"Oxygen concentration varies drastically from one river to another, depending on their unique temperature"

Temperature is a main driving factor that changes the concentration of Dissolved Oxygen in different Rivers

The alga Melosira arctica, which grows under Arctic sea ice, contains ten times as many microplastic particles as the surrounding seawater.

According to corresponding author Li Li, Barry and Shirley Isett Professor of Civil and Environmental Engineering at Penn State, the common perception is that all three factors matter: how fast a stream flows influen…