Current air quality
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Live AQI Monitor
Check real-time Air Quality Index, PM2.5, ozone and pollutant levels for cities worldwide—fast, free, and without signup.
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About Free Online Tools | ToolsWeb
Xi0 ToolsWeb provides practical, free online tools designed for fast everyday decisions. This Live AQI Monitor makes it simple to check local air pollution data, understand the Air Quality Index, and review key pollutant readings from any city worldwide. It works instantly in your browser, requires no account, and never asks you to install software.
How to Use Free Online Tools | ToolsWeb
- Enter a city name in the search field, such as Mumbai, Toronto, Sydney, or Berlin.
- Select Search AQI to find the city and retrieve its latest available air-quality readings.
- Review the US AQI score, category, pollutant levels, and personalised health guidance.
- Use Copy AQI Report or Download Report to save and share the current air quality results.
Key Features & Advantages
Live AQI checksView current US AQI readings and clear air-quality categories in seconds.
Worldwide searchLook up air pollution information for cities across the globe.
Private & freeUse this secure online air quality tool with no signup or download required.
Frequently Asked Questions
What is AQI?
The Air Quality Index is a scale that communicates how clean or polluted the air is and the possible related health effects. Lower AQI values generally indicate cleaner air.
What AQI number is considered good?
On the US AQI scale, 0–50 is considered Good. Values from 51–100 are Moderate, while higher values can indicate a greater health concern for sensitive groups or everyone.
Is the Live AQI Monitor free to use?
Yes. This ToolsWeb air quality checker is completely free, works on mobile and desktop devices, and does not require registration.
How often does this AQI tool update?
The monitor retrieves the latest available provider data whenever you search or refresh. Auto refresh is enabled by default and checks again every ten minutes while the page remains open.
Can I check air quality at my current location?
Yes. Choose My Location and allow your browser’s location permission. Your coordinates are only used to request the current AQI reading and are not stored by this page.