Tseung Kwan O Tunnel Carbon Monoxide (CO) Level
Sai Kung District, Hong Kong, China
274ppb
Last Updated: 16 Nov 2025, 05:34am (Local Time)
MapTseung Kwan O Tunnel
What is the Current CO Level?
Tseung Kwan O Tunnel
The current CO level at Tseung Kwan O Tunnel is 274 ppb making it healthy and safe for everyone in the area.
The current CO level in Tseung Kwan O Tunnel is 12.7x Below the recommended WHO guideline of 3490 ppb.
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AQI Graph
Historical Air Quality Data
Tseung Kwan O Tunnel
Download 2024 Annual Data
World Air Quality Report
Do you know CO emissions in the atmosphere can affect the greenhouse gas level? It is because CO emission causes global and climate changes in the atmosphere by increasing or changing the sea and land temperatures. It makes changes in ecosystems and storm activity and affects other weather events..
Uncovering the Sources of Carbon Monoxide (CO): Where Does It Come From?
Biomass burning
Burning wood, crop residues, and organic materials.
Power plants
Emissions from burning fossil fuels in power plants.
Fireplaces
Emissions from burning wood or coal in fireplaces.
Road traffic
Overall contributions from vehicles exhaust.
Vehicles engines
Exhaust emissions from cars and trucks.Short-Term CO Exposure Impacts
Fatigue
Feeling tiredness or lack of energy.
Chest pain
Discomfort or pain in the chest area.
Confusion
Frequent difficulty in thinking clearly.
Flu-like symptoms
Symptoms like headache and nausea.
Weakness
Frequent weakness or lack of strength.Why you should care about Carbon Monoxide (CO)?
Know More About CO Sensor
Air Quality FAQs
at Tseung Kwan O Tunnel
Frequently Asked Questions About Air Quality
What is the current CO level in Tseung Kwan O Tunnel?
The current real-time CO level in Tseung Kwan O Tunnel is 274 ppb (Good). This was last updated 16 Nov 2025, 05:34am (Local Time).
When was the best CO level in Tseung Kwan O Tunnel in the last 24 hours?
The best CO level was 225 ppb (Good) at 8:04 PM (Local Time) during the last 24 hours.
When was the worst CO level in Tseung Kwan O Tunnel in the last 24 hours?
The worst CO level was 357 ppb (Good) at 1:04 PM (Local Time) during the last 24 hours.
What is the current trend of CO levels in Tseung Kwan O Tunnel during last 24 hours?
The CO levels in Tseung Kwan O Tunnel have been fluctuating throughout the last 24 hours. The levels have increased by highest 357 ppb at 1:04 PM (Local Time), lowest 225 ppb at 8:04 PM (Local Time).
What actions are recommended as per the current CO level in Tseung Kwan O Tunnel?
The air quality is satisfactory, and air pollution poses little or no risk. No special precautions are needed; enjoy outdoor activities freely.
