AQIHistoryPM2.5PM10COSO2NO2O3
View aqi DataAQIView weather DataWeather
Live

Annan District Air Quality Index (AQI) | Air Pollution

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

Last Updated: 2025-10-21 09:16:51 AM (Local Time)

location image
Live AQI
66(AQI-US)
Air Quality is
Moderate
pm10 :  19 µg/m³
PM2.5 :  17 µg/m³
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
aqi moderate level.webp in Annan District
partly cloudy

25 °C

Partly Cloudy
Humidity
Humidity76 %
Wind Speed
Wind Speed26 km/h
UV Index
UV Index1
Last Updated: 2025-10-21 09:16:51 AM (Local Time)
Map

Annan District

Major Air Pollutants

Annan District

PM2.5's Icon

Particulate Matter(PM2.5)

17µg/m³

PM10's Icon

Particulate Matter(PM10)

19µg/m³

CO's Icon

Carbon Monoxide(CO)

268ppb

SO2's Icon

Sulfur Dioxide(SO2)

1ppb

NO2's Icon

Nitrogen Dioxide(NO2)

9ppb

O3's Icon

Ozone(O3)

23ppb

Trending in Taiwan

Red Fort in Delhi is Not Red Anymore! It is Turning Black: Air Pollution Damaging Red Fort

Red Fort in Delhi is Not Red Anymore! It is Turning Black: Air Pollution Damaging Red Fort

What’s the Connection Between Air Pollution and Blood Cancer?

What’s the Connection Between Air Pollution and Blood Cancer?

AQI Graph

Historical Air Quality Data

Annan District

24 Hours
AQI
Annan District
AQI
.
20-10-2025Time21-10-2025
55
Min.at 9:22 AM on 20th Oct
93
Max.at 5:04 PM on 20th Oct

Want air quality data?

Download 2024 Annual Data

World Air Quality Report

Globe

AQI Trends - Annual Air Quality Changes

Annan District, Tainan, Taiwan

AQI
Year
.
AQI

Annual AQI Trends

2020
58AQI
2021
65AQI
12%
Rise
2022
59AQI
-9%
Fall
2023
64AQI
8%
Rise
2024
61AQI
-5%
Fall
2025
56AQI
-8%
Fall
Overall Annual Percentage (%) change of AQI in (2020 to 2025)
0%
No Change

Most & Least Polluted Months

Most PollutedFebruary, 2021106AQI
Least PollutedJuly, 202229AQI

* This data analysis is from year 2020 - 2025

Annan District's Locations

Real-time Air Pollution Level

Location
Status
AQI
PM2.5(µg/m³)
PM10(µg/m³)
Temp.(°C)
Humi.(%)
Moderate
66
17
19
26
74

Taiwan's Metro Cities

Air Quality Index

Hsinchu City AQI

Hsinchu

53

temp.22°C
hum.94%
Kaohsiung City AQI

Kaohsiung

63

temp.27°C
hum.79%
Keelung City AQI

Keelung

60

temp.22°C
hum.100%
Tainan City AQI

Tainan

58

temp.26°C
hum.74%
Taipei City AQI

Taipei

55

temp.22°C
hum.100%

Air Quality Calendar 2025

Annan District

2025
AQI
January
1 Jan
105
2 Jan
66
3 Jan
69
4 Jan
66
5 Jan
66
6 Jan
83
7 Jan
81
8 Jan
72
9 Jan
77
10 Jan
65
11 Jan
58
12 Jan
60
13 Jan
68
14 Jan
84
15 Jan
85
16 Jan
69
17 Jan
70
18 Jan
76
19 Jan
67
20 Jan
83
21 Jan
92
22 Jan
95
23 Jan
101
24 Jan
81
25 Jan
97
26 Jan
74
27 Jan
65
28 Jan
65
29 Jan
65
30 Jan
69
31 Jan
80
February
1 Feb
63
2 Feb
63
3 Feb
62
4 Feb
72
5 Feb
79
6 Feb
84
7 Feb
69
8 Feb
67
9 Feb
57
10 Feb
62
11 Feb
73
12 Feb
73
13 Feb
59
14 Feb
70
15 Feb
62
16 Feb
85
17 Feb
98
18 Feb
89
19 Feb
73
20 Feb
91
21 Feb
62
22 Feb
69
23 Feb
55
24 Feb
66
25 Feb
76
26 Feb
96
27 Feb
103
28 Feb
79
March
1 Mar
77
2 Mar
63
3 Mar
58
4 Mar
59
5 Mar
55
6 Mar
48
7 Mar
61
8 Mar
65
9 Mar
66
10 Mar
81
11 Mar
93
12 Mar
82
13 Mar
80
14 Mar
83
15 Mar
74
16 Mar
56
17 Mar
85
18 Mar
65
19 Mar
74
20 Mar
75
21 Mar
86
22 Mar
74
23 Mar
71
24 Mar
65
25 Mar
64
26 Mar
63
27 Mar
56
28 Mar
64
29 Mar
59
30 Mar
47
31 Mar
53
April
1 Apr
40
2 Apr
63
3 Apr
62
4 Apr
71
5 Apr
75
6 Apr
65
7 Apr
72
8 Apr
73
9 Apr
67
10 Apr
65
11 Apr
63
12 Apr
55
13 Apr
86
14 Apr
74
15 Apr
87
16 Apr
78
17 Apr
71
18 Apr
60
19 Apr
56
20 Apr
56
21 Apr
56
22 Apr
54
23 Apr
54
24 Apr
51
25 Apr
50
26 Apr
64
27 Apr
62
28 Apr
57
29 Apr
68
30 Apr
59
May
1 May
60
2 May
68
3 May
67
4 May
71
5 May
57
6 May
62
7 May
56
8 May
58
9 May
44
10 May
37
11 May
42
12 May
54
13 May
52
14 May
53
15 May
47
16 May
42
17 May
40
18 May
33
19 May
32
20 May
34
21 May
30
22 May
38
23 May
36
24 May
40
25 May
52
26 May
55
27 May
54
28 May
55
29 May
44
30 May
52
31 May
56
June
1 Jun
46
2 Jun
40
3 Jun
37
4 Jun
36
5 Jun
34
6 Jun
36
7 Jun
30
8 Jun
26
9 Jun
29
10 Jun
29
11 Jun
38
12 Jun
43
13 Jun
31
14 Jun
33
15 Jun
39
16 Jun
33
17 Jun
31
18 Jun
34
19 Jun
33
20 Jun
34
21 Jun
28
22 Jun
24
23 Jun
24
24 Jun
25
25 Jun
24
26 Jun
26
27 Jun
26
28 Jun
28
29 Jun
29
30 Jun
33
July
1 Jul
31
2 Jul
35
3 Jul
36
4 Jul
38
5 Jul
36
6 Jul
33
7 Jul
32
8 Jul
37
9 Jul
39
10 Jul
34
11 Jul
37
12 Jul
41
13 Jul
43
14 Jul
45
15 Jul
45
16 Jul
45
17 Jul
45
18 Jul
45
19 Jul
45
20 Jul
37
21 Jul
39
22 Jul
39
23 Jul
47
24 Jul
48
25 Jul
48
26 Jul
44
27 Jul
45
28 Jul
40
29 Jul
39
30 Jul
42
31 Jul
44
August
1 Aug
48
2 Aug
45
3 Aug
51
4 Aug
43
5 Aug
46
6 Aug
50
7 Aug
50
8 Aug
51
9 Aug
45
10 Aug
40
11 Aug
39
12 Aug
42
13 Aug
43
14 Aug
39
15 Aug
42
16 Aug
42
17 Aug
37
18 Aug
35
19 Aug
41
20 Aug
42
21 Aug
36
22 Aug
45
23 Aug
50
24 Aug
49
25 Aug
47
26 Aug
44
27 Aug
43
28 Aug
47
29 Aug
43
30 Aug
44
31 Aug
43
September
1 Sep
45
2 Sep
45
3 Sep
46
4 Sep
51
5 Sep
52
6 Sep
48
7 Sep
38
8 Sep
40
9 Sep
39
10 Sep
40
11 Sep
43
12 Sep
45
13 Sep
43
14 Sep
44
15 Sep
46
16 Sep
51
17 Sep
51
18 Sep
48
19 Sep
45
20 Sep
44
21 Sep
46
22 Sep
56
23 Sep
50
24 Sep
45
25 Sep
47
26 Sep
55
27 Sep
53
28 Sep
44
29 Sep
50
30 Sep
52
October
1 Oct
49
2 Oct
51
3 Oct
56
4 Oct
79
5 Oct
79
6 Oct
66
7 Oct
68
8 Oct
63
9 Oct
68
10 Oct
71
11 Oct
63
12 Oct
69
13 Oct
73
14 Oct
70
15 Oct
70
16 Oct
71
17 Oct
77
18 Oct
77
19 Oct
83
20 Oct
65
21 Oct
-
22 Oct
-
23 Oct
-
24 Oct
-
25 Oct
-
26 Oct
-
27 Oct
-
28 Oct
-
29 Oct
-
30 Oct
-
31 Oct
-
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+

Most Polluted Cities 2025

Taiwan

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

Follow

1.

Ershui, Taiwan

90
Moderate
6xabove Standard

2.

Zhongli, Taiwan

78
Moderate
5xabove Standard

3.

Nantou, Taiwan

67
Moderate
4xabove Standard

4.

Hualien, Taiwan

66
Moderate
4xabove Standard

5.

Annan District, Taiwan

66
Moderate
4xabove Standard

6.

Yuanchang, Taiwan

64
Moderate
4xabove Standard

7.

Pingtung, Taiwan

63
Moderate
4xabove Standard

8.

Kaohsiung, Taiwan

63
Moderate
4xabove Standard

9.

Taoyuan District, Taiwan

62
Moderate
4xabove Standard

10.

Nangan, Taiwan

62
Moderate
4xabove Standard

Last Updated: 21 Oct 2025, 01:19 AM

AQI City Rankings

Air Quality Solutions For Annan District

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

Air Quality Monitor

Monitor the air quality
Air Quality Sensors

Air Quality Sensors

Sensors to measure the air quality
Fresh Air Machine

Fresh Air Machine

Clean the air you breathe
Car Cabin Filter

Car Cabin Filter

Purify the air in your car
N95 Mask

N95 Mask

Shield yourself from pollution
air quality solutions for offices for Annan District

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 for Annan District

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 Annan District

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 for Annan District

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 for Annan District

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 for Annan District

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 for Annan District

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 for Annan District

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 for Annan District

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 Annan District

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 for Annan District

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 for Annan District

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 Annan District

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 for Annan District

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 for Annan District

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 for Annan District

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.

Annan District's AQI Data Analytics Solutions

Air quality data monitoring platforms

Mobile AppMobile App
Smart TV AppSmart TV App
Web DashboardWeb Dashboard
APIAPI
WidgetsWidgets
aqi air quality app for Annan District
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.

Your area’s real-time data with detailed parameters.

Personalized health advice as per current AQI.

Personalized health advice as per current AQI.

Analytical data to identify trends and conditions.

Analytical data to identify trends and conditions.

Connect and control your air quality devices.

Connect and control your air quality devices.

Recent AQI Blogs

Read the latest news

Here are some latest blogs that you can go through to find out more air pollution.

Red Fort in Delhi is Not Red Anymore! It is Turning Black: Air Pollution Damaging Red Fort

Red Fort in Delhi is Not Red Anymore! It is Turning Black: Air Pollution Damaging Red Fort

18 Sept 2025Shakshi
What’s the Connection Between Air Pollution and Blood Cancer?

What’s the Connection Between Air Pollution and Blood Cancer?

13 Sept 2025Shakshi
Mercury Air Pollution in Delhi: What You’re Inhaling Without Knowing

Mercury Air Pollution in Delhi: What You’re Inhaling Without Knowing

9 Sept 2025Shakshi
India Floods 2025: How Waterlogging Is Creating a Hidden Air Pollution Crisis?

India Floods 2025: How Waterlogging Is Creating a Hidden Air Pollution Crisis?

3 Sept 2025Shakshi
No Clean Air Day in Delhi 2025: Why Even Monsoon Could Not Help?

No Clean Air Day in Delhi 2025: Why Even Monsoon Could Not Help?

28 Aug 2025Shakshi
Over 2 lakh residents reported air pollution hospitalisations in Delhi from 2022 to 2024. 

Over 2 lakh residents reported air pollution hospitalisations in Delhi from 2022 to 2024. 

21 Aug 2025Shakshi
Abu Dhabi in the Top 10 Most Polluted Cities in the World: Middle East Air Quality Crisis 2025

Abu Dhabi in the Top 10 Most Polluted Cities in the World: Middle East Air Quality Crisis 2025

19 Aug 2025Shakshi
Europe heatwave and wildfires 2025: What is happening across Spain, Portugal and neighbouring countries?

Europe heatwave and wildfires 2025: What is happening across Spain, Portugal and neighbouring countries?

13 Aug 2025Shakshi
How Air Pollution Damages Your Long-Term Financial Health?

How Air Pollution Damages Your Long-Term Financial Health?

12 Aug 2025Shakshi
Biggest Wildfire in France’s History?What It Means for Air Quality, Health, and Climate

Biggest Wildfire in France’s History?What It Means for Air Quality, Health, and Climate

7 Aug 2025Shakshi
Prana Air Logo

Prana Sense

Air Quality Monitor

Air Quality Index depicts the extent of air pollution at a particular location.

Prana Sense Air Quality MonitorPrana Sense Air Quality Monitor
Prana Air Logo

Pocket PM

Air Quality Monitor

Know the air quality around you wherever you are with the Pocket monitor to get instant air quality insights.

Pocket PM Air Quality MonitorPocket PM Air Quality Monitor
Prana Air Logo

Cair +

Indoor Air Quality Monitor

Track indoor air quality with advanced connectivity and portability for real-time air quality data.

Cair + Indoor Air Quality MonitorCair + Indoor Air Quality Monitor