AQI Logo
AQI Logo
  • Ranking
  • Products
  • Resources

AQI Standard
AQI-USAQI-US

Preferred Language
English-INEnglish-IN


AQI Logo

Real-time Air quality and Weather data around the world

  • About AQI
  • About Us
  • Contact Us
  • AQI Monitor
  • Air Quality Blog
  • Climate Change
  • Community AQI Monitor
  • World Air Quality Report
  • Air Quality
  • AQI App
  • AQI TV App
  • AQI Map
  • AQI APIs
  • AQI Widgets
  • Web Dashboard
  • Rankings
  • Live AQI City Ranking
  • Historic AQI City Ranking
  • Historic AQI Country Ranking
  • Weather Ranking
  • Location
  • +91 73918 73918 icon+91 73918 73918
  • info@purelogic.in icon[email protected]
  • 706, 7th Floor, Crown Heights, Rohini Sec-10, Delhi 110085, INDIA icon706, 7th Floor, Crown Heights, Rohini Sec-10, Delhi 110085, INDIA
  • Support Desk
  • Find us on:
  • instagram icon
  • twitter (X) icon
  • linkedin icon
  • youtube icon
  • facebook icon

Terms & Conditions

Privacy Policy

© 2025 AQI, All rights reserved

Want to Buy AQI Monitor?Get a FREE AQI Monitor to Join the Community
MapMap
Climate ChangeClimate Change
Near Me?Near Me?
  • Dashboard
  • France
  • Hauts De France
  • Lens
  • CO
Lens
AQIHistoryPM2.5PM10COSO2NO2O3
Live

Lens Carbon Monoxide (CO) Level

Hauts De France, France

location image
CO's Icon
Carbon Monoxide (CO)

53ppb



Good

Last Updated: 2025-07-19 01:09:42 AM (Local Time)

Good CO level in Lens
AQI LogoMap

Lens

Good
08330
Moderate
16670
Poor
25000
Unhealthy
33330
Severe
41670
Hazardous
50000+

What is the Current CO Level?

Lens

The current CO level in Lens based on the average air quality level across the city is 53 ppb, making it healthy and safe for everyone.


65.8xBelow

The current CO level in Lens is 65.8x Below the recommended WHO guideline of 3490 ppb.

Trending in France

Is Poor Air Quality in Gyms Holding Back Your Fitness Goals?

Is Poor Air Quality in Gyms Holding Back Your Fitness Goals?

City Climate Change Severity Analysis is NOW LIVE on AQI.in!📢

City Climate Change Severity Analysis is NOW LIVE on AQI.in!📢

AQI Graph

Historical Air Quality Data

Lens

24 Hours
CO
Lens
CO (ppb)
.
18-07-2025Time19-07-2025
TimeLens
01 AM48
02 AM60
03 AM30
04 AM50
05 AM60
06 AM51
07 AM74
08 AM54
09 AM55
10 AM74
11 AM67
12 PM18
01 PM63
02 PM64
03 PM97
04 PM54
05 PM46
06 PM64
07 PM78
08 PM59
09 PM64
10 PM56
11 PM56
12 AM56
01 AM53
18
Min.at 12:09 PM on 18th Jul
97
Max.at 3:09 PM on 18th Jul

0/24

Hours

Hours in which the exposure is above the recommended WHO daily guideline 3490ppb.

WHO Guideline

Want air quality data?

AQI Logo

Download 2024 Annual Data

World Air Quality Report

Globe

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..

PM Image

Uncovering the Sources of Carbon Monoxide (CO): Where Does It Come From?

Biomass burning

Biomass burning

Burning wood, crop residues, and organic materials.
Power plants

Power plants

Emissions from burning fossil fuels in power plants.
Fireplaces

Fireplaces

Emissions from burning wood or coal in fireplaces.
Road traffic

Road traffic

Overall contributions from vehicles exhaust.
Vehicles engines

Vehicles engines

Exhaust emissions from cars and trucks.

Short-Term CO Exposure Impacts

Fatigue

Fatigue

Feeling tiredness or lack of energy.
Chest pain

Chest pain

Discomfort or pain in the chest area.
Confusion

Confusion

Frequent difficulty in thinking clearly.
Flu-like symptoms

Flu-like symptoms

Symptoms like headache and nausea.
Weakness

Weakness

Frequent weakness or lack of strength.

Health Advice Based on Current CO Level In

Lens

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

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

Get an Air Purifier

Recommendations by Prana Air Logo

CO Monitor

CO Monitor

Monitor real-time CO levels to ensure you're breathing clean air.

CO Sensor

CO Sensor

Stay safe and keep informed about the CO levels in your area.

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 Carbon Monoxide (CO)?

Know More About CO Sensor
Image of co

Air Quality FAQs

at Lens

Frequently Asked Questions About Air Quality

What is the current CO level in Lens?

The current real-time CO level in Lens is 53 ppb (Good). This was last updated 2025-07-19 01:09:42 AM (Local Time).

When was the best CO level in Lens in the last 24 hours?

The best CO level was 18 ppb (Good) at 12:09 PM (Local Time) during the last 24 hours.

When was the worst CO level in Lens in the last 24 hours?

The worst CO level was 97 ppb (Good) at 3:09 PM (Local Time) during the last 24 hours.

What is the current trend of CO levels in Lens during last 24 hours?

The CO levels in Lens have been fluctuating throughout the last 24 hours. The levels have increased by highest 97 ppb at 3:09 PM (Local Time), lowest 18 ppb at 12:09 PM (Local Time).

What actions are recommended as per the current CO level in Lens?

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