As per the latest American Lung Association report, nearly half of Americans, around 156 million people live in areas that received a failing grade in air quality. The East Coast has seen a rise in air pollution that came after wildfires and heatwaves, breaking through West Coast city domination of the most annual exposure to fine particulate matter. These were based on the association's "State of the State" report based on 2021 to 2023 data. Most of this is to be attributed to the 2023 Canadian wildfires and the extreme heatwaves. How Was Air Quality Measured?Three indicators were used to measure air quality, namely: ozone air pollution, short-term particle pollution and long-term particle pollution. Exposure to unhealthy air can cause many health risks to a person and could increase the chance of stroke, ischemic heart disease, severity in asthma attacks, chronic obstructive pulmonary disease, lung cancer, and pneumonia. Air pollution is also linked with increased fetal and infant mortality and pregnancy complication, along with cognitive decline. Here Are The Top 10 US Cities With Worst Air Pollution:10. Fairbanks-College, AlaskaThis region continues to perform poorly on particulate matter pollution. The area has also been prone to wildfire smoke, use of wood-burning stoves, aggressive heating methods, and large vehicles.9. Cleveland-Akon-Canton, OhioThis region experienced a dramatic fall that placed it from 54th to ninth rank in highest exposure of annual particulate matter. 8. Houston-Pasadena, TexasIt is on the list due to the ozone pollution. 7. San Jose-San Francisco-Oakland, CaliforniaThe Bay Area is one of six regions in California that rank among the top 10 in the country for annual particle pollution exposure. Frequent wildfires driven by dry conditions contribute to poor air quality across all three pollution measures in the report. The region also ranks 11th for short-term particle pollution and 14th for ozone pollution. These environmental hazards impact a population of 9 million people, nearly 6 million of whom are people of color.6. Detroit-Warren-Ann Arbor, MichiganThe Detroit metro area is a latest addition in the long-term air pollution list, the region was impacted by the Canadian wildfires. 5. Lod Angeles-Long Beach, CaliforniaThis is the worst rank for ozone pollution in the 25th time in the 26-year history of the 'State of the Air' report. 4. Eugene-Springfield, OregonThis has ranked third for short-term air quality. The pollution has affected 381,000 people. 3. Fresno-Hanford-Corcoran, CaliforniaThis region scored firth for both short-term and long-term air pollution and ozone pollution, and has slightly improved from precious years. 2. Visalia, CaliforniaThis city experienced the highest-ever spike in particulate pollution since the start of the report. 1. Bakersfield-Delano, CaliforniaThis region top the worst air pollution list for the sixth consecutive year, affection a population of 914,000 people.Air Pollution And Its ImpactPreviously, residents of the US, Canada, and UK also reported mysterious, dense fog. Many residents posted videos that claimed the fog smelled like "burning chemical". Many on TikTok shared the video of the dense fog, calling it "toxic". The people also shared: "The weirdest part is the taste and smell. It smells like after you set off a bunch of fireworks, and the air tastes toxic. It is super weird". Someone else on X, previously Twitter claimed that the air smells like burning plastic.Pollution is related with many health risks, a thick fog during winter may not be a reason for concern. However, the residents claiming it to be toxic due to the smell or the adverse affects on their health may lead to it being a cause of concerns. Also, new research highlights a disturbing connection between long-term exposure to air pollution and a heightened danger of deadly blood clots, a condition which is underappreciated but also poses significant health risks. A study, published in Blood, examined how long-term exposure to some pollutants, including fine particulate matter, nitrogen dioxide, and nitric oxide, may heighten the chances of VTE hospitalizations.The outcomes showed that the individuals who had exposure to pollutants in the higher quartile had:43% increased risk of hospitalization for VTE associated with fine particulate matter.2.8 times increased risk from nitrogen dioxide exposure.2.3 times increased risk due to nitric oxide.Another 2021 study titled Effect of Air Pollution on Obesity in Children: A systematic Review and Meta-Analysis, there is a connection between air pollution and weight gain through biological behavioral mechanism. The major pollutants causing obesity are nitrous oxides, nitrogen dioxide, ozone, and particulate matter. These could lead to systematic inflammation and metabolic disturbances, which can lead to weight gain and obesity. The study mentions that fine particulate matter [PM2.5], when it enters our body, it influences the metabolism rates.A different study published in the JAMA Network Open, stated that higher levels of particulate matter (PM2.5) and nitrogen dioxide (NO2) exposure can increase the risk of Parkinson's and Alzheimer's.