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Lang Son Air Quality Index (AQI) | Air Pollution

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

Last Updated: 2026-10-01 19:01 (Local Time)

Live AQI

55AQI (US)

Air Quality is

Moderate

PM2.5 : 14 µg/m³

pm10 : 38 µg/m³

Good

050

Moderate

100

Poor

150

Unhealthy

200

Severe

300

Hazardous

301+

27 °C

Last Updated: 2026-10-01 19:01 (Local Time)

Rank542^nd

Currently, Lang Son ranks 542^nd among the cities with the highest AQI levels in the world.

Map

Lang Son

Major Air Pollutants
Lang Son

Particulate Matter(PM₂.₅)

14µg/m³

Particulate Matter(PM₁₀)

38µg/m³

Carbon Monoxide(CO)

404ppb

Sulfur Dioxide(SO₂)

1ppb

Nitrogen Dioxide(NO₂)

4ppb

Ozone(O₃)

29ppb

Trending in Vietnam

What Is PM2.5? And Why Does That Number Matter?

AQI Graph

Historical Air Quality Data
Lang Son

24 Hours

AQI (US)

Lang Son

AQI (US)

30-09-2026Time01-10-2026

Time	Lang Son
7:01pm	40
7:31pm	38
8:01pm	50
8:31pm	50
9:01pm	52
9:31pm	51
10:01pm	52
10:31pm	51
11:01pm	57
11:31pm	58
12:01am	63
12:31am	60
1:01am	62
1:31am	62
2:01am	58
2:31am	57
3:01am	50
3:31am	50
4:01am	51
4:31am	48
5:01am	46
5:31am	50
6:01am	51
6:31am	52
7:01am	54
7:31am	53
8:01am	53
8:31am	54
9:01am	48
9:31am	51
10:01am	46
10:31am	48
11:01am	48
11:31am	50
12:01pm	49
12:31pm	48
1:01pm	51
1:31pm	53
2:01pm	53
2:31pm	52
3:01pm	53
3:31pm	53
4:01pm	52
4:31pm	52
5:01pm	53
5:31pm	49
6:01pm	42
6:31pm	46
7:01pm	55

Min. AQI (US)7:31pm

Max. AQI (US)12:01am

Want air quality data?

AQI (US) Trends - Annual Air Quality Changes
Lang Son, Lang Son, Vietnam

AQI (US)

Lang Son's Locations
Real-time Air Pollution Level

locations

Status

AQI (US)

PM₂.₅(µg/m³)

PM₁₀(µg/m³)

Temp.(°C)

Humi.(%)

Lang Son phuong Chi Lang TP Lang Son

Moderate

Lang Son xa Hong Phong Cao Loc

Moderate

Vietnam's Metro Cities
Air Quality Index

Can Tho

Hanoi

Ho Chi Minh City

Thai Nguyen

Air Quality Calendar 2026
Lang Son

2026

AQI (US)

Health Advice For People Living In
Lang Son

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

Lang Son

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
Vietnam

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

Cao Bang, Cao BaNg

Moderate

1xabove Standard

Ho Chi Minh City, Ho Chi Minh

Moderate

1xabove Standard

Phu Ly, Ha Nam

Moderate

1xabove Standard

Thanh pho Thai Nguyen, Thai Nguyen

Moderate

1xabove Standard

Nha Trang, Khanh Hoa

Moderate

1xabove Standard

Bac Giang, Bac Giang

Moderate

1xabove Standard

Tra Vinh, Tra Vinh

Moderate

1xabove Standard

Bac Ninh, Bac Ninh

Moderate

1xabove Standard

Hanoi, Ha Noi

Moderate

1xabove Standard

10.

Hai Duong, Hai Duong

Moderate

1xabove Standard

Last Updated: 01 Oct 2026, 12:12 PM

AQI City Rankings

Air Quality Solutions For Lang Son
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 Lang Son

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.

Lang Son's AQI Data Analytics Solutions
Air quality data monitoring platforms

Mobile App

Smart TV App

Web Dashboard

API

Widgets

Air Quality FAQs
at Lang Son

Frequently Asked Questions About Air Quality

1. What is the current AQI (US) level in Lang Son?

The current real-time AQI (US) level in Lang Son is 55 (Moderate) due to recent rainfall by 0.07mm/hr. This was last updated 2026-10-01 19:01 (Local Time).

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

The best AQI (US) level was 38 (Good) at 7:31 PM, Sep 30, 2026 (Local Time) during the last 24 hours.

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

The worst AQI (US) level was 63 (Moderate) at 12:01 AM (Local Time) during the last 24 hours.

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

The AQI (US) levels in Lang Son have been fluctuating throughout the last 24 hours. The levels have increased by highest 63 at 12:01 AM (Local Time), lowest 38 at 7:31 PM, Sep 30, 2026 (Local Time).

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

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