Over the past 10 years, the U.S. has made great strides to improve its air quality. Rice University recently studied different regions of the country to determine which areas had been successful, and the results showed that most regions that had been mandated by the Environmental Protection Agency to reduce pollution achieved their goals.
According to the study, which was published in the Journal of the Air and Waste Management Association, noted that 22 of the 23 designated regions cut back on particulate matter in the air. Many of the improvements came across entire states, including those with major metropolitan areas such as New York.
"It was encouraging to find that across the country, we have seen overall particulate-matter levels come down," said Daniel Cohan, a professor at Rice. "We found very slight extra improvement at monitors that were targeted the most, but regions that had to develop plans achieved pretty solid controls that didn't just pinpoint the worst monitors. And the large populations of these regions benefited."
While the overall air quality of the U.S. has improved, individuals can still do their part to enhance their own indoor spaces. Many choose to invest in home air purifiers such as the IQAir GC MultiGas. This professional-grade device is capable of clearing the air of a wide variety of chemicals and pollutants.