AQI PM2.5 PM10 CO SO2 NO2 O3

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Loei Air Quality Index (AQI) | Air Pollution

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

Last Updated: 2025-11-27 05:04:11 AM (Local Time)

Live AQI

97(AQI-US)

Air Quality is

Moderate

pm10 : 44 µg/m³

PM2.5 : 33 µg/m³

Good

050

Moderate

100

Poor

150

Unhealthy

200

Severe

300

Hazardous

301+

13 °C

Last Updated: 2025-11-27 05:04:11 AM (Local Time)

Map

Loei

Major Air Pollutants
Loei

Particulate Matter(PM2.5)

33µg/m³

Particulate Matter(PM10)

44µg/m³

Carbon Monoxide(CO)

336ppb

Sulfur Dioxide(SO2)

2ppb

Nitrogen Dioxide(NO2)

3ppb

Ozone(O3)

42ppb

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AQI Graph

Historical Air Quality Data
Loei

24 Hours

AQI

Loei

AQI

26-11-2025Time27-11-2025

Time	Loei
05 AM	92
06 AM	91
07 AM	90
08 AM	96
09 AM	98
10 AM	106
11 AM	107
12 PM	100
01 PM	95
02 PM	92
03 PM	88
04 PM	86
05 PM	85
06 PM	88
07 PM	99
08 PM	112
09 PM	133
10 PM	135
11 PM	130
12 AM	122
01 AM	113
02 AM	107
03 AM	106
04 AM	99
05 AM	90

Min.at 5:05 PM on 26th Nov

135

Max.at 10:05 PM on 26th Nov

Want air quality data?

AQI Trends - Annual Air Quality Changes
Loei, Thailand

AQI

Year

AQI

AQI	AQI
Mar 2020	122
Apr 2020	102
May 2020	62
Jun 2020	39
Jul 2020	41
Aug 2020	38
Sep 2020	37
Oct 2020	39
Nov 2020	59
Dec 2020	73
Jan 2021	96
Feb 2021	103
Mar 2021	107
Apr 2021	63
May 2021	48
Jun 2021	39
Jul 2021	26
Aug 2021	36
Sep 2021	20
Oct 2021	33
Nov 2021	52
Dec 2021	92
Jan 2022	86
Feb 2022	87
Mar 2022	97
Apr 2022	96
May 2022	48
Jun 2022	33
Jul 2022	24
Aug 2022	25
Sep 2022	29
Oct 2022	76
Nov 2022	69
Dec 2022	88
Jan 2023	94
Feb 2023	120
Mar 2023	118
Apr 2023	109
May 2023	86
Jun 2023	48
Jul 2023	41
Aug 2023	56
Sep 2023	25
Oct 2023	51
Nov 2023	65
Dec 2023	68
Jan 2024	69
Feb 2024	110
Mar 2024	131
Apr 2024	128
May 2024	64
Jun 2024	44
Jul 2024	37
Aug 2024	40
Sep 2024	48
Oct 2024	60
Nov 2024	80
Dec 2024	83
Jan 2025	112
Feb 2025	96
Mar 2025	111
Apr 2025	82
May 2025	58
Jun 2025	51
Jul 2025	50
Aug 2025	50
Sep 2025	42
Oct 2025	61
Nov 2025	61

Annual AQI Trends

2020

56AQI

2021

61AQI

Rise

2022

68AQI

11%

Rise

2023

75AQI

10%

Rise

2024

74AQI

-1%

Fall

2025

70AQI

-5%

Fall

Overall Annual Percentage (%) change of AQI in (2020 to 2025)

Rise (Worsened AQI)

Most & Least Polluted Months

Most PollutedMarch, 2024131AQI

Least PollutedSeptember, 202120AQI

* This data analysis is from year 2020 - 2025

Loei's Cities
Real-time Air Pollution Level

Location

Status

AQI

PM2.5(µg/m³)

PM10(µg/m³)

Temp.(°C)

Humi.(%)

Khok Khamin

Poor

107

Loei

Moderate

Na Duang

Moderate

Wang Saphung

Moderate

Thailand's Metro Cities
Air Quality Index

Bangkok

Chiang Mai

Hat Yai

Hua Hin

Khon Kaen

Nakhon Ratchasima

Pattaya City

Phitsanulok

Air Quality Calendar 2025
Loei

2025

AQI

January

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
29 Dec -	30 Dec -	31 Dec -	1 Jan 93	2 Jan 96	3 Jan 99	4 Jan 109
5 Jan 118	6 Jan 124	7 Jan 129	8 Jan 129	9 Jan 118	10 Jan 95	11 Jan 92
12 Jan 99	13 Jan 110	14 Jan 117	15 Jan 105	16 Jan 92	17 Jan 105	18 Jan 115
19 Jan 114	20 Jan 127	21 Jan 134	22 Jan 128	23 Jan 133	24 Jan 139	25 Jan 135
26 Jan 123	27 Jan 78	28 Jan 86	29 Jan 96	30 Jan 108	31 Jan 114	1 Feb 117

February

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
26 Jan 123	27 Jan 78	28 Jan 86	29 Jan 96	30 Jan 108	31 Jan 114	1 Feb 117
2 Feb 115	3 Feb 121	4 Feb 84	5 Feb 99	6 Feb 110	7 Feb 113	8 Feb 82
9 Feb 76	10 Feb 85	11 Feb 97	12 Feb 106	13 Feb 110	14 Feb 116	15 Feb 108
16 Feb 133	17 Feb 121	18 Feb 118	19 Feb 103	20 Feb 104	21 Feb 96	22 Feb 88
23 Feb 74	24 Feb 64	25 Feb 59	26 Feb 52	27 Feb 63	28 Feb 74	1 Mar 81

March

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
23 Feb 74	24 Feb 64	25 Feb 59	26 Feb 52	27 Feb 63	28 Feb 74	1 Mar 81
2 Mar 87	3 Mar 92	4 Mar 107	5 Mar 107	6 Mar 115	7 Mar 75	8 Mar 78
9 Mar 81	10 Mar 77	11 Mar 97	12 Mar 102	13 Mar 85	14 Mar 91	15 Mar 102
16 Mar 94	17 Mar 85	18 Mar 85	19 Mar 101	20 Mar 108	21 Mar 129	22 Mar 145
23 Mar 155	24 Mar 164	25 Mar 166	26 Mar 163	27 Mar 153	28 Mar 156	29 Mar 152
30 Mar 114	31 Mar 105	1 Apr 99	2 Apr 110	3 Apr 128	4 Apr 134	5 Apr 123

April

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
30 Mar 114	31 Mar 105	1 Apr 99	2 Apr 110	3 Apr 128	4 Apr 134	5 Apr 123
6 Apr 100	7 Apr 89	8 Apr 87	9 Apr 86	10 Apr 84	11 Apr 82	12 Apr 72
13 Apr 65	14 Apr 73	15 Apr 65	16 Apr 66	17 Apr 60	18 Apr 59	19 Apr 59
20 Apr 59	21 Apr 63	22 Apr 71	23 Apr 77	24 Apr 79	25 Apr 87	26 Apr 89
27 Apr 76	28 Apr 76	29 Apr 70	30 Apr 73	1 May 74	2 May 79	3 May 71

May

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
27 Apr 76	28 Apr 76	29 Apr 70	30 Apr 73	1 May 74	2 May 79	3 May 71
4 May 82	5 May 83	6 May 77	7 May 80	8 May 65	9 May 64	10 May 61
11 May 53	12 May 50	13 May 62	14 May 63	15 May 52	16 May 52	17 May 53
18 May 51	19 May 53	20 May 54	21 May 56	22 May 53	23 May 56	24 May 50
25 May 49	26 May 46	27 May 44	28 May 45	29 May 42	30 May 44	31 May 44

June

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
1 Jun 45	2 Jun 43	3 Jun 48	4 Jun 62	5 Jun 65	6 Jun 62	7 Jun 63
8 Jun 58	9 Jun 58	10 Jun 54	11 Jun 48	12 Jun 48	13 Jun 52	14 Jun 50
15 Jun 46	16 Jun 44	17 Jun 48	18 Jun 47	19 Jun 46	20 Jun 47	21 Jun 46
22 Jun 45	23 Jun 44	24 Jun 47	25 Jun 49	26 Jun 52	27 Jun 50	28 Jun 48
29 Jun 50	30 Jun 51	1 Jul 54	2 Jul 51	3 Jul 53	4 Jul 53	5 Jul 54

July

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
29 Jun 50	30 Jun 51	1 Jul 54	2 Jul 51	3 Jul 53	4 Jul 53	5 Jul 54
6 Jul 50	7 Jul 51	8 Jul 54	9 Jul 55	10 Jul 57	11 Jul 54	12 Jul 53
13 Jul 53	14 Jul 54	15 Jul 55	16 Jul 49	17 Jul 48	18 Jul 44	19 Jul 45
20 Jul 46	21 Jul 44	22 Jul 44	23 Jul 40	24 Jul 44	25 Jul 47	26 Jul 51
27 Jul 48	28 Jul 47	29 Jul 47	30 Jul 50	31 Jul 55	1 Aug 59	2 Aug 57

August

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
27 Jul 48	28 Jul 47	29 Jul 47	30 Jul 50	31 Jul 55	1 Aug 59	2 Aug 57
3 Aug 57	4 Aug 57	5 Aug 57	6 Aug 53	7 Aug 47	8 Aug 43	9 Aug 41
10 Aug 39	11 Aug 42	12 Aug 47	13 Aug 50	14 Aug 52	15 Aug 47	16 Aug 46
17 Aug 45	18 Aug 48	19 Aug 49	20 Aug 54	21 Aug 57	22 Aug 56	23 Aug 53
24 Aug 51	25 Aug 54	26 Aug 48	27 Aug 49	28 Aug 51	29 Aug 52	30 Aug 53
31 Aug 49	1 Sep 49	2 Sep 51	3 Sep 56	4 Sep 47	5 Sep 54	6 Sep 53

September

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
31 Aug 49	1 Sep 49	2 Sep 51	3 Sep 56	4 Sep 47	5 Sep 54	6 Sep 53
7 Sep 54	8 Sep 51	9 Sep 48	10 Sep 47	11 Sep 51	12 Sep 53	13 Sep 52
14 Sep 50	15 Sep 50	16 Sep 46	17 Sep 52	18 Sep 46	19 Sep 37	20 Sep 32
21 Sep 32	22 Sep 29	23 Sep 26	24 Sep 24	25 Sep 22	26 Sep 17	27 Sep 16
28 Sep 22	29 Sep 38	30 Sep 40	1 Oct 45	2 Oct 55	3 Oct 56	4 Oct 66

October

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
28 Sep 22	29 Sep 38	30 Sep 40	1 Oct 45	2 Oct 55	3 Oct 56	4 Oct 66
5 Oct 59	6 Oct 68	7 Oct 62	8 Oct 61	9 Oct 63	10 Oct 66	11 Oct 78
12 Oct 69	13 Oct 65	14 Oct 57	15 Oct 54	16 Oct 54	17 Oct 64	18 Oct 67
19 Oct 63	20 Oct 69	21 Oct 78	22 Oct 67	23 Oct 56	24 Oct 48	25 Oct 50
26 Oct 56	27 Oct 60	28 Oct 66	29 Oct 71	30 Oct 62	31 Oct 42	1 Nov 39

November

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
26 Oct 56	27 Oct 60	28 Oct 66	29 Oct 71	30 Oct 62	31 Oct 42	1 Nov 39
2 Nov 46	3 Nov 48	4 Nov 47	5 Nov 50	6 Nov 60	7 Nov 56	8 Nov 32
9 Nov 51	10 Nov 62	11 Nov 48	12 Nov 63	13 Nov 54	14 Nov 67	15 Nov 78
16 Nov 73	17 Nov 61	18 Nov 72	19 Nov 61	20 Nov 52	21 Nov 69	22 Nov 73
23 Nov 82	24 Nov 86	25 Nov 88	26 Nov -	27 Nov -	28 Nov -	29 Nov -
30 Nov -	1 Dec -	2 Dec -	3 Dec -	4 Dec -	5 Dec -	6 Dec -

Health Advice For People Living In
Loei

1.6Cigarettes per day

Weekly 11.2 Cigarettes

Monthly 48 Cigarettes

Breathing the air in this location is as harmful as smoking 1.6 cigarettes a day.

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 PurifierTurn On
Car FilterMust
N95 MaskMust
Stay IndoorMust

Must turn on the air purifier to enjoy fresh air.

Get an Air Purifier

Prevent Health Problems: Understand Your Risks

Loei

Asthma
Heart Issues
Allergies
Sinus
Cold/Flu
Chronic (COPD)

Mild Chances of Asthma

Asthma

Risk of Asthma symptoms is Mild 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.

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
Thailand

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

Nakhon Pathom, Thailand

Unhealthy

11xabove Standard

Samut Songkhram, Thailand

Ratchaburi, Thailand

Pak Kret, Thailand

Amphoe Mueang Nonthaburi, Thailand

Sam Phran, Thailand

Pathum Thani, Thailand

Tha Maka, Thailand

Ban Lao, Thailand

10.

Nonthaburi, Thailand

Poor

8xabove Standard

Last Updated: 26 Nov 2025, 10:04 PM

AQI City Rankings

Air Quality Solutions For Loei
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

Monitor the air quality

Air Quality Sensors

Sensors to measure the air quality

Fresh Air Machine

Clean the air you breathe

Car Cabin Filter

Purify the air in your car

N95 Mask

Shield yourself from pollution

air quality solutions for offices for Loei

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

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 Loei

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

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

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

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

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

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

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

air quality solutions for airport for Loei

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

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

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 Loei

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

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

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

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

Loei's AQI Data Analytics Solutions
Air quality data monitoring platforms

Mobile App

Smart TV App

Web Dashboard

API

Widgets

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.

Personalized health advice as per current AQI.

Analytical data to identify trends and conditions.

Connect and control your air quality devices.

Air Quality FAQs
at Loei

Frequently Asked Questions About Air Quality

What is the current AQI level in Loei?

The current real-time AQI level in Loei is 97 (Moderate). This was last updated 2025-11-27 05:04:11 AM (Local Time).

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

The best AQI level was 85 (Moderate) at 5:05 PM (Local Time) during the last 24 hours.

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

The worst AQI level was 135 (Poor) at 10:05 PM (Local Time) during the last 24 hours.

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

The AQI levels in Loei have been fluctuating throughout the last 24 hours. The levels have increased by highest 135 at 10:05 PM (Local Time), lowest 85 at 5:05 PM (Local Time).

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

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