Most polluted cities in America with the worst air quality right now

Cities with heavy industrial presences, such as those with large manufacturing plants, refineries, or power plants, often have higher levels of air pollution. These industries can release significant amounts of pollutants into the atmosphere, including particulate matter, sulfur dioxide, and nitrogen oxides.

Cities with high levels of vehicle traffic, especially those with older vehicles or congested roadways, can experience significant air pollution from vehicle emissions. These emissions include pollutants such as nitrogen oxides, carbon monoxide, and particulate matter.
Source: US EPA

Some cities are more susceptible to air pollution due to their geographic location and climate. Cities located in valleys or surrounded by mountains can experience air stagnation, trapping pollutants and preventing them from dispersing. Additionally, cities with hot, sunny climates can experience higher levels of ozone pollution, a harmful component of smog.

In some cases, weak environmental regulations or inadequate enforcement of existing regulations can contribute to higher levels of air pollution in certain cities.

Cities with high population densities often have higher levels of air pollution due to the increased number of vehicles, industries, and other pollution sources.

Cities that rely heavily on fossil fuels for energy production, such as coal-fired power plants, can contribute significantly to air pollution.