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A view toward the Chrysler Building from the Empire State Building amid the six-day smog of November 1953, estimated to have caused at least 200 deaths. [14]Even before the 1966 smog episode, scientists, city officials, and the general public recognized that New York City—and most other major American cities—had serious air-pollution problems. [15]
Air pollution in Los Angeles has caused widespread concerns. In 2012, the Public Policy Institute of California (PPIC) Survey on Californians and the Environment showed that 45% of citizens in Los Angeles consider air pollution to be a "big problem", and 47% believe that the air quality of Los Angeles is worse than it was 10 years ago. [96]
Hydrogen fluoride and sulfur dioxide emissions from U.S. Steel's Donora Zinc Works and its American Steel & Wire plant were frequent occurrences in Donora. What made the 1948 event more severe was a temperature inversion, a situation in which warmer air aloft traps pollution in a layer of colder air near the surface.
The air quality spiked to very unhealthy levels across the Northeast on Wednesday morning as wildfire smoke from Canada poured into the region. On Wednesday morning, the famous New York City ...
Air pollution has been a consistent and ongoing nuisance in Phoenix — along with five other cities in Arizona, it’s tied for the worst air quality in the nation. According to research group ...
Fresno has some of the worst air quality in the United States, according to the American Lung Association. The Central Valley is one of the top 10 most polluted cities in the United States ...
The January 2024 version of the WHO database contains results of ambient (outdoor) air pollution monitoring from almost 5,390 towns and cities in 63 countries. Air quality in the database is represented by the annual mean concentration of particulate matter (PM10 and PM2.5, i.e. particles smaller than 10 or 2.5 micrometers, respectively). [1 ...
Cities that have experienced massive droughts and wildfires in recent years have among the worst air quality. So far this year, there have been more than 20,000 wildfires, spanning 2.3 million ...