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Seismological Bureau Ozone (O3) Level

Heihe, Heilongjiang, China

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Ozone (O3)

20ppb



Good

Last Updated: 27 Nov 2025, 05:58pm (Local Time)

Good O3 level in Seismological Bureau
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Seismological Bureau

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

What is the Current O3 Level?

Seismological Bureau

The current O3 level at Seismological Bureau is 20 ppb making it healthy and safe for everyone in the area.


2.5xBelow

The current O3 level in Seismological Bureau is 2.5x Below the recommended WHO guideline of 50.96 ppb.

AQI Graph

Historical Air Quality Data

Seismological Bureau

Seismological Bureau
O3 (ppb)
.
26-11-2025Time27-11-2025
13
Min.at 8:04 AM on 27th Nov
19
Max.at 5:04 PM on 27th Nov

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.

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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.

Air Quality FAQs

at Seismological Bureau

Frequently Asked Questions About Air Quality

What is the current O3 level in Seismological Bureau?

The current real-time O3 level in Seismological Bureau is 20 ppb (Good). This was last updated 27 Nov 2025, 05:58pm (Local Time).

When was the best O3 level in Seismological Bureau in the last 24 hours?

The best O3 level was 13 ppb (Good) at 8:04 AM (Local Time) during the last 24 hours.

When was the worst O3 level in Seismological Bureau in the last 24 hours?

The worst O3 level was 19 ppb (Good) at 5:04 PM (Local Time) during the last 24 hours.

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

The O3 levels in Seismological Bureau remained stable over the last 24 hours as around 15.130434782608695 ppb.

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

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