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  • Mount Shasta
  • O3
Mount Shasta
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Live

Mount Shasta Ozone (O3) Level

California, United States

location image
O3's Icon
Ozone (O3)

37ppb



Good

Last Updated: 2025-07-14 04:25:03 AM (Local Time)

Good O3 level in Mount Shasta
AQI LogoMap

Mount Shasta

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

What is the Current O3 Level?

Mount Shasta

The current O3 level in Mount Shasta based on the average air quality level across the city is 37 ppb, making it healthy and safe for everyone.


1.3xBelow

The current O3 level in Mount Shasta is 1.3x Below the recommended WHO guideline of 50.96 ppb.

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Historical Air Quality Data

Mount Shasta

24 Hours
O3
Mount Shasta
O3 (ppb)
.
13-07-2025Time14-07-2025
TimeMount Shasta
04 AM38
05 AM37
06 AM36
07 AM37
08 AM38
09 AM35
10 AM35
11 AM36
12 PM40
01 PM39
02 PM40
03 PM40
04 PM39
05 PM42
06 PM42
07 PM40
08 PM40
09 PM42
10 PM45
11 PM43
12 AM43
01 AM42
02 AM41
03 AM40
04 AM38
35
Min.at 9:10 AM on 13th Jul
45
Max.at 10:10 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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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

Mount Shasta

  • 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
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Air Quality FAQs

at Mount Shasta

Frequently Asked Questions About Air Quality

What is the current O3 level in Mount Shasta?

The current real-time O3 level in Mount Shasta is 37 ppb (Good). This was last updated 2025-07-14 04:25:03 AM (Local Time).

When was the best O3 level in Mount Shasta in the last 24 hours?

The best O3 level was 35 ppb (Good) at 9:10 AM, Jul 13, 2025 (Local Time) during the last 24 hours.

When was the worst O3 level in Mount Shasta in the last 24 hours?

The worst O3 level was 45 ppb (Good) at 10:10 PM, Jul 13, 2025 (Local Time) during the last 24 hours.

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

The O3 levels in Mount Shasta have been fluctuating throughout the last 24 hours. The levels have increased by highest 45 ppb at 10:10 PM, Jul 13, 2025 (Local Time), lowest 35 ppb at 9:10 AM, Jul 13, 2025 (Local Time).

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

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