สิ่งแวดล้อม มลภาวะ ของเสีย
เอกสารมาตรฐาน
สหรัฐอเมริกา
APHA
SMWW 10300
Periphyton
2023
17
Standard methods for the examination of water and wastewater (543.3 APHA 24th ed. Ref. Treatises&monographs FL2)
Microorganisms growing on stones, sticks, aquatic macrophytes, and other submerged surfaces are useful in assessing the effects of pollutants on lakes, streams, and estuaries. Called periphyton, this group of organisms include zoogleal and filamentous bacteria, attached protozoa, rotifers, and algae, and free-living microorganisms that swim, creep, or lodge among the attached forms...