Millions of people in North America have been warned about the health risks of poor air quality as toxic wildfires smoke from Canada drifts across the continent a worrying problem for many and one that may persist for several more days let's take a look at how the pollution haze generated from the wildfires creating a gas chamber in the continent.

Canadian wildfire smoke moves across continent

Smoke from Canadian wildfires turns New York City air worst in the world, officials issue alert

Morning brief: Trump may face another indictment, Canadian wildfires smoke pollute NYC, and more

Dense smoke from Canadian wildfires is coating an amber coloured hue on the New York skyline. This has caused the pollution level to rise such an extent that New York pollution level has left behind India's New Delhi or Iraq's Baghdad as well. New York tops the list of most polluted cities of the world.

Canada wildfire smoke shrouds US' states, New York becomes most polluted city

Experts believe Canadian wildfires prompted spikes in New York's air pollution 