Air Pollution in Kolonie Welheim: Real-time Air Quality Index and smog alert.

The latest data Last 7 days
Current data from stations: Bottrop-Welheim
Locations: « Bottrop Kolonie Welheim
Pollution and air quality forecast for Kolonie Welheim. Today is Monday, May 19, 2025. The following air pollution values have been recorded for Kolonie Welheim:
  1. particulate matter (PM2.5) dust - 16 (Moderate)
  2. sulfur dioxide (SO2) - 1 (Good)
  3. ozone (O3) - 5 (Good)
  4. nitrogen dioxide (NO2) - 51 (Moderate)
  5. particulate matter (PM10) suspended dust - 20 (Moderate)
Real-time Air Quality Index (AQI) for Kolonie Welheim, Wednesday, January 17, 2024: 2.

air quality index: 1
AQI 2 Moderate

What is the air quality in Kolonie Welheim today? Is the air polluted in Kolonie Welheim?. Is there smog?

Today (Wednesday, January 17, 2024) air quality is moderate in Kolonie Welheim. Some pollutants in Kolonie Welheim may slightly affect very few hypersensitive individuals. Air pollutants in Kolonie Welheim may cause minor breathing discomfort to sensitive people.


What is the current level of PM2.5 in Kolonie Welheim? (particulate matter (PM2.5) dust)
Today's PM2.5 level is: 16 (Moderate) For comparison, the highest level of PM2.5 in Kolonie Welheim in the last 7 days was: 31 (Thursday, January 11, 2024) and the lowest: 10 (Tuesday, January 16, 2024).

What is the level of SO2 pollution? (sulfur dioxide (SO2))
1 (Good)

How is the O3 level today in Kolonie Welheim? (ozone (O3))
5 (Good)

How high is the level of NO2? (nitrogen dioxide (NO2))
51 (Moderate)

What is the level of PM10 today in Kolonie Welheim? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in Kolonie Welheim is: 20 (Moderate) The highest PM10 values usually occur in month: 22 (April 2020). The lowest value of particulate matter PM10 pollution in Kolonie Welheim is usually recorded in: September (4.5).



Current data Wednesday, January 17, 2024, 9:00 AM

PM2,5 16 (Moderate)

SO2 1 (Good)

13 (Good)

O3 5 (Good)

NO2 51 (Moderate)

PM10 20 (Moderate)

Data on air pollution from recent days in Kolonie Welheim

index 2024-01-10 2024-01-11 2024-01-12 2024-01-13 2024-01-14 2024-01-15 2024-01-16 2024-01-17
o3 15
Good		 13
Good		 8
Good		 18
Good		 28
Good		 45
Good		 39
Good		 21
Good
so2 5
Good		 3
Good		 3
Good		 2
Good		 2
Good		 5
Good		 5
Good		 4
Good
no2 37
Good		 36
Good		 39
Good		 31
Good		 16
Good		 21
Good		 26
Good		 36
Good
no 9
Good		 15
Good		 8
Good		 3
Good		 1
Good		 1
Good		 3
Good		 3
Good
pm25 23
Moderate		 31
Moderate		 28
Moderate		 21
Moderate		 20
Moderate		 11
Good		 10
Good		 13
Moderate
pm10 30
Moderate		 38
Moderate		 33
Moderate		 25
Moderate		 22
Moderate		 13
Good		 15
Good		 16
Good
data source »

Air pollution in Kolonie Welheim from September 2017 to May 2020

index 2020-05 2020-04 2020-03 2020-02 2020-01 2019-12 2019-10 2019-09 2019-07 2019-06 2019-05 2019-04 2019-03 2019-02 2019-01 2018-12 2018-11 2018-10 2018-09 2018-08 2018-07 2018-06 2018-05 2018-04 2018-03 2018-02 2018-01 2017-12 2017-11 2017-10 2017-09
o3 44 (Good) 43 (Good) 48 (Good) 48 (Good) 25 (Good) 26 (Good) 11 (Good) 12 (Good) 54 (Good) 49 (Good) 43 (Good) 43 (Good) 44 (Good) 11 (Good) 29 (Good) 28 (Good) 12 (Good) 16 (Good) 19 (Good) 31 (Good) 38 (Good) 37 (Good) 46 (Good) 48 (Good) 42 (Good) 34 (Good) 32 (Good) 25 (Good) 20 (Good) 27 (Good) 19 (Good)
no2 18 (Good) 22 (Good) 21 (Good) 20 (Good) 31 (Good) 20 (Good) 8 (Good) 6.5 (Good) 9.7 (Good) 17 (Good) 15 (Good) 22 (Good) 19 (Good) 39 (Good) 24 (Good) 22 (Good) 25 (Good) 23 (Good) 27 (Good) 24 (Good) 20 (Good) 18 (Good) 18 (Good) 21 (Good) 23 (Good) 30 (Good) 26 (Good) 27 (Good) 29 (Good) 23 (Good) 24 (Good)
pm10 16 (Good) 22 (Moderate) 16 (Good) 16 (Good) 20 (Moderate) 15 (Good) 5.5 (Good) 4.5 (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good) - (Good)
so2 5 (Good) 4.2 (Good) 4.7 (Good) 12 (Good) 4.7 (Good) 2.7 (Good) 5.3 (Good) 0.65 (Good) 1.8 (Good) 6.8 (Good) 2.8 (Good) 3.1 (Good) 6 (Good) 5.4 (Good) 5.5 (Good) 8.9 (Good) 8 (Good) 3.5 (Good) 3.2 (Good) 4 (Good) 3.5 (Good) 2.6 (Good) 3.8 (Good) 7.6 (Good) 8.1 (Good) 9.9 (Good) 14 (Good) 11 (Good) 9 (Good) 8.6 (Good) 3.4 (Good)
data source »

Bottrop-Welheim

Wednesday, January 17, 2024, 9:00 AM

PM2,5 16 (Moderate)

particulate matter (PM2.5) dust

SO2 1.4 (Good)

sulfur dioxide (SO2)

13 (Good)

index_name_no

O3 4.8 (Good)

ozone (O3)

NO2 51 (Moderate)

nitrogen dioxide (NO2)

PM10 20 (Moderate)

particulate matter (PM10) suspended dust

Bottrop-Welheim

index 2024-01-17 2024-01-16 2024-01-15 2024-01-14 2024-01-13 2024-01-12 2024-01-11 2024-01-10
o3 21 39 45 28 18 7.8 13 15
so2 3.9 4.9 4.6 2.1 1.5 2.9 3.1 5
no2 36 26 21 16 31 39 36 37
no 3.2 2.5 1 0.9 3.2 8.1 15 9.1
pm25 13 10 11 20 21 28 31 23
pm10 16 15 13 22 25 33 38 30

DENW021

index 2020-05 2020-04 2020-03 2020-02 2020-01 2019-12 2019-10 2019-09 2019-07 2019-06 2019-05 2019-04 2019-03 2019-02 2019-01 2018-12 2018-11 2018-10 2018-09 2018-08 2018-07 2018-06 2018-05 2018-04 2018-03 2018-02 2018-01 2017-12 2017-11 2017-10 2017-09
so2 5 4.2 4.7 12 4.7 2.7 5.3 0.65 1.8 6.8 2.8 3.1 6 5.4 5.5 8.9 8 3.5 3.2 4 3.5 2.6 3.8 7.6 8.1 9.9 14 11 9 8.6 3.4
no2 18 22 21 20 31 20 8 6.5 9.7 17 15 22 19 39 24 22 25 23 27 24 20 18 18 21 23 30 26 27 29 23 24
o3 44 43 48 48 25 26 11 12 54 49 43 43 44 11 29 28 12 16 19 31 38 37 46 48 42 34 32 25 20 27 19
pm10 16 22 16 16 20 15 5.5 4.5 - - - - - - - - - - - - - - - - - - - - - - -

* Pollution data source: https://openaq.org (EEA Germany) The data is licensed under CC-By 4.0