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  • United Kingdom
  • Cardiff
  • Caerdydd
Caerdydd
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Live

Caerdydd Air Quality Index (AQI) | Air Pollution

Real-time PM2.5, PM10 air pollution level in Cardiff

Last Updated: 2025-07-12 01:54:20 AM (Local Time)

location image
Live AQI
52
Air Quality is
Moderate
pm10 :  17 µg/m³
PM2.5 :  10 µg/m³
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
aqi moderate level.webp in Caerdydd
clear

20 °C

Clear
Humidity
Humidity73 %

Wind Speed
Wind Speed4 km/h

UV Index
UV Index0
Last Updated: 2025-07-12 01:54:20 AM (Local Time)
AQI LogoMap

Caerdydd

Major Air Pollutants

Caerdydd

PM2.5's Icon

Particulate Matter(PM2.5)

10µg/m³

PM10's Icon

Particulate Matter(PM10)

17µg/m³

CO's Icon

Carbon Monoxide(CO)

67ppb

SO2's Icon

Sulfur Dioxide(SO2)

0ppb

NO2's Icon

Nitrogen Dioxide(NO2)

12ppb

O3's Icon

Ozone(O3)

17ppb

Trending in United Kingdom

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Why You Should Be Monitoring Air Quality During Monsoon — Not Just in Winter?

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Air Pollution and Lung Cancer: How Toxic Air is Mutating Your DNA?

City Climate Change Severity Analysis is NOW LIVE on AQI.in!📢

City Climate Change Severity Analysis is NOW LIVE on AQI.in!📢

AQI Graph

Historical Air Quality Data

Caerdydd

24 Hours
AQI
Caerdydd
AQI
.
11-07-2025Time12-07-2025
TimeCaerdydd
02 AM38
03 AM20
04 AM27
05 AM21
06 AM30
07 AM35
08 AM34
09 AM32
10 AM36
11 AM47
12 PM47
01 PM47
02 PM51
03 PM40
04 PM29
05 PM29
06 PM29
07 PM31
08 PM36
09 PM33
10 PM34
11 PM33
12 AM34
01 AM47
20
Min.at 3:09 AM on 11th Jul
51
Max.at 2:09 PM on 11th Jul

Want air quality data?

AQI Logo

Download 2024 Annual Data

World Air Quality Report

Globe

AQI Trends - Annual Air Quality Changes

Caerdydd, Cardiff, United Kingdom

AQI
Year
.
AQI
AQI AQI
Mar 202045
Apr 202049
May 202036
Jun 202030
Jul 202019
Aug 202032
Sep 202026
Oct 202023
Nov 202043
Dec 202031
Jan 202131
Feb 202138
Mar 202147
Apr 202145
May 202133
Jun 202133
Jul 202133
Aug 202130
Sep 202134
Oct 202129
Nov 202136
Dec 202137
Jan 202246
Feb 202243
Mar 202257
Apr 202246
May 202241
Jun 202243
Jul 202240
Aug 202243
Sep 202237
Oct 202245
Nov 202248
Dec 202255
Jan 202345
Feb 202344
Mar 202341
Apr 202351
May 202348
Jun 202354
Jul 202340
Aug 202333
Sep 202347
Oct 202341
Nov 202338
Dec 202338
Jan 202439
Feb 202438
Mar 202442
Apr 202436
May 202439
Jun 202433
Jul 202426
Aug 202432
Sep 202436
Oct 202430
Nov 202446
Dec 202430
Jan 202548
Feb 202551
Mar 202536
Apr 202526
May 202531
Jun 202529
Jul 202524


Annual AQI Trends

2020
32AQI
2021
36AQI
13%
Rise
2022
46AQI
28%
Rise
2023
43AQI
-7%
Fall
2024
36AQI
-16%
Fall
2025
36AQI
0%
No Change
Overall Annual Percentage (%) change of AQI in (2020 to 2025)
3%
Rise (Worsened AQI)

Most & Least Polluted Months

Most PollutedMarch, 202257AQI

Least PollutedJuly, 202019AQI

* This data analysis is from year 2020 - 2025

Caerdydd's Locations

Real-time Air Pollution Level

Location
Status
AQI
PM2.5(µg/m³)
PM10(µg/m³)
Temp.(°C)
Humi.(%)
Cardiff Centre
Moderate
54
11
17
19
82
Cardiff Centre
Moderate
54
11
17
19
82
Cardiff Newport Road
Good
49
9
17
19
82

United Kingdom's Metro Cities

Air Quality Index

Birmingham City AQI

Birmingham

27

temp.21°C

hum.64%
Bristol City AQI

Bristol

22

temp.19°C

hum.64%
Glasgow City AQI

Glasgow

19

temp.15°C

hum.100%
Leeds City AQI

Leeds

23

temp.16°C

hum.77%
London City AQI

London

34

temp.21°C

hum.64%
Manchester City AQI

Manchester

26

temp.20°C

hum.64%

Air Quality Calendar 2025

Caerdydd

2025
AQI
January
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
29 Dec
-
30 Dec
-
31 Dec
-
1 Jan
34
2 Jan
43
3 Jan
51
4 Jan
52
5 Jan
27
6 Jan
27
7 Jan
29
8 Jan
44
9 Jan
47
10 Jan
51
11 Jan
69
12 Jan
70
13 Jan
40
14 Jan
44
15 Jan
44
16 Jan
60
17 Jan
54
18 Jan
58
19 Jan
67
20 Jan
64
21 Jan
63
22 Jan
63
23 Jan
51
24 Jan
51
25 Jan
51
26 Jan
49
27 Jan
47
28 Jan
30
29 Jan
31
30 Jan
32
31 Jan
37
1 Feb
46
February
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
26 Jan
49
27 Jan
47
28 Jan
30
29 Jan
31
30 Jan
32
31 Jan
37
1 Feb
46
2 Feb
31
3 Feb
41
4 Feb
32
5 Feb
39
6 Feb
48
7 Feb
37
8 Feb
56
9 Feb
73
10 Feb
65
11 Feb
63
12 Feb
65
13 Feb
68
14 Feb
67
15 Feb
73
16 Feb
73
17 Feb
71
18 Feb
76
19 Feb
80
20 Feb
33
21 Feb
37
22 Feb
45
23 Feb
36
24 Feb
33
25 Feb
33
26 Feb
26
27 Feb
28
28 Feb
43
1 Mar
43
March
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
23 Feb
36
24 Feb
33
25 Feb
33
26 Feb
26
27 Feb
28
28 Feb
43
1 Mar
43
2 Mar
47
3 Mar
39
4 Mar
40
5 Mar
48
6 Mar
49
7 Mar
38
8 Mar
38
9 Mar
53
10 Mar
67
11 Mar
42
12 Mar
27
13 Mar
24
14 Mar
28
15 Mar
25
16 Mar
25
17 Mar
21
18 Mar
32
19 Mar
45
20 Mar
42
21 Mar
40
22 Mar
32
23 Mar
36
24 Mar
52
25 Mar
32
26 Mar
26
27 Mar
22
28 Mar
19
29 Mar
21
30 Mar
24
31 Mar
28
1 Apr
28
2 Apr
28
3 Apr
32
4 Apr
41
5 Apr
30
April
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
30 Mar
24
31 Mar
28
1 Apr
28
2 Apr
28
3 Apr
32
4 Apr
41
5 Apr
30
6 Apr
20
7 Apr
23
8 Apr
30
9 Apr
32
10 Apr
31
11 Apr
38
12 Apr
35
13 Apr
24
14 Apr
17
15 Apr
20
16 Apr
17
17 Apr
21
18 Apr
20
19 Apr
23
20 Apr
23
21 Apr
22
22 Apr
17
23 Apr
18
24 Apr
27
25 Apr
31
26 Apr
29
27 Apr
21
28 Apr
21
29 Apr
29
30 Apr
34
1 May
39
2 May
32
3 May
25
May
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
27 Apr
21
28 Apr
21
29 Apr
29
30 Apr
34
1 May
39
2 May
32
3 May
25
4 May
20
5 May
19
6 May
21
7 May
32
8 May
25
9 May
32
10 May
37
11 May
36
12 May
36
13 May
34
14 May
38
15 May
37
16 May
36
17 May
39
18 May
43
19 May
39
20 May
36
21 May
32
22 May
34
23 May
36
24 May
28
25 May
24
26 May
25
27 May
23
28 May
25
29 May
21
30 May
22
31 May
24
June
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Jun
29
2 Jun
25
3 Jun
26
4 Jun
25
5 Jun
19
6 Jun
20
7 Jun
17
8 Jun
22
9 Jun
57
10 Jun
32
11 Jun
32
12 Jun
41
13 Jun
37
14 Jun
27
15 Jun
31
16 Jun
29
17 Jun
28
18 Jun
33
19 Jun
42
20 Jun
51
21 Jun
44
22 Jun
44
23 Jun
22
24 Jun
22
25 Jun
16
26 Jun
18
27 Jun
20
28 Jun
18
29 Jun
22
30 Jun
27
1 Jul
27
2 Jul
20
3 Jul
20
4 Jul
25
5 Jul
23
July
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
29 Jun
22
30 Jun
27
1 Jul
27
2 Jul
20
3 Jul
20
4 Jul
25
5 Jul
23
6 Jul
21
7 Jul
23
8 Jul
25
9 Jul
26
10 Jul
28
11 Jul
-
12 Jul
-
13 Jul
-
14 Jul
-
15 Jul
-
16 Jul
-
17 Jul
-
18 Jul
-
19 Jul
-
20 Jul
-
21 Jul
-
22 Jul
-
23 Jul
-
24 Jul
-
25 Jul
-
26 Jul
-
27 Jul
-
28 Jul
-
29 Jul
-
30 Jul
-
31 Jul
-
1 Aug
-
2 Aug
-
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+

Health Advice For People Living In

Caerdydd

0Cigarettes per day

Weekly 0 Cigarettes
Monthly 0 Cigarettes

Breathe easy and get active! The air quality is perfect for enjoying outdoor activities.

Source:

Berkeley Earth


Solutions for Current AQI

  • Air Purifier
    Air PurifierTurn On
  • Car Filter
    Car FilterMust
  • N95 Mask
    N95 MaskMust
  • Stay Indoor
    Stay IndoorMust


Must turn on the air purifier to enjoy fresh air.

Get an Air Purifier

Prevent Health Problems: Understand Your Risks

Caerdydd

  • asthma due to air pollution in CaerdyddAsthma
  • heart due to air pollution in CaerdyddHeart Issues
  • allergy due to air pollution in CaerdyddAllergies
  • sinus due to air pollution in CaerdyddSinus
  • flu due to air pollution in CaerdyddCold/Flu
  • copd due to air pollution in CaerdyddChronic (COPD)
asthma due to air pollution in Caerdydd

Mid. Chances of Asthma

Asthma

Risk of Asthma symptoms is Mid. when AQI is Moderate (50-150)

Moderate symptoms including frequent wheezing, noticeable shortness of breath, chest tightness, and persistent cough.

Do's :

  • Limit outdoor activities when AQI is poor.

  • Clean indoor air with an air purifier to reduce exposure.

  • Soothe the respiratory tract with herbal teas or warm water to help alleviate symptoms.

Don'ts :

  • Exercise outdoors without a mask.

  • Stay in smoky areas with strong fumes.

Most Polluted Cities 2025

United Kingdom

Analyze the real-time most air polluted cities in the country.

Most Polluted Cities Live Ranking 2025
World's Most PollutedCity Rankings (2024)
World's Most PollutedCountry Rankings(2024)
RankCityAQIAQI Status

Standard Value

Follow

1.

Landore, United Kingdom

53
Moderate
4xabove Standard

2.

Caerdydd, United Kingdom

52
Moderate
3xabove Standard

3.

Holborn, United Kingdom

42
Good
3xabove Standard

4.

London, United Kingdom

38
Good
3xabove Standard

5.

Ilford, United Kingdom

37
Good
2xabove Standard

6.

Dollis Hill, United Kingdom

36
Good
2xabove Standard

7.

Mitcham, United Kingdom

34
Good
2xabove Standard

8.

Eltham, United Kingdom

34
Good
2xabove Standard

9.

Morriston, United Kingdom

33
Good
2xabove Standard

10.

Kidbrooke, United Kingdom

33
Good
2xabove Standard

Last Updated: 12 Jul 2025, 12:55 AM

AQI City Rankings

Air Quality Solutions For Caerdydd

Explore the solutions of air quality monitoring & clean air.

Here are some applications that you can go through to find out the solutions.

Air Quality Monitor

Air Quality Monitor

Monitor the air quality
Air Quality Sensors

Air Quality Sensors

Sensors to measure the air quality
Fresh Air Machine

Fresh Air Machine

Clean the air you breathe
Car Cabin Filter

Car Cabin Filter

Purify the air in your car
N95 Mask

N95 Mask

Shield yourself from pollution
air quality solutions for offices for Caerdydd

Air Quality Solution For Offices

A complete solution for air quality monitoring, data analysis, and fresh air solutions in workplaces prioritizing employee's health and productivity.

air quality solutions for smart-city for Caerdydd

Air Quality Solutions For Smart City

Prana Air smart city project provides air quality monitors, drones, outdoor air purifiers, and data dashboards solution to improve air quality.

air quality solutions for institutes for Caerdydd

Air Quality Solutions for Schools | Institutes

Prana Air provides the air quality solutions for schools by air monitoring & fresh air machine that help the students to breather clean air.

air quality solutions for hotels for Caerdydd

Air Quality Solutions For Hotels

Prana Air air quality solutions are suited for hotel businesses. The occupancy of hotels is the main reasons for bad air quality.

air quality solutions for restaurants for Caerdydd

Air Quality Solutions for Restaurants

Prana Air has the air quality solutions for restaurant, cafes, and gives you the power to know what your customers and staff breathe.

air quality solutions for rmc-plants for Caerdydd

Air Quality Solutions for RMC Plants

Prana Air provides air quality monitoring solutions for RMC plants. Improve compliance, protect workers and community, and reduce emissions.

air quality solutions for fitness-center for Caerdydd

Air Quality Solutions for Fitness Center

Prana Air provides the air quality solutions of pollution monitoring and fresh air for fitness center - gym.

air quality solutions for parking-lot for Caerdydd

Air Quality Solutions for Parking Lot

A complete solution for air monitoring, data analysis, and fresh air solutions for enclosed car parking areas and car lots.

air quality solutions for retail-stores for Caerdydd

Air Quality Solutions for Retail Stores

Prana Air provides air quality solutions of pollution monitoring and fresh air for retail stores and shopping outlets.

air quality solutions for airport for Caerdydd

Prana Air provides air quality solutions of pollution monitoring and fresh air for retail stores and shopping outlets

Prana Air provides the air quality solutions for airport. Gathering of many passengers is the main reasons of bad air quality in airport.

air quality solutions for construction-sites for Caerdydd

Air Quality Solutions For Construction Sites

Prana Air offers air quality monitoring solutions for construction sites with data cloud storage, web-dashboard, mobile apps, TV display.

air quality solutions for hospitals for Caerdydd

Air Quality Solutions For Hospitals

Prana Air provides air quality monitoring and fresh air solutions for hospitals to ensure clean and healthy indoor air.

air quality solutions for bathroom for Caerdydd

Air Quality Solutions For Washroom | Bathroom

Improve washroom and bathroom air quality with Prana Air air quality monitoring devices and fresh air machine. Breathe easy and stay healthy.

air quality solutions for banks for Caerdydd

Air Quality Solutions for Banks

Prana Air provides air quality solutions of pollution monitoring and fresh air for banks and financial institutions.

air quality solutions for cinema for Caerdydd

Air Quality Solutions for Cinema

Air quality solutions for cinema halls or theatres will help the customers to get the good experience, comfort and breathe clean air.

air quality solutions for real-estates for Caerdydd

Air Quality Solutions For Real Estates

Prana Air provides the air quality solutions of pollution monitoring and fresh air for real estates - residential and commercial.

Caerdydd's AQI Data Analytics Solutions

Air quality data monitoring platforms

Mobile AppMobile App
Smart TV AppSmart TV App
Web DashboardWeb Dashboard
APIAPI
WidgetsWidgets
aqi air quality app for Caerdydd
Mobile App

Empower Your Decisions with Reliable Data

Get it onApp Store
Get it onGoogle Play
Your area’s real-time data with detailed parameters.

Your area’s real-time data with detailed parameters.


Personalized health advice as per current AQI.

Personalized health advice as per current AQI.


Analytical data to identify trends and conditions.

Analytical data to identify trends and conditions.


Connect and control your air quality devices.

Connect and control your air quality devices.


Air Quality FAQs

at Caerdydd

Frequently Asked Questions About Air Quality

What is the current AQI level in Caerdydd?

The current real-time AQI level in Caerdydd is 52 (Moderate). This was last updated 2025-07-12 01:54:20 AM (Local Time).

When was the best AQI level in Caerdydd in the last 24 hours?

The best AQI level was 20 (Good) at 3:09 AM, Jul 11, 2025 (Local Time) during the last 24 hours.

When was the worst AQI level in Caerdydd in the last 24 hours?

The worst AQI level was 51 (Moderate) at 2:09 PM, Jul 11, 2025 (Local Time) during the last 24 hours.

What is the current trend of AQI levels in Caerdydd during last 24 hours?

The AQI levels in Caerdydd have been fluctuating throughout the last 24 hours. The levels have increased by highest 51 at 2:09 PM, Jul 11, 2025 (Local Time), lowest 20 at 3:09 AM, Jul 11, 2025 (Local Time).

What actions are recommended as per the current AQI level in Caerdydd?

Current AQI levels are acceptable; however, some pollutants may be a concern for a small number of sensitive individuals.

Recent AQI Blogs

Read the latest news

Here are some latest blogs that you can go through to find out more air pollution.

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Prana Sense

Air Quality Monitor

Air Quality Index depicts the extent of air pollution at a particular location.

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Pocket PM

Air Quality Monitor

Know the air quality around you wherever you are with the Pocket monitor to get instant air quality insights.

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Cair +

Indoor Air Quality Monitor

Track indoor air quality with advanced connectivity and portability for real-time air quality data.

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