Search results
Results from the WOW.Com Content Network
US counties that are designated "nonattainment" for National Ambient Air Quality Standards, as of September 30, 2017.. In the 1950s, 1970s, and 1990s, the United States Congress enacted a series of Clean Air Acts that significantly strengthened regulation of air pollution. [7]
Air quality has a direct impact on health, and the biggest culprit is fine particulate matter (PM 2.5). We looked at the annual concentration of PM 2.5 in each city to gauge general air quality ...
In this article we take a look at the 30 cities with the best air quality in the U.S. Click to skip ahead and jump to the 10 Cities With Best Air Quality in the U.S. Great quality of life depends ...
U.S. Air Quality Map St. Augustine among country's best beaches and beach towns With white, powdery sand, St. Augustine Beach has landed on TripAdvisor's 2023 list of the country's top 25 beaches .
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 ...
US counties that are designated "nonattainment" for the Clean Air Act's NAAQS, as of September 30, 2017. The U.S. National Ambient Air Quality Standards (NAAQS, pronounced / ˈ n æ k s / naks) are limits on atmospheric concentration of six pollutants that cause smog, acid rain, and other health hazards. [1]
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 ...
The EPA and state agencies, like California's, collect air quality data on the main pollutants regulated by the Clean Air Act, called "criteria" pollutants. These monitors help ensure air quality standards are met and also provide important data for studying pollution trends.