Officials said the AQI in New York City hit a high of 484, on a scale from 0-500, on Wednesday, recording the worst air quality of any major city in the world.
— CBS Mornings (@CBSMornings) June 8, 2023
New York is just one of more than a dozen states facing air quality alerts, as more than 400 fires burn across Canada. pic.twitter.com/OBsE7be66E
The 1966 New York City smog was a major air-pollution episode and environmental disaster, coinciding with that year's Thanksgiving holiday weekend. Smog covered the city and its surrounding area from November 23 to 26, filling the city's air with damaging levels of several toxic pollutants. It was the third major smog in New York City, following events of similar scale in 1953 and 1963.
On November 23, a large mass of stagnant air over the East Coast trapped pollutants in the city's air. For three days, New York City was engulfed in dangerously high levels of carbon monoxide, sulfur dioxide, smoke, and haze. Pockets of air pollution pervaded the greater New York metropolitan area, including parts of New Jersey and Connecticut. By November 25, the smog became severe enough that regional leaders announced a "first-stage alert". During the alert, leaders of local and state governments asked residents and industry to take voluntary steps to minimize emissions. Health officials advised people with respiratory or heart conditions to remain indoors. The city shut off garbage incinerators, requiring massive hauling of garbage to landfills. A cold front dispersed the smog on November 26, and the alert ended.
Smoke from hundreds of Canadian wildfires is stretching across the U.S., from the Plains to the East Coast.@WeatherChannel’s @StephanieAbrams breaks down the potentially record-setting wildfire season Canada is experiencing. pic.twitter.com/9CsqI783OJ
— CBS Mornings (@CBSMornings) June 8, 2023