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The AQI complication on an Apple Watch measures the Air Quality Index in your area.

‘What is AQI on an Apple Watch?’: How to view the Air Quality Index on your Apple Watch with the AQI complication

The AQI complication on an Apple Watch measures the Air Quality Index in your area. Here's how the EPA calculates it, and how to use it on your watch.

President Trump keeps falsely saying the US has the ‘world’s cleanest and safest air.’ Actually, he’s making pollution worse.

The US doesn't have the cleanest air in the world. In fact, measured in terms of PM 2.5, the country comes in seventh, and it is getting worse.

NEA has started issuing daily advisories, and haze may hit Singapore as soon as this week

You can continue with your daily activities today, but keep an eye out for the daily PSI readings.

The haze is making a comeback in August, and some Malaysian regions are already affected

In addition to the haze, Singapore is expected to have a “dry and warm” August, with daily temperatures forecast to exceed 34°C on some days.
An oil refinery on Puget Sound, near Seattle.

These 17 cities have the worst air quality in the entire country

Air quality is plateauing in the US. INSIDER analyzed EPA data to find the cities with the worst air quality so far in 2019.

Air pollution kills more people each year than smoking — but it’s not the only dangerous pollutant you encounter on a daily basis

Today marks the 35th annual World Environment Day, and this year's focus is air pollution. Here's how various kinds of pollution affect your health.
The air inside your home is usually worse than the air on the streets or in crowded bars.

How to test and improve the air quality in your home — because indoor air is shockingly worse than outdoor air

We assume that the air we breathe in our homes and workspaces are clean — they're not. Here's how to test and improve the indoor air around you.

Madrid’s ban on cars cut traffic on its busiest street by a third — and other cities are cracking down

Madrid joins a long list of cities that are restricting cars in an effort to reduce traffic and air pollution.