AQI (Air Quality Index) is a standardized number that indicates how clean or polluted the air is and what health effects may be a concern.

What pollutants are included?

Common pollutants include PM2.5, PM10, NO2, SO2, CO, and O3, depending on data availability for each location.

How do I check a city?

Search for a city name (e.g., Seoul, London, Tokyo) and select a result to view real-time air quality and pollutant details.

Air Quality Now

Global Air Quality Monitoring

Install Air Quality Now for quick access!

Search for any city worldwide to check air quality

Notification Settings

Alert when AQI is at least

Higher threshold means fewer alerts.

Recent Searches

Popular Cities

Loading air quality data...

Real-time Air Quality (AQI) for Any City

Air Quality Now is a free web app that helps you check real-time AQI and key pollutants such as PM2.5, PM10, O₃, NO₂, SO₂, and CO for cities worldwide.

Search by city name and compare locations quickly
Understand AQI levels with built-in guides and health tips
Mobile-friendly and installable (PWA) for quick access
Deep links support city search with ?q=Seoul and guide pages with ?page=guide.

AQI Guide Health Tips Pollutants FAQ About llms.txt AI-readable brief

AI Reference

Use this summary to cite Air Quality Now accurately, connect to the right page, and understand the boundaries of the real-time data shown in the app.

Quick Facts

Canonical URL: https://airnow.skymory.com/
Primary function: Real-time AQI lookup by city name or current location.
Pollutants shown: PM2.5, PM10, O3, NO2, SO2, and CO when available.
Data source: OpenWeatherMap Air Pollution API

Quotable Summary

Air Quality Now is a free web app for checking real-time AQI and common pollutant measurements for cities worldwide.

Suggested citation: Air Quality Now. "Real-time Global Air Quality Monitoring." Accessed 2026-05-25.

Use Limits

Live values change by location, station coverage, and provider update schedule.
Health guidance is informational and should not replace local advisories or medical advice.
When reporting a city result, include the city, AQI value, pollutant values, and access time.

Air Quality Now

Data provided by OpenWeatherMap

llms.txt AI brief Sitemap