04-09: 12.7 µg/m³2026-04-10: 15.0 µg/m³2026-04-11: 24.8 µg/m³2026-04-12: 20.5 µg/m³2026-04-13: 8.2 µg/m³2026-04-14: no data2026-04-15: no data2026-04-16: no data2026-04-17: no data2026-04-18: no data2026-04-19: no data2026-04-20: no data2026-04-21: no data2026-04-22: no data2026-04-23: no data2026-04-24: no data2026-04-25: no data2026-04-26: no data2026-04-27: no data2026-04-28: no data2026-04-29: no data2026-04-30: no data2026-05-01: no data2026-05-02: no data2026-05-03: no data2026-05-04: no data2026-05-05: no data2026-05-06: no data2026-05-07: no data2026-05-08: no data2026-05-09: no data2026-05-10: no data2026-05-11: no data2026-05-12: no data2026-05-13: no data2026-05-14: no data2026-05-15: no data2026-05-16: no data2026-05-17: no data2026-05-18: no data2026-05-19: no data2026-05-20: no data2026-05-21: no data2026-05-22: no data2026-05-23: no data2026-05-24: no data2026-05-25: no data2026-05-26: no data2026-05-27: no data2026-05-28: no data2026-05-29: no data2026-05-30: no data2026-05-31: no data2026-06-01: no data2026-06-02: no data2026-06-03: 10.9 µg/m³2026-06-04: 9.1 µg/m³2026-06-05: 10.0 µg/m³2026-06-06: no data2026-06-07: no data2026-06-08: no data2026-06-09: no data2026-06-10: no data2026-06-11: no data2026-06-12: 7.5 µg/m³2026-06-13: no data2026-06-14: 3.5 µg/m³2026-06-15: 3.5 µg/m³2026-06-16: 6.1 µg/m³2026-06-17: 10.4 µg/m³2026-06-18: 9.4 µg/m³2026-06-19: 10.2 µg/m³2026-06-20: 9.7 µg/m³2026-06-21: 16.8 µg/m³2026-06-22: 16.1 µg/m³2026-06-23: 6.7 µg/m³2026-06-24: 5.9 µg/m³2026-06-25: 10.1 µg/m³2026-06-26: 11.4 µg/m³2026-06-27: 9.6 µg/m³2026-06-28: 17.0 µg/m³2026-06-29: 20.6 µg/m³2026-06-30: 12.5 µg/m³2026-07-01: 14.9 µg/m³2026-07-02: 8.8 µg/m³2026-07-03: 7.9 µg/m³2026-07-04: 4.8 µg/m³2026-07-05: 4.6 µg/m³2026-07-06: no data2026-07-07: 5.8 µg/m³2026-07-08: 4.7 µg/m³2026-07-09: 5.5 µg/m³2026-07-10: 4.8 µg/m³2026-07-11: 6.0 µg/m³2026-07-12: 6.0 µg/m³2026-07-13: 12.7 µg/m³2026-07-14: 16.0 µg/m³2026-07-15: 12.3 µg/m³2026-07-16: 13.9 µg/m³2026-07-17: 14.3 µg/m³2026-07-18: 9.8 µg/m³2026-07-19: 11.3 µg/m³2026-07-20: 7.3 µg/m³2026-07-21: 3.7 µg/m³2026-07-22: 4.4 µg/m³2026-07-23: 5.9 µg/m³2026-07-24: 4.6 µg/m³2026-07-25: 6.7 µg/m³2026-07-26: 6.9 µg/m³2026-07-27: 7.0 µg/m³2026-07-28: 4.4 µg/m³2026-07-29: 6.7 µg/m³2026-07-30: 8.3 µg/m³2026-07-31: 13.2 µg/m³2026-08-01: 14.2 µg/m³2026-08-02: 9.0 µg/m³2026-08-03: 11.5 µg/m³2026-08-04: 18.0 µg/m³2026-08-05: no data2026-08-06: 13.3 µg/m³2026-08-07: 8.4 µg/m³2026-08-08: 5.3 µg/m³2026-08-09: 5.4 µg/m³2026-08-10: 7.2 µg/m³2026-08-11: 5.4 µg/m³2026-08-12: 4.1 µg/m³2026-08-13: 5.2 µg/m³2026-08-14: 4.8 µg/m³2026-08-15: 6.7 µg/m³2026-08-16: 10.0 µg/m³2026-08-17: 8.2 µg/m³2026-08-18: 4.1 µg/m³2026-08-19: 8.0 µg/m³2026-08-20: 5.3 µg/m³2026-08-21: 6.9 µg/m³2026-08-22: 4.3 µg/m³2026-08-23: 3.3 µg/m³2026-08-24: 4.9 µg/m³2026-08-25: 5.8 µg/m³2026-08-26: 7.9 µg/m³2026-08-27: 8.2 µg/m³2026-08-28: 8.6 µg/m³2026-08-29: 7.1 µg/m³2026-08-30: 6.5 µg/m³2026-08-31: 6.1 µg/m³2026-09-01: 5.4 µg/m³2026-09-02: 8.0 µg/m³2026-09-03: 8.7 µg/m³2026-09-04: 6.2 µg/m³2026-09-05: 2.9 µg/m³2026-09-06: 4.0 µg/m³2026-09-07: 7.1 µg/m³2026-09-08: 8.6 µg/m³2026-09-09: 9.9 µg/m³2026-09-10: 5.0 µg/m³2026-09-11: 7.9 µg/m³2026-09-12: 7.0 µg/m³2026-09-13: no data2026-09-14: 10.8 µg/m³2026-09-15: no data2026-09-16: 10.2 µg/m³2026-09-17: 8.9 µg/m³2026-09-18: 9.5 µg/m³2026-09-19: 12.3 µg/m³2026-09-20: 9.8 µg/m³2026-09-21: 4.1 µg/m³2026-09-22: 4.5 µg/m³2026-09-23: 5.2 µg/m³2026-09-24: 8.6 µg/m³2026-09-25: 10.2 µg/m³2026-09-26: 15.1 µg/m³2026-09-27: 13.5 µg/m³2026-09-28: 14.7 µg/m³2026-09-29: 13.4 µg/m³2026-09-30: 11.5 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

120 of 282 measured days were over the WHO 24-hour guideline.

Daily world rank

#1#2151OctNovDecJanFebMarAprMayJunJulAugSep

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

2026 against 2025, month by month

15Jan 2025: 28.1 µg/m³Jan 2026: 27.5 µg/m³JanFeb 2025: 38.0 µg/m³Feb 2026: 19.8 µg/m³FebMar 2025: 23.0 µg/m³Mar 2026: 25.5 µg/m³MarApr 2025: 10.1 µg/m³Apr 2026: 13.8 µg/m³AprMay 2025: 8.9 µg/m³MayJun 2025: 8.9 µg/m³Jun 2026: 10.3 µg/m³JunJul 2025: 8.3 µg/m³Jul 2026: 8.1 µg/m³JulAug 2025: 8.4 µg/m³Aug 2026: 7.5 µg/m³AugSep 2025: 9.5 µg/m³Sep 2026: 8.7 µg/m³SepOct 2025: 12.5 µg/m³OctNov 2025: 20.2 µg/m³NovDec 2025: 21.4 µg/m³Dec

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

This week against past years

This weekThis week: 12.4 µg/m³12.420252025: 6.9 µg/m³6.920242024: 9.0 µg/m³9.020232023: 15.0 µg/m³15.0

Mean PM2.5 for 24 Sept to 30 Sept in each year. Dashed line: WHO 24-hour guideline.

Monitors

StationOperatorType
Kielce, ul. TargowaODC-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 Poland

Otwock 14.7Kalisz 12.2Radomsko 11.7Włocławek 11.2Radom 10.6Wrocław 10.4Starachowice 10.2Bielsko-Biala 10.2Pruszków 10.1Katowice 9.9Toruń 9.8Łódź 9.8

30-day averages, µg/m³. All of Poland →

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