a value that indicated the acidity or alkalinity of a solution on a scale of 0-14, based on the proportion of H+ ions.
dissolved oxygen (DO)
The amount of oxygen dissolved in the water. Measured in milligrams per liter.
biological oxygen demand (BOD)
the amount of oxygen needed by microorganisms to decompose biological wastes into carbon dioxide, water, and minerals.
nitrogen compounds used for growth by plants and algae
a nutrient added to laundry detergent, soaps, and fertilizer that can cause eutrophication
a heavy odorless colorless gas formed during respiration and by the decomposition of organic substances
a measure of the buffering capacity of water