The 25 most dangerously polluted cities in the US

Flickr / Nicholas Raymond According to the American Airlines Association's 2018 "Air Conditioner" report, more than 133.9 million Americans live in counties with less air pollution. This figure is 9 million more than last year's report.

Contamination brings various annoying health results such as asthma, lung cancer, and shortened lifespan

The new report summarizes the air quality data of the United States from 2014 to 2016. (Because the air quality data is rich and complex, the annual ALA report seems to have been two years.)

Particles include everything from dust generated during droughts to small particles that float on forest fires and fossil fuels. When the exhaust pipe and the chimney discharge are cooked under the sun's heat, ozone and smoke are generated in the upper atmosphere.

Local pollution levels can be measured based on atmospheric ozone, days with very high levels of particulate contaminants, or annual particulate contamination levels. Each indicator has different results. For example, Los Angeles is the most ozone-prone city in the United States, but it is not particulate contamination occurring throughout the year. It is the ranking used in this article.

Janice Nolen, the first author of the ALA report, told the Business Insider last year that regional problems such as car traffic could exacerbate city ozone and particulate matter problems. Even if the environmental regulation is severe, it is vulnerable to the harsh air from other regions in the country.

Below is the worst US subway for particle contamination throughout the year. (The report points out that data is lacking in both the Illinois and Mississippi states and two major counties in California.)

According to the American Lung Association's 2016 Air Condition report, more than half of Americans (166 million people) are threatened by dangerously polluted air. Particle contamination and ozone continue to plague our city. Carbon monoxide, lead, nitrogen dioxide, volatile organic compounds, sulfur dioxide, mercury, arsenic, benzene, formaldehyde, and passive smoking are still fatal contaminants. In recent years, we have made progress in reducing air pollution, but this work has not yet been completed. We remain strong and need to resist various industry attempts to destroy Clean Air law. The United States must continue to reduce industrial pollution and regulations on automobile emissions and strive to eliminate the damage caused

Air pollution is one of the major environmental problems of today. There are many reasons to regularly increase air pollution. Most air pollution is caused by automobiles, transportation, industrialization, developing cities, etc. Several harmful gases or dangerous elements released from these sources are causing the entire atmosphere. Air pollution also has a serious effect on the ozone layer and can cause serious environmental problems. Increasing demand for population growth is the main cause of pollution. Everyday human activities lead to the emission of hazardous chemicals, which makes the atmosphere more dirty and adversely affects climate change