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Douliu
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Live

Douliu Ozone (O3) Level

Yunlin, Taiwan

location image
O3's Icon
Ozone (O3)

21ppb



Good

Last Updated: 2025-07-14 10:54:27 AM (Local Time)

Good O3 level in Douliu
AQI LogoMap

Douliu

Good
050
Moderate
100
Poor
168
Unhealthy
208
Severe
748
Hazardous
1250+

What is the Current O3 Level?

Douliu

The current O3 level in Douliu based on the average air quality level across the city is 21 ppb, making it healthy and safe for everyone.


2.4xBelow

The current O3 level in Douliu is 2.4x Below the recommended WHO guideline of 50.96 ppb.

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Historical Air Quality Data

Douliu

24 Hours
O3
Douliu
O3 (ppb)
.
13-07-2025Time14-07-2025
TimeDouliu
11 AM26
12 PM28
01 PM27
02 PM25
03 PM25
04 PM25
05 PM25
06 PM25
07 PM23
08 PM20
09 PM19
10 PM18
11 PM18
12 AM19
01 AM20
02 AM20
03 AM20
04 AM21
05 AM21
06 AM21
07 AM21
08 AM12
09 AM14
10 AM19
12
Min.at 8:09 AM on 14th Jul
28
Max.at 12:09 PM on 13th Jul

0/24

Hours

Hours in which the exposure is above the recommended WHO daily guideline 50.96ppb.

WHO Guideline

Want air quality data?

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Download 2024 Annual Data

World Air Quality Report

Globe

Do you know that Ozone's total mass is 3 billion metric tons in the atmosphere? It looks like a lot but has only 0.00006% of the atmosphere. Besides, Ozone's peak concentration is 32 kilometres above the Earth's surface.

PM Image

Uncovering the Sources of Ozone (O3): Where Does It Come From?

Refineries

Refineries

Industrial processes emit substances.
Power plants

Power plants

Emissions from burning fossil fuels.
Paints evaporations

Paints evaporations

Vocs from paints react with sunlight.
Transportation

Transportation

Diesel operated vehicles reacts and form ozone.

Short-Term O3 Exposure Impacts

Chest pain

Chest pain

Discomfort or pain in the chest due to respiratory stress.
Breathing shortness

Breathing shortness

Difficulty in breathing or feeling of breathlessness.
Respiratory irritation

Respiratory irritation

Inflammation and irritation of the respiratory tract.
Wheezing and coughing

Wheezing and coughing

Whistling sound and persistent cough.
Trigger asthma attacks

Trigger asthma attacks

Aggravation of asthma symptoms.

Health Advice Based on Current O3 Level In

Douliu

  • Air Purifier
    Air PurifierTurn Off
  • Car Filter
    Car FilterAdvisable
  • N95 Mask
    N95 MaskAdvisable
  • Stay Indoor
    Stay IndoorAdvisable

As per the current O3, turn off the air purifier.

Get an Air Purifier

Recommendations by Prana Air Logo

O3 Monitor

O3 Monitor

Check real-time O3 levels to ensure you're breathing clean air.

O3 Sensor

O3 Sensor

Monitor 03 level in your area to stay safe with 03 sensor.

Car Filter

Car Filter

Trap particles before they enter your vehicle, ensuring a safe and healthy ride.

N95 Mask

N95 Mask

Protect yourself from harmful airborne particles by wearing an N95 mask.

Why you should care about Ozone (O3)?

Know More About O3 Sensor
Image of o3

Air Quality FAQs

at Douliu

Frequently Asked Questions About Air Quality

What is the current O3 level in Douliu?

The current real-time O3 level in Douliu is 21 ppb (Good). This was last updated 2025-07-14 10:54:27 AM (Local Time).

When was the best O3 level in Douliu in the last 24 hours?

The best O3 level was 12 ppb (Good) at 8:09 AM (Local Time) during the last 24 hours.

When was the worst O3 level in Douliu in the last 24 hours?

The worst O3 level was 28 ppb (Good) at 12:09 PM, Jul 13, 2025 (Local Time) during the last 24 hours.

What is the current trend of O3 levels in Douliu during last 24 hours?

The O3 levels in Douliu have been fluctuating throughout the last 24 hours. The levels have increased by highest 28 ppb at 12:09 PM, Jul 13, 2025 (Local Time), lowest 12 ppb at 8:09 AM (Local Time).

What actions are recommended as per the current O3 level in Douliu?

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