AQIHistoryPM2.5PM10COSO2NO2O3
View aqi DataAQIView weather DataWeather
Live

Leon Air Quality Index (AQI) | Air Pollution

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

Last Updated: 2025-08-08 11:39:28 PM (Local Time)

location image
Live AQI
50(AQI-US)
Air Quality is
Good
pm10 :  24 µg/m³
PM2.5 :  10 µg/m³
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
aqi good level.webp in Leon
clear

24 °C

Clear
Humidity
Humidity39 %
Wind Speed
Wind Speed17 km/h
UV Index
UV Index0
Last Updated: 2025-08-08 11:39:28 PM (Local Time)
Map

Leon

Major Air Pollutants

Leon

PM2.5's Icon

Particulate Matter(PM2.5)

10µg/m³

PM10's Icon

Particulate Matter(PM10)

24µg/m³

CO's Icon

Carbon Monoxide(CO)

37ppb

SO2's Icon

Sulfur Dioxide(SO2)

1ppb

NO2's Icon

Nitrogen Dioxide(NO2)

5ppb

O3's Icon

Ozone(O3)

31ppb

Trending in Spain

Case Study: Prana Air’s Air Quality Monitoring Solution for Coal Mining-Trusted by ISM Dhanbad

Case Study: Prana Air’s Air Quality Monitoring Solution for Coal Mining-Trusted by ISM Dhanbad

How Does the Best Air Quality Solution for Airport Improve Operations and Passenger Safety?

How Does the Best Air Quality Solution for Airport Improve Operations and Passenger Safety?

Biggest Wildfire in France’s History?What It Means for Air Quality, Health, and Climate

Biggest Wildfire in France’s History?What It Means for Air Quality, Health, and Climate

Why You Should Add a Real-Time Weather and AQI Widget to Your Website?

Why You Should Add a Real-Time Weather and AQI Widget to Your Website?

AQI.IN's Community Air Quality Monitoring Get a Free AQI Monitor by Joining AQI.IN's Community Initiative.

AQI.IN's Community Air Quality Monitoring Get a Free AQI Monitor by Joining AQI.IN's Community Initiative.

AQI Graph

Historical Air Quality Data

Leon

24 Hours
AQI
Leon
AQI
.
07-08-2025Time08-08-2025
42
Min.at 9:09 AM on 8th Aug
52
Max.at 8:09 PM on 8th Aug

Want air quality data?

Download 2024 Annual Data

World Air Quality Report

Globe

AQI Trends - Annual Air Quality Changes

Leon, Castille Leon, Spain

AQI
Year
.
AQI

Annual AQI Trends

2020
26AQI
2021
29AQI
12%
Rise
2022
38AQI
31%
Rise
2023
34AQI
-11%
Fall
2024
32AQI
-6%
Fall
2025
28AQI
-12%
Fall
Overall Annual Percentage (%) change of AQI in (2020 to 2025)
3%
Rise (Worsened AQI)

Most & Least Polluted Months

Most PollutedJanuary, 202252AQI
Least PollutedApril, 202519AQI

* This data analysis is from year 2020 - 2025

Leon's Locations

Real-time Air Pollution Level

Location
Status
AQI
PM2.5(µg/m³)
PM10(µg/m³)
Temp.(°C)
Humi.(%)
Good
42
8
22
21
59
Good
48
9
25
21
57
Moderate
52
10
25
21
58
Moderate
53
10
25
22
58
Good
47
8
21
21
61
Moderate
52
10
26
22
57
Good
36
6
17
21
61
Moderate
59
13
29
22
55
Moderate
59
14
29
23
55

Spain's Metro Cities

Air Quality Index

Barcelona City AQI

Barcelona

55

temp.27°C
hum.70%
Malaga City AQI

Malaga

44

temp.26°C
hum.79%
Valencia City AQI

Valencia

52

temp.28°C
hum.62%
Zaragoza City AQI

Zaragoza

52

temp.32°C
hum.46%

Air Quality Calendar 2025

Leon

2025
AQI
January
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Jan
59
2 Jan
59
3 Jan
58
4 Jan
52
5 Jan
29
6 Jan
27
7 Jan
25
8 Jan
34
9 Jan
30
10 Jan
30
11 Jan
27
12 Jan
28
13 Jan
34
14 Jan
46
15 Jan
47
16 Jan
45
17 Jan
37
18 Jan
38
19 Jan
45
20 Jan
39
21 Jan
36
22 Jan
28
23 Jan
28
24 Jan
28
25 Jan
26
26 Jan
29
27 Jan
28
28 Jan
28
29 Jan
27
30 Jan
29
31 Jan
32
February
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Feb
34
2 Feb
32
3 Feb
27
4 Feb
30
5 Feb
40
6 Feb
46
7 Feb
41
8 Feb
29
9 Feb
32
10 Feb
39
11 Feb
36
12 Feb
29
13 Feb
27
14 Feb
28
15 Feb
21
16 Feb
37
17 Feb
29
18 Feb
35
19 Feb
39
20 Feb
38
21 Feb
29
22 Feb
21
23 Feb
25
24 Feb
30
25 Feb
29
26 Feb
29
27 Feb
27
28 Feb
24
March
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Mar
23
2 Mar
24
3 Mar
24
4 Mar
29
5 Mar
26
6 Mar
23
7 Mar
22
8 Mar
24
9 Mar
25
10 Mar
25
11 Mar
22
12 Mar
21
13 Mar
21
14 Mar
21
15 Mar
23
16 Mar
20
17 Mar
26
18 Mar
24
19 Mar
30
20 Mar
30
21 Mar
22
22 Mar
20
23 Mar
19
24 Mar
21
25 Mar
22
26 Mar
25
27 Mar
28
28 Mar
29
29 Mar
20
30 Mar
20
31 Mar
23
April
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Apr
23
2 Apr
37
3 Apr
19
4 Apr
22
5 Apr
16
6 Apr
16
7 Apr
22
8 Apr
28
9 Apr
23
10 Apr
28
11 Apr
30
12 Apr
24
13 Apr
17
14 Apr
17
15 Apr
11
16 Apr
12
17 Apr
14
18 Apr
14
19 Apr
11
20 Apr
14
21 Apr
15
22 Apr
16
23 Apr
16
24 Apr
17
25 Apr
19
26 Apr
14
27 Apr
15
28 Apr
17
29 Apr
20
30 Apr
19
May
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 May
18
2 May
21
3 May
22
4 May
23
5 May
24
6 May
17
7 May
19
8 May
21
9 May
20
10 May
16
11 May
19
12 May
20
13 May
17
14 May
19
15 May
17
16 May
19
17 May
21
18 May
22
19 May
18
20 May
19
21 May
23
22 May
15
23 May
18
24 May
18
25 May
20
26 May
18
27 May
20
28 May
23
29 May
25
30 May
33
31 May
35
June
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Jun
37
2 Jun
18
3 Jun
23
4 Jun
20
5 Jun
19
6 Jun
19
7 Jun
18
8 Jun
45
9 Jun
55
10 Jun
52
11 Jun
42
12 Jun
45
13 Jun
38
14 Jun
30
15 Jun
27
16 Jun
29
17 Jun
39
18 Jun
43
19 Jun
47
20 Jun
46
21 Jun
45
22 Jun
45
23 Jun
44
24 Jun
44
25 Jun
39
26 Jun
33
27 Jun
31
28 Jun
34
29 Jun
34
30 Jun
35
July
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Jul
36
2 Jul
38
3 Jul
31
4 Jul
33
5 Jul
32
6 Jul
30
7 Jul
22
8 Jul
21
9 Jul
21
10 Jul
25
11 Jul
31
12 Jul
29
13 Jul
30
14 Jul
32
15 Jul
30
16 Jul
34
17 Jul
35
18 Jul
29
19 Jul
23
20 Jul
22
21 Jul
19
22 Jul
20
23 Jul
22
24 Jul
19
25 Jul
20
26 Jul
28
27 Jul
28
28 Jul
27
29 Jul
22
30 Jul
21
31 Jul
21
August
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1 Aug
30
2 Aug
29
3 Aug
32
4 Aug
36
5 Aug
43
6 Aug
40
7 Aug
48
8 Aug
-
9 Aug
-
10 Aug
-
11 Aug
-
12 Aug
-
13 Aug
-
14 Aug
-
15 Aug
-
16 Aug
-
17 Aug
-
18 Aug
-
19 Aug
-
20 Aug
-
21 Aug
-
22 Aug
-
23 Aug
-
24 Aug
-
25 Aug
-
26 Aug
-
27 Aug
-
28 Aug
-
29 Aug
-
30 Aug
-
31 Aug
-
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+

Health Advice For People Living In

Leon

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

Disclaimer: This cigarette-equivalent estimate is based on the average PM2.5 concentration over the last 24 hours, assuming continuous exposure during that time.

Solutions for Current AQI

  • Air Purifier
    Air PurifierTurn Off
  • Car Filter
    Car FilterAdvisable
  • N95 Mask
    N95 MaskAdvisable
  • Stay Indoor
    Stay IndoorAdvisable

As per the current AQI, turn off the air purifier.

Get an Air Purifier

Prevent Health Problems: Understand Your Risks

Leon

  • asthma due to air pollution in LeonAsthma
  • heart due to air pollution in LeonHeart Issues
  • allergy due to air pollution in LeonAllergies
  • sinus due to air pollution in LeonSinus
  • flu due to air pollution in LeonCold/Flu
  • copd due to air pollution in LeonChronic (COPD)
asthma due to air pollution in Leon

Low Chances of Asthma

Asthma

Risk of Asthma symptoms is Low when AQI is Good (0-50)

Mild symptoms such as slight wheezing, occasional cough, and minor shortness of breath

Do's :

  • Keep track of air quality to plan outdoor activities safely.

  • Drink water to keep airways moist and reduce irritation.

  • Include non-allergenic fruits and vegetables that support overall lung health, like apples, pears, and spinach.

Don'ts :

  • Skip medications that is prescribed by your doctor.

  • Engage in outdoor activities in early morning during high pollen hours.

Disclaimer: The above health risks are precautionary suggestions based on current AQI levels. You may not feel the effects immediately, but prolonged exposure to air pollution can contribute to these health conditions over time. AQI.IN is neither a medical expert nor a provider of medical advice. Please consult a doctor if you experience any of the above similar symptoms.

Most Polluted Cities 2025

Spain

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.

Madrid, Spain

65
Moderate
4xabove Standard

2.

Jaen, Spain

65
Moderate
4xabove Standard

3.

Madrid, Spain

62
Moderate
4xabove Standard

4.

Granada, Spain

61
Moderate
4xabove Standard

5.

Burgos, Spain

60
Moderate
4xabove Standard

6.

Salamanca, Spain

60
Moderate
4xabove Standard

7.

Valladolid, Spain

59
Moderate
4xabove Standard

8.

Laguna De Duero, Spain

59
Moderate
4xabove Standard

9.

Granollers, Spain

59
Moderate
4xabove Standard

10.

Lorca, Spain

58
Moderate
4xabove Standard

Last Updated: 08 Aug 2025, 09:50 PM

AQI City Rankings

Air Quality Solutions For Leon

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 Leon

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 Leon

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 Leon

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 Leon

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 Leon

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 Leon

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 Leon

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 Leon

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 Leon

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 Leon

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 Leon

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 Leon

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 Leon

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 Leon

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 Leon

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 Leon

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.

Leon'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 Leon
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 Leon

Frequently Asked Questions About Air Quality

What is the current AQI level in Leon?

The current real-time AQI level in Leon is 50 (Good). This was last updated 2025-08-08 11:39:28 PM (Local Time).

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

The best AQI level was 42 (Good) at 9:09 AM (Local Time) during the last 24 hours.

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

The worst AQI level was 52 (Moderate) at 8:09 PM (Local Time) during the last 24 hours.

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

The AQI levels in Leon have been fluctuating throughout the last 24 hours. The levels have increased by highest 52 at 8:09 PM (Local Time), lowest 42 at 9:09 AM (Local Time).

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

The air quality is satisfactory, and air pollution poses little or no risk. No special precautions are needed; enjoy outdoor activities freely.

Recent AQI Blogs

Read the latest news

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

Biggest Wildfire in France’s History?What It Means for Air Quality, Health, and Climate

Biggest Wildfire in France’s History?What It Means for Air Quality, Health, and Climate

7 Aug 2025Shakshi
DU Cut-Off 2025: How’s the Air Near Your Dream College?

DU Cut-Off 2025: How’s the Air Near Your Dream College?

6 Aug 2025Shakshi
Why You Should Add a Real-Time Weather and AQI Widget to Your Website?

Why You Should Add a Real-Time Weather and AQI Widget to Your Website?

1 Aug 2025Shakshi
Minneapolis Air Quality Alert: Wildfire Smoke Pushes Pollution to Unhealthy Levels

Minneapolis Air Quality Alert: Wildfire Smoke Pushes Pollution to Unhealthy Levels

31 Jul 2025Shakshi
New Delhi Annual Air Quality: Comparative Analysis of AQI (2020–2025)

New Delhi Annual Air Quality: Comparative Analysis of AQI (2020–2025)

26 Jul 2025Gyane Haobijam
Free Air Quality Monitor from AQI.in: How Anyone Can Track Pollution?

Free Air Quality Monitor from AQI.in: How Anyone Can Track Pollution?

26 Jul 2025Shakshi
Big Dreams, Toxic Air: Why a Father’s ‘No’ to Hansraj College Over Delhi Pollution is a Warning for India

Big Dreams, Toxic Air: Why a Father’s ‘No’ to Hansraj College Over Delhi Pollution is a Warning for India

24 Jul 2025Shakshi
What Is the Real Impact of Air Pollution on Property Rates in India?

What Is the Real Impact of Air Pollution on Property Rates in India?

19 Jul 2025Shakshi
Do People Really Consider Air Pollution Before Moving to Delhi NCR?

Do People Really Consider Air Pollution Before Moving to Delhi NCR?

15 Jul 2025Shakshi
Is Poor Air Quality in Gyms Holding Back Your Fitness Goals?

Is Poor Air Quality in Gyms Holding Back Your Fitness Goals?

12 Jul 2025Shakshi
Prana Air Logo

Prana Sense

Air Quality Monitor

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

Prana Sense Air Quality MonitorPrana Sense Air Quality Monitor
Prana Air Logo

Pocket PM

Air Quality Monitor

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

Pocket PM Air Quality MonitorPocket PM Air Quality Monitor
Prana Air Logo

Cair +

Indoor Air Quality Monitor

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

Cair + Indoor Air Quality MonitorCair + Indoor Air Quality Monitor