Pollutants hang in the air at a coke plant in Pennsylvania. This plant was photographed in 1973, but humans have been polluting their air for many years before that. National Archives/US EPA When ...

In 2017, biogeochemist Janice Brahney was collecting dust deposited in remote wilderness areas in the western US. She wanted to study how phosphorus that was transported through the air to these wild ...

Pollution is a public health concern, and is considered to be any harmful material introduced to the environment. Many materials can cause such harm and are referred to as pollutants. Pollutants are ...

Air pollution is expensive. It causes disease, which results in health care costs. It causes people to miss work because they are sick, disabled, or need to care for an afflicted family member. And it ...

Soil pollution refers to the dangerously high concentrations of contaminants in soil. While contaminants such as metals, inorganic ions, salts, and organic compounds naturally occur in soils, these ...

IN the last decade many technical and popular articles have been published describing the effects of prolonged fogs and the dangerous pollution they can foster. The classic examples were in the Meuse ...

State regulators rejected one of three mines that a company planning a northern Wisconsin zinc and copper mine submitted as examples of similar mines that have operated pollution free, authorities ...

Indicator species are living organisms that tell us that something has changed or is going to change in their environment. They can be easily observed, and studying them is considered a cost-effective ...