AQI PM2.5 PM10 CO SO2 NO2 O3

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Kowloon Air Quality Index (AQI) | Air Pollution

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

Last Updated: 2025-06-03 03:54:33 PM (Local Time)

Live AQI

Air Quality is

Moderate

pm10 : 20 µg/m³

PM2.5 : 9 µg/m³

Good

050

Moderate

100

Poor

150

Unhealthy

200

Severe

300

Hazardous

301+

29 °C

Last Updated: 2025-06-03 03:54:33 PM (Local Time)

Map

Kowloon

Major Air Pollutants
Kowloon

Particulate Matter(PM2.5)

9µg/m³

Particulate Matter(PM10)

20µg/m³

Carbon Monoxide(CO)

363ppb

Sulfur Dioxide(SO2)

2ppb

Nitrogen Dioxide(NO2)

21ppb

Ozone(O3)

15ppb

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AQI Graph

Historical Air Quality Data
Kowloon

24 Hours

AQI

Kowloon

Want air quality data?

AQI Trends - Annual Air Quality Changes
Kowloon, Hong Kong, China

AQI

Year

AQI

Annual AQI Trends

2020

51AQI

2021

56AQI

10%

Rise

2022

54AQI

-4%

Fall

2023

54AQI

No Change

2024

55AQI

Rise

2025

66AQI

20%

Rise

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

Rise (Worsened AQI)

Most & Least Polluted Months

Most PollutedDecember, 202486AQI

Least PollutedJuly, 202025AQI

* This data analysis is from year 2020 - 2025

Kowloon's Locations
Real-time Air Pollution Level

Location

Status

AQI

PM2.5(µg/m³)

PM10(µg/m³)

Temp.(°C)

Humi.(%)

Kwun Tong

Moderate

Mong Kok

Moderate

Sham Shui Po

Good

China's Metro Cities
Air Quality Index

Beijing

Chengdu

Chongqing

Dongguan

Guangzhou

Shanghai

Shenyang

Shenzhen

Air Quality Calendar 2025
Kowloon

2025

AQI

January

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
29 Dec -	30 Dec -	31 Dec -	1 Jan 104	2 Jan 127	3 Jan 97	4 Jan 100
5 Jan 92	6 Jan 97	7 Jan 90	8 Jan 100	9 Jan 103	10 Jan 79	11 Jan 89
12 Jan 66	13 Jan 72	14 Jan 67	15 Jan 75	16 Jan 104	17 Jan 83	18 Jan 95
19 Jan 86	20 Jan 88	21 Jan 82	22 Jan 80	23 Jan 78	24 Jan 66	25 Jan 59
26 Jan 49	27 Jan 54	28 Jan 54	29 Jan 79	30 Jan 59	31 Jan 59	1 Feb 49

February

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
26 Jan 49	27 Jan 54	28 Jan 54	29 Jan 79	30 Jan 59	31 Jan 59	1 Feb 49
2 Feb 53	3 Feb 34	4 Feb 44	5 Feb 69	6 Feb 60	7 Feb 55	8 Feb 60
9 Feb 54	10 Feb 59	11 Feb 59	12 Feb 56	13 Feb 79	14 Feb 76	15 Feb 79
16 Feb 108	17 Feb 85	18 Feb 114	19 Feb 70	20 Feb 78	21 Feb 75	22 Feb 67
23 Feb 48	24 Feb 55	25 Feb 76	26 Feb 82	27 Feb 74	28 Feb 69	1 Mar 70

March

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
23 Feb 48	24 Feb 55	25 Feb 76	26 Feb 82	27 Feb 74	28 Feb 69	1 Mar 70
2 Mar 58	3 Mar 52	4 Mar 52	5 Mar 45	6 Mar 39	7 Mar 49	8 Mar 56
9 Mar 62	10 Mar 67	11 Mar 66	12 Mar 61	13 Mar 61	14 Mar 61	15 Mar 51
16 Mar 39	17 Mar 70	18 Mar 62	19 Mar 72	20 Mar 72	21 Mar 76	22 Mar 71
23 Mar 73	24 Mar 73	25 Mar 71	26 Mar 58	27 Mar 59	28 Mar 61	29 Mar 41
30 Mar 37	31 Mar 38	1 Apr 46	2 Apr 50	3 Apr 58	4 Apr 61	5 Apr 55

April

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
30 Mar 37	31 Mar 38	1 Apr 46	2 Apr 50	3 Apr 58	4 Apr 61	5 Apr 55
6 Apr 69	7 Apr 72	8 Apr 77	9 Apr 64	10 Apr 64	11 Apr 61	12 Apr 56
13 Apr 123	14 Apr 128	15 Apr 126	16 Apr 97	17 Apr 84	18 Apr 71	19 Apr 60
20 Apr 56	21 Apr 55	22 Apr 57	23 Apr 54	24 Apr 49	25 Apr 53	26 Apr 51
27 Apr 59	28 Apr 66	29 Apr 62	30 Apr 70	1 May 63	2 May 77	3 May 78

May

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
27 Apr 59	28 Apr 66	29 Apr 62	30 Apr 70	1 May 63	2 May 77	3 May 78
4 May 63	5 May 59	6 May 53	7 May 54	8 May 61	9 May 45	10 May 57
11 May 54	12 May 58	13 May 62	14 May 58	15 May 49	16 May 42	17 May 38
18 May 38	19 May 43	20 May 37	21 May 47	22 May 41	23 May 43	24 May 48
25 May 65	26 May 63	27 May 68	28 May 58	29 May 57	30 May 46	31 May 60

June

Sun.	Mon.	Tue.	Wed.	Thu.	Fri.	Sat.
1 Jun 60	2 Jun -	3 Jun -	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
Kowloon

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 On
Car FilterMust
N95 MaskMust
Stay IndoorMust

Must turn on the air purifier to enjoy fresh air.

Prevent Health Problems: Understand Your Risks

Kowloon

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

Mid. Chances of Asthma

Asthma

Risk of Asthma symptoms is Mid. 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.

Most Polluted Cities 2025
China

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

Aksu, China

Kashgar, China

Hotan, China

Lanzhou, China

Huaian, China

Jiangyin, China

Shaoyang, China

Bengbu, China

Yiyang, China

10.

Yangshe, China

Moderate

6xabove Standard

Last Updated: 03 Jun 2025, 09:16 AM

AQI City Rankings

Air Quality Solutions For Kowloon
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 Kowloon

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 Kowloon

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 Kowloon

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 Kowloon

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.

Kowloon'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 Kowloon

Frequently Asked Questions About Air Quality

What is the current AQI level in Kowloon?

The current real-time AQI level in Kowloon is 51 (Moderate) due to recent rainfall by 0.05mm/hr. This was last updated 2025-06-03 03:54:33 PM (Local Time).

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

The best AQI level was 37 (Good) at 1:09 PM (Local Time) during the last 24 hours.

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

The worst AQI level was 61 (Moderate) at 5:09 AM (Local Time) during the last 24 hours.

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

The AQI levels in Kowloon have been fluctuating throughout the last 24 hours. The levels have increased by highest 61 at 5:09 AM (Local Time), lowest 37 at 1:09 PM (Local Time).

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

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