AQI PM2.5 PM10 CO SO2 NO2 O3

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Ha Long Air Quality Index (AQI) | Air Pollution

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

Last Updated: 2025-06-05 02:24:34 AM (Local Time)

Live AQI

Air Quality is

Good

pm10 : 29 µg/m³

PM2.5 : 10 µg/m³

Good

050

Moderate

100

Poor

150

Unhealthy

200

Severe

300

Hazardous

301+

26 °C

Last Updated: 2025-06-05 02:24:34 AM (Local Time)

Map

Ha Long

Major Air Pollutants
Ha Long

Particulate Matter(PM2.5)

10µg/m³

Particulate Matter(PM10)

29µg/m³

Carbon Monoxide(CO)

92ppb

Sulfur Dioxide(SO2)

12ppb

Nitrogen Dioxide(NO2)

6ppb

Ozone(O3)

7ppb

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AQI Graph

Historical Air Quality Data
Ha Long

24 Hours

AQI

Ha Long

Want air quality data?

AQI Trends - Annual Air Quality Changes
Ha Long, Quang Ninh, Vietnam

AQI

Year

AQI

Annual AQI Trends

2020

26AQI

2021

25AQI

-4%

Fall

2022

22AQI

-12%

Fall

2023

28AQI

27%

Rise

2024

45AQI

61%

Rise

2025

80AQI

78%

Rise

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

30%

Rise (Worsened AQI)

Most & Least Polluted Months

Most PollutedJanuary, 2025116AQI

Least PollutedApril, 20210AQI

* This data analysis is from year 2020 - 2025

Ha Long's Locations
Real-time Air Pollution Level

Location

Status

AQI

PM2.5(µg/m³)

PM10(µg/m³)

Temp.(°C)

Humi.(%)

Ha Long

Moderate

Quang Ninh Gan KCN Cai Lan

Moderate

Quang Ninh K11 Minh Thanh

Good

Quang Ninh Nam Cau Trang

Moderate

Quang Ninh Yen My

Moderate

Vietnam's Metro Cities
Air Quality Index

Can Tho

Hanoi

Ho Chi Minh City

Thanh pho Thai Nguyen

temp.25°C

hum.94%

Air Quality Calendar 2025
Ha Long

2025

AQI

January

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
29 Dec -	30 Dec -	31 Dec -	1 Jan 136	2 Jan 134	3 Jan 110	4 Jan 107
5 Jan 119	6 Jan 127	7 Jan 115	8 Jan 116	9 Jan 128	10 Jan 88	11 Jan 100
12 Jan 101	13 Jan 119	14 Jan 132	15 Jan 128	16 Jan 135	17 Jan 145	18 Jan 155
19 Jan 157	20 Jan 173	21 Jan 135	22 Jan 122	23 Jan 110	24 Jan 106	25 Jan 88
26 Jan 61	27 Jan 80	28 Jan 76	29 Jan 118	30 Jan 88	31 Jan 89	1 Feb 79

February

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
26 Jan 61	27 Jan 80	28 Jan 76	29 Jan 118	30 Jan 88	31 Jan 89	1 Feb 79
2 Feb 67	3 Feb 54	4 Feb 64	5 Feb 94	6 Feb 78	7 Feb 59	8 Feb 66
9 Feb 81	10 Feb 126	11 Feb 131	12 Feb 136	13 Feb 121	14 Feb 112	15 Feb 116
16 Feb 73	17 Feb 98	18 Feb 65	19 Feb 82	20 Feb 78	21 Feb 90	22 Feb 92
23 Feb 65	24 Feb 72	25 Feb 91	26 Feb 74	27 Feb 118	28 Feb 73	1 Mar 92

March

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
23 Feb 65	24 Feb 72	25 Feb 91	26 Feb 74	27 Feb 118	28 Feb 73	1 Mar 92
2 Mar 73	3 Mar 71	4 Mar 72	5 Mar 75	6 Mar 65	7 Mar 68	8 Mar 87
9 Mar 99	10 Mar 116	11 Mar 85	12 Mar 82	13 Mar 69	14 Mar 64	15 Mar 62
16 Mar 54	17 Mar 75	18 Mar 72	19 Mar 76	20 Mar 75	21 Mar 64	22 Mar 66
23 Mar 59	24 Mar 62	25 Mar 64	26 Mar 66	27 Mar 73	28 Mar 70	29 Mar 52
30 Mar 41	31 Mar 43	1 Apr 51	2 Apr 58	3 Apr 64	4 Apr 116	5 Apr 79

April

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
30 Mar 41	31 Mar 43	1 Apr 51	2 Apr 58	3 Apr 64	4 Apr 116	5 Apr 79
6 Apr 78	7 Apr 77	8 Apr 82	9 Apr 75	10 Apr 73	11 Apr 70	12 Apr 75
13 Apr 73	14 Apr 78	15 Apr 79	16 Apr 82	17 Apr 76	18 Apr 76	19 Apr 71
20 Apr 65	21 Apr 67	22 Apr 67	23 Apr 62	24 Apr 62	25 Apr 56	26 Apr 59
27 Apr 56	28 Apr 56	29 Apr 75	30 Apr 64	1 May 58	2 May 62	3 May 60

May

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
27 Apr 56	28 Apr 56	29 Apr 75	30 Apr 64	1 May 58	2 May 62	3 May 60
4 May 65	5 May 68	6 May 62	7 May 61	8 May 61	9 May 61	10 May 61
11 May 55	12 May 62	13 May 59	14 May 58	15 May 55	16 May 57	17 May 54
18 May 54	19 May 53	20 May 53	21 May 56	22 May 53	23 May 49	24 May 49
25 May 53	26 May 58	27 May 59	28 May 59	29 May 54	30 May 53	31 May 51

June

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
1 Jun 49	2 Jun 50	3 Jun 47	4 Jun -	5 Jun -	6 Jun -	7 Jun -
8 Jun -	9 Jun -	10 Jun -	11 Jun -	12 Jun -	13 Jun -	14 Jun -
15 Jun -	16 Jun -	17 Jun -	18 Jun -	19 Jun -	20 Jun -	21 Jun -
22 Jun -	23 Jun -	24 Jun -	25 Jun -	26 Jun -	27 Jun -	28 Jun -
29 Jun -	30 Jun -	1 Jul -	2 Jul -	3 Jul -	4 Jul -	5 Jul -

Health Advice For People Living In
Ha Long

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

Solutions for Current AQI

Air PurifierTurn Off
Car FilterAdvisable
N95 MaskAdvisable
Stay IndoorAdvisable

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

Prevent Health Problems: Understand Your Risks

Ha Long

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

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.

Most Polluted Cities 2025
Vietnam

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

Thanh pho Song Cong, Vietnam

Ninh Binh, Vietnam

Thanh pho Thai Nguyen, Vietnam

Moderate

4xabove Standard

Thanh pho Tam Ky, Vietnam

Thai Nguyen, Vietnam

Thanh pho Hung Yen, Vietnam

Moderate

4xabove Standard

Ham Yen District, Vietnam

Hai Duong, Vietnam

Viet Tri, Vietnam

10.

Dan Chu, Vietnam

Moderate

4xabove Standard

Last Updated: 04 Jun 2025, 07:42 PM

AQI City Rankings

Air Quality Solutions For Ha Long
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 Ha Long

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 Ha Long

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 Ha Long

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 Ha Long

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.

Ha Long'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

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 Ha Long

Frequently Asked Questions About Air Quality

What is the current AQI level in Ha Long?

The current real-time AQI level in Ha Long is 50 (Good) due to recent rainfall by 1.12mm/hr. This was last updated 2025-06-05 02:24:34 AM (Local Time).

When was the best AQI level in Ha Long in the last 24 hours?

The best AQI level was 47 (Good) at 3:09 PM (Local Time) during the last 24 hours.

When was the worst AQI level in Ha Long in the last 24 hours?

The worst AQI level was 55 (Moderate) at 9:09 PM (Local Time) during the last 24 hours.

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

The AQI levels in Ha Long have been fluctuating throughout the last 24 hours. The levels have increased by highest 55 at 9:09 PM (Local Time), lowest 47 at 3:09 PM (Local Time).

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

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