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Soil Pollution Types

Soil pollution includes any chemicals or contaminants that harm plant or animal species. These pollutants decrease soil quality, d...

Definition of Soil Pollution

Pollution comes in many forms, and one form of pollution can often increase other forms, such as when rain washes solid waste off ...

Is Your Home in an Air Pollution Danger Zone?

Most of us could survive for weeks without food and a few days without water, yet we spend hours debating over organic or conventi...

The Effects of Fertilizers & Pesticides

Fertilizers and pesticides both have definite pros and cons associated with their use. Both types of chemical tend to increase yie...

How Does Land Pollution Effect Your Health?

While air and water pollution may receive the bulk of the headlines, pollution of the land or soil is as serious a threat to the w...

Environmental Problems & Solutions

The planet faces a variety of troubling issues that stem from man-made contamination. Many of these lead to environmental problems...

The Effects of Soil Pollution on Humans

Soil pollution occurs when soil contains chemicals that are toxic or otherwise dangerous for humans and other living things. The c...

Future Effects of Pollution

Pollution occurs when chemicals and other foreign substances leech into the ground, air and water. These pollutants contain toxins...

The 50 U.S. Cities With the Best Air Quality

Air quality might not be top of mind when you head out for a hike or open the windows to catch a summer breeze, but it can have a major impact on your life. Poor air quality can lead to increased rates of asthma, sinusitis and hay fever, which means sneezing, itchy eyes and an itchy nose, says San Francisco allergy specialist Denise Wood. “You can even get allergy-type symptoms from pollen, pollution, car exhaust and dust from buildings,” she says. For the second year, the environmental consulting company Environmental Health & Engineering (EHE) compiled data for the AirGenius Awards, sponsored by the makers of the Honeywell AirGenius Air Cleaner, to identify the American cities with the best air quality. They looked at a range of factors, including pollen counts, ozone concentrations, particulate-matter concentrations, public smoking laws, access to parks and “green” and “clean” city rankings. “The results are exciting,” says Ted Myatt, Sc.D., a senior scientist at EHE who worked on the study, “not only because they consolidate several air-pollutant measures into a single metric, but also because the rankings are an indicator that air quality will remain good in the future for the citizens of the high-ranking cities.” Here are the top 50 cities named in the second annual AirGenius Awards, as well as our tips for how to enjoy the clean air of each location.

The 50 U.S. Cities With the Worst Air Quality

More than half of all Americans -- 166 million people -- live in places where they are exposed to unhealthy levels of year-round particle and ozone pollution, according to the American Lung Association. Every year the association produces the State of the Air report, which details pollution levels at official monitoring sites. The best and worst cities in the United States are ranked under three categories: short-term particle pollution, year-round particle pollution and ozone pollution. Acute effects caused by high ozone levels are generally reversible, whereas “long-term exposure to air polluted by particulate matter” can exacerbate chronic disorders like heart disease and diabetes. If you’re curious about the air you’re breathing, here’s the ALA’s list of the 50 U.S. cities with the worst year-round pollution.
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