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Sam Phrao Air Quality Index (AQI) | Air Pollution

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

Last Updated: 2025-11-29 03:29:19 AM (Local Time)

Live AQI

153(AQI-US)

Air Quality is

Unhealthy

pm10 : 168 µg/m³

PM2.5 : 58 µg/m³

Good

050

Moderate

100

Poor

150

Unhealthy

200

Severe

300

Hazardous

301+

14 °C

Last Updated: 2025-11-29 03:29:19 AM (Local Time)

Map

Sam Phrao

Major Air Pollutants
Sam Phrao

Particulate Matter(PM2.5)

58µg/m³

Particulate Matter(PM10)

168µg/m³

Carbon Monoxide(CO)

959ppb

Sulfur Dioxide(SO2)

2ppb

Nitrogen Dioxide(NO2)

25ppb

Ozone(O3)

10ppb

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AQI Graph

Historical Air Quality Data
Sam Phrao

24 Hours

AQI

Sam Phrao

AQI

28-11-2025Time29-11-2025

Time	Sam Phrao
03 AM	80
04 AM	78
05 AM	76
06 AM	68
07 AM	65
08 AM	66
09 AM	75
10 AM	92
11 AM	90
12 PM	91
01 PM	102
02 PM	112
03 PM	73
04 PM	64
05 PM	62
06 PM	58
07 PM	56
08 PM	64
09 PM	83
10 PM	98
11 PM	119
12 AM	133
01 AM	152
02 AM	151
03 AM	152

Min.at 7:05 PM on 28th Nov

152

Max.at 1:05 AM on 29th Nov

Want air quality data?

AQI Trends - Annual Air Quality Changes
Sam Phrao, Udon Thani, Thailand

AQI

Year

AQI

AQI	AQI
Oct 2022	108
Nov 2022	59
Dec 2022	62
Jan 2023	67
Feb 2023	81
Mar 2023	88
Apr 2023	73
May 2023	47
Jun 2023	25
Jul 2023
Aug 2023
Sep 2023
Oct 2023
Nov 2023	42
Dec 2023	37
Jan 2024	41
Feb 2024
Mar 2024	33
Apr 2024	38
May 2024	44
Jun 2024	50
Jul 2024	46
Aug 2024	44
Sep 2024	41
Oct 2024	53
Nov 2024	81
Dec 2024	77
Jan 2025	105
Feb 2025	84
Mar 2025	104
Apr 2025	82
May 2025	52
Jun 2025	47
Jul 2025	47
Aug 2025	50
Sep 2025	42
Oct 2025	60
Nov 2025	61

Annual AQI Trends

2022

63AQI

2023

62AQI

-2%

Fall

2024

56AQI

-10%

Fall

2025

67AQI

20%

Rise

Overall Annual Percentage (%) change of AQI in (2022 to 2025)

Rise (Worsened AQI)

Most & Least Polluted Months

Most PollutedOctober, 2022108AQI

Least PollutedJune, 202325AQI

* This data analysis is from year 2022 - 2025

Sam Phrao's Locations
Real-time Air Pollution Level

Location

Status

AQI

PM2.5(µg/m³)

PM10(µg/m³)

Temp.(°C)

Humi.(%)

Sam Phrao

Unhealthy

153

168

Thailand's Metro Cities
Air Quality Index

Bangkok

105

Chiang Mai

Hat Yai

Hua Hin

Khon Kaen

107

temp.13°C

hum.77%

Nakhon Ratchasima

113

Pattaya City

Phitsanulok

125

temp.15°C

hum.84%

Air Quality Calendar 2025
Sam Phrao

2025

AQI

January

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
29 Dec -	30 Dec -	31 Dec -	1 Jan 87	2 Jan 90	3 Jan 91	4 Jan 105
5 Jan 105	6 Jan 115	7 Jan 127	8 Jan 118	9 Jan 105	10 Jan 83	11 Jan 87
12 Jan 95	13 Jan 102	14 Jan 110	15 Jan 96	16 Jan 83	17 Jan 104	18 Jan 112
19 Jan 110	20 Jan 120	21 Jan 122	22 Jan 127	23 Jan 134	24 Jan 138	25 Jan 140
26 Jan 104	27 Jan 74	28 Jan 81	29 Jan 89	30 Jan 95	31 Jan 109	1 Feb 113

February

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
26 Jan 104	27 Jan 74	28 Jan 81	29 Jan 89	30 Jan 95	31 Jan 109	1 Feb 113
2 Feb 119	3 Feb 114	4 Feb 78	5 Feb 82	6 Feb 100	7 Feb 90	8 Feb 64
9 Feb 68	10 Feb 72	11 Feb 84	12 Feb 104	13 Feb 84	14 Feb 87	15 Feb 96
16 Feb 113	17 Feb 92	18 Feb 89	19 Feb 81	20 Feb 92	21 Feb 76	22 Feb 75
23 Feb 62	24 Feb 59	25 Feb 58	26 Feb 52	27 Feb 65	28 Feb 79	1 Mar 82

March

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
23 Feb 62	24 Feb 59	25 Feb 58	26 Feb 52	27 Feb 65	28 Feb 79	1 Mar 82
2 Mar 88	3 Mar 91	4 Mar 105	5 Mar 106	6 Mar 108	7 Mar 69	8 Mar 70
9 Mar 79	10 Mar 68	11 Mar 82	12 Mar 91	13 Mar 74	14 Mar 83	15 Mar 92
16 Mar 79	17 Mar 76	18 Mar 78	19 Mar 98	20 Mar 101	21 Mar 121	22 Mar 126
23 Mar 149	24 Mar 155	25 Mar 161	26 Mar 160	27 Mar 154	28 Mar 153	29 Mar 146
30 Mar 97	31 Mar 89	1 Apr 85	2 Apr 99	3 Apr 114	4 Apr 128	5 Apr 120

April

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
30 Mar 97	31 Mar 89	1 Apr 85	2 Apr 99	3 Apr 114	4 Apr 128	5 Apr 120
6 Apr 101	7 Apr 94	8 Apr 91	9 Apr 87	10 Apr 79	11 Apr 82	12 Apr 73
13 Apr 66	14 Apr 77	15 Apr 72	16 Apr 74	17 Apr 64	18 Apr 64	19 Apr 62
20 Apr 64	21 Apr 70	22 Apr 74	23 Apr 78	24 Apr 77	25 Apr 83	26 Apr 80
27 Apr 71	28 Apr 77	29 Apr 69	30 Apr 72	1 May 73	2 May 72	3 May 68

May

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
27 Apr 71	28 Apr 77	29 Apr 69	30 Apr 72	1 May 73	2 May 72	3 May 68
4 May 76	5 May 74	6 May 71	7 May 68	8 May 64	9 May 58	10 May 55
11 May 48	12 May 39	13 May 56	14 May 54	15 May 45	16 May 44	17 May 51
18 May 45	19 May 46	20 May 43	21 May 52	22 May 46	23 May 47	24 May 43
25 May 38	26 May 35	27 May 37	28 May 44	29 May 40	30 May 42	31 May 43

June

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
1 Jun 41	2 Jun 38	3 Jun 39	4 Jun 51	5 Jun 54	6 Jun 56	7 Jun 58
8 Jun 54	9 Jun 52	10 Jun 50	11 Jun 42	12 Jun 45	13 Jun 44	14 Jun 48
15 Jun 37	16 Jun 41	17 Jun 48	18 Jun 49	19 Jun 46	20 Jun 45	21 Jun 49
22 Jun 50	23 Jun 49	24 Jun 44	25 Jun 43	26 Jun 48	27 Jun 49	28 Jun 45
29 Jun 44	30 Jun 46	1 Jul 47	2 Jul 45	3 Jul 45	4 Jul 48	5 Jul 48

July

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
29 Jun 44	30 Jun 46	1 Jul 47	2 Jul 45	3 Jul 45	4 Jul 48	5 Jul 48
6 Jul 44	7 Jul 46	8 Jul 51	9 Jul 51	10 Jul 53	11 Jul 48	12 Jul 52
13 Jul 50	14 Jul 52	15 Jul 52	16 Jul 45	17 Jul 47	18 Jul 44	19 Jul 42
20 Jul 39	21 Jul 40	22 Jul 40	23 Jul 44	24 Jul 44	25 Jul 48	26 Jul 52
27 Jul 50	28 Jul 48	29 Jul 47	30 Jul 49	31 Jul 53	1 Aug 58	2 Aug 56

August

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
27 Jul 50	28 Jul 48	29 Jul 47	30 Jul 49	31 Jul 53	1 Aug 58	2 Aug 56
3 Aug 57	4 Aug 57	5 Aug 58	6 Aug 54	7 Aug 49	8 Aug 51	9 Aug 42
10 Aug 42	11 Aug 39	12 Aug 48	13 Aug 50	14 Aug 51	15 Aug 48	16 Aug 47
17 Aug 45	18 Aug 48	19 Aug 49	20 Aug 50	21 Aug 56	22 Aug 55	23 Aug 53
24 Aug 51	25 Aug 53	26 Aug 47	27 Aug 48	28 Aug 50	29 Aug 52	30 Aug 51
31 Aug 49	1 Sep 46	2 Sep 48	3 Sep 53	4 Sep 42	5 Sep 50	6 Sep 49

September

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
31 Aug 49	1 Sep 46	2 Sep 48	3 Sep 53	4 Sep 42	5 Sep 50	6 Sep 49
7 Sep 51	8 Sep 50	9 Sep 46	10 Sep 46	11 Sep 48	12 Sep 49	13 Sep 48
14 Sep 48	15 Sep 50	16 Sep 47	17 Sep 47	18 Sep 38	19 Sep 34	20 Sep 35
21 Sep 35	22 Sep 35	23 Sep 25	24 Sep 24	25 Sep 21	26 Sep 27	27 Sep 41
28 Sep 42	29 Sep 38	30 Sep 33	1 Oct 39	2 Oct 58	3 Oct 65	4 Oct 66

October

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
28 Sep 42	29 Sep 38	30 Sep 33	1 Oct 39	2 Oct 58	3 Oct 65	4 Oct 66
5 Oct 69	6 Oct 61	7 Oct 68	8 Oct 66	9 Oct 61	10 Oct 65	11 Oct 72
12 Oct 73	13 Oct 67	14 Oct 57	15 Oct 59	16 Oct 66	17 Oct 54	18 Oct 60
19 Oct 64	20 Oct 67	21 Oct 71	22 Oct 53	23 Oct 49	24 Oct 42	25 Oct 49
26 Oct 54	27 Oct 64	28 Oct 64	29 Oct 68	30 Oct 53	31 Oct 44	1 Nov 41

November

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
26 Oct 54	27 Oct 64	28 Oct 64	29 Oct 68	30 Oct 53	31 Oct 44	1 Nov 41
2 Nov 43	3 Nov 47	4 Nov 46	5 Nov 57	6 Nov 67	7 Nov 66	8 Nov 37
9 Nov 43	10 Nov 57	11 Nov 67	12 Nov 57	13 Nov 55	14 Nov 66	15 Nov 71
16 Nov 68	17 Nov 63	18 Nov 72	19 Nov 49	20 Nov 54	21 Nov 61	22 Nov 60
23 Nov 74	24 Nov 85	25 Nov 77	26 Nov 84	27 Nov 80	28 Nov -	29 Nov -
30 Nov -	1 Dec -	2 Dec -	3 Dec -	4 Dec -	5 Dec -	6 Dec -

Health Advice For People Living In
Sam Phrao

1.3Cigarettes per day

Weekly 9.1 Cigarettes

Monthly 39 Cigarettes

Breathing the air in this location is as harmful as smoking 1.3 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

Sam Phrao

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

High Chances of Asthma

Asthma

Risk of Asthma symptoms is High when AQI is Unhealthy (150-301)

Severe symptoms including intense wheezing, severe shortness of breath, significant chest tightness, and persistent coughing that may disrupt daily activities.

Do's :

Avoid going outside and keep windows closed to reduce exposure to pollutants.
Take prescribed medications as directed by your healthcare provider.
Maintain clean indoor air with air purifiers, especially in bedrooms and living areas.

Don'ts :

Smoke or expose yourself to secondhand smoke.
Engage in physical exertion outdoors.

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

Nong Khai, Thailand

Severe

16xabove Standard

Samut Sakhon, Thailand

Sam Phrao, Thailand

Pak Kret, Thailand

Samut Songkhram, Thailand

Unhealthy

10xabove Standard

Pathum Thani, Thailand

Poor

10xabove Standard

Amphoe Mueang Nonthaburi, Thailand

Poor

10xabove Standard

Nakhon Pathom, Thailand

Tha Bo, Thailand

10.

Maha Sarakham, Thailand

Poor

9xabove Standard

Last Updated: 28 Nov 2025, 08:34 PM

AQI City Rankings

Air Quality Solutions For Sam Phrao
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 Sam Phrao

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 Sam Phrao

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 Sam Phrao

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 Sam Phrao

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.

Sam Phrao'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 Sam Phrao

Frequently Asked Questions About Air Quality

What is the current AQI level in Sam Phrao?

The current real-time AQI level in Sam Phrao is 153 (Unhealthy). This was last updated 2025-11-29 03:29:19 AM (Local Time).

When was the best AQI level in Sam Phrao in the last 24 hours?

The best AQI level was 56 (Moderate) at 7:05 PM (Local Time) during the last 24 hours.

When was the worst AQI level in Sam Phrao in the last 24 hours?

The worst AQI level was 152 (Unhealthy) at 1:05 AM, Nov 29, 2025 (Local Time) during the last 24 hours.

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

The AQI levels in Sam Phrao have been fluctuating throughout the last 24 hours. The levels have increased by highest 152 at 1:05 AM, Nov 29, 2025 (Local Time), lowest 56 at 7:05 PM (Local Time).

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

Current AQI levels are unhealthy for everyone. It's advised to limit outdoor activities and consider using air purifiers indoors.