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Chiang Rai Air Quality Index (AQI) | Air Pollution

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

Last Updated: 2026-07-19 02:31 (Local Time)

Live AQI

63AQI (US)

Air Quality is

Moderate

PM2.5 : 18 µg/m³

pm10 : 22 µg/m³

Good

050

Moderate

100

Poor

150

Unhealthy

200

Severe

300

Hazardous

301+

19 °C

Last Updated: 2026-07-19 02:31 (Local Time)

Rank593^rd

Currently, Chiang Rai ranks 593^rd among the cities with the highest AQI levels in the world.

Map

Chiang Rai

Major Air Pollutants
Chiang Rai

Particulate Matter(PM₂.₅)

18µg/m³

Particulate Matter(PM₁₀)

22µg/m³

Carbon Monoxide(CO)

178ppb

Sulfur Dioxide(SO₂)

2ppb

Nitrogen Dioxide(NO₂)

5ppb

Ozone(O₃)

27ppb

AQI Graph

Historical Air Quality Data
Chiang Rai

24 Hours

AQI (US)

Chiang Rai

AQI (US)

18-07-2026Time19-07-2026

Time	Chiang Rai
2:31am	54
3:01am	55
3:31am	55
4:01am	55
4:31am	56
5:01am	58
5:31am	57
6:01am	55
6:31am	55
7:01am	58
7:31am	58
8:01am	63
8:31am	62
9:01am	62
9:31am	62
10:01am	55
10:31am	46
11:01am	61
11:31am	59
12:01pm	60
12:31pm	60
1:01pm	64
1:31pm	68
2:01pm	66
2:31pm	67
3:01pm	67
3:31pm	66
4:01pm	66
4:31pm	66
5:01pm	65
5:31pm	65
6:01pm	66
6:31pm	66
7:01pm	68
7:31pm	68
8:01pm	68
8:31pm	68
9:01pm	66
9:31pm	67
10:01pm	65
10:31pm	65
11:01pm	65
11:31pm	65
12:01am	65
12:31am	65
1:01am	65
1:31am	65
2:01am	63
2:31am	63

Min. AQI (US)10:31am

Max. AQI (US)1:31pm

Want air quality data?

AQI (US) Trends - Annual Air Quality Changes
Chiang Rai, Chiang Rai, Thailand

AQI (US)

Chiang Rai's Locations
Real-time Air Pollution Level

locations

Status

AQI (US)

PM₂.₅(µg/m³)

PM₁₀(µg/m³)

Temp.(°C)

Humi.(%)

Good

Good

Moderate

Moderate

Moderate

Moderate

Moderate

Moderate

Moderate

Moderate

Moderate

Moderate

Moderate

Moderate

Moderate

Good

Chiang Rai Chiang Saen Road

Moderate

Chiang Rai Hospital

Moderate

Chiangrai Gaia Station 01

Moderate

Chiangrai Gaia Station 02

Moderate

Chiangrai Gaia Station 03

Moderate

Chiangrai Gaia Station 07

Moderate

Chor 3002

Moderate

Daynhaa Dongmada Road

Moderate

Moderate

Moderate

Moderate

Moderate

Moderate

Moderate

Moderate

Moderate

Moderate

Moderate

Moderate

Natural Resources And Environment Office

Moderate

Moderate

Moderate

Moderate

Moderate

Moderate

Moderate

Moderate

Moderate

Moderate

Thailand's Metro Cities
Air Quality Index

Chiang Mai

Hua Hin

Nakhon Ratchasima

Pattaya City

Phitsanulok

Phra Nakhon Si Ayutthaya

Phuket

Udon Thani

Air Quality Calendar 2026
Chiang Rai

2026

AQI (US)

Health Advice For People Living In
Chiang Rai

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 (US)

Air PurifierTurn On

Car FilterMust

N95 MaskMust

Stay IndoorMust

Prevent Health Problems: Understand Your Risks

Chiang Rai

Asthma

Heart Issues

Allergies

Sinus

Cold/Flu

Chronic (COPD)

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 2026
Thailand

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

Most Polluted Cities Live Ranking 2026

World's Most PollutedCity Rankings (2025)

World's Most PollutedCountry Rankings(2025)

RankCityAQI Status

Standard Value

Khon Kaen, Khon Kaen

Moderate

2xabove Standard

Chiang Mai, Chiang Mai

Moderate

2xabove Standard

Ban Mae Cho, Chiang Mai

Moderate

2xabove Standard

Ban Mae Kha Tai, Chiang Mai

Moderate

2xabove Standard

Samut Songkhram, Samut Songkhram

Moderate

2xabove Standard

Ban Ton Pao, Chiang Mai

Moderate

2xabove Standard

Nakhon Phanom, Nakhon Phanom

Moderate

2xabove Standard

Maha Sarakham, Maha Sarakham

Moderate

2xabove Standard

Chachoengsao, Chachoengsao

Moderate

2xabove Standard

10.

Nakhon Ratchasima, Nakhon Ratchasima

Moderate

2xabove Standard

Last Updated: 18 Jul 2026, 07:37 PM

AQI City Rankings

Air Quality Solutions For Chiang Rai
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

Prana Air offers the solutions of air quality monitoring and clean air machine for Chiang Rai

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 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.

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 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.

Chiang Rai's AQI Data Analytics Solutions
Air quality data monitoring platforms

Mobile App

Smart TV App

Web Dashboard

API

Widgets

Air Quality FAQs
at Chiang Rai

Frequently Asked Questions About Air Quality

1. What is the current AQI (US) level in Chiang Rai?

The current real-time AQI (US) level in Chiang Rai is 63 (Moderate) due to recent rainfall by 0.16mm/hr. This was last updated 2026-07-19 02:31 (Local Time).

2. When was the best AQI (US) level in Chiang Rai in the last 24 hours?

The best AQI (US) level was 46 (Good) at 10:31 AM (Local Time) during the last 24 hours.

3. When was the worst AQI (US) level in Chiang Rai in the last 24 hours?

The worst AQI (US) level was 68 (Moderate) at 1:31 PM (Local Time) during the last 24 hours.

4. What is the current trend of AQI (US) levels in Chiang Rai during last 24 hours?

The AQI (US) levels in Chiang Rai have been fluctuating throughout the last 24 hours. The levels have increased by highest 68 at 1:31 PM (Local Time), lowest 46 at 10:31 AM (Local Time).

5. What actions are recommended as per the current AQI (US) level in Chiang Rai?

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