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  2. Bioindicator - Wikipedia

    en.wikipedia.org/wiki/Bioindicator

    Caddisfly (order Trichoptera), a macroinvertebrate used as an indicator of water quality. [1] A bioindicator is any species (an indicator species) or group of species whose function, population, or status can reveal the qualitative status of the environment. The most common indicator species are animals. [2]

  3. Indicator organism - Wikipedia

    en.wikipedia.org/wiki/Indicator_organism

    The most common indicators are total coliforms, fecal coliforms, E. coli, and enterococci. [2] The presence of bacteria commonly found in human feces, termed coliform bacteria (e.g. E. coli), in surface water is a common indicator of faecal contamination.

  4. Wastewater quality indicators - Wikipedia

    en.wikipedia.org/wiki/Wastewater_quality_indicators

    Nonpoint source pollution can be contrasted with point source pollution, where discharges occur to a body of water at a single location. The nonpoint sources of phosphates include natural decomposition of rocks and minerals, stormwater runoff , agricultural pollution , erosion and sedimentation , atmospheric deposition , and direct input by ...

  5. Biotic index - Wikipedia

    en.wikipedia.org/wiki/Biotic_index

    Pollution tolerant: These organisms will be found in polluted, as well as clean aquatic ecosystems (Leeches, Blood worms) Some index worksheets combine groups 2 and 3 together, giving only 3 groups. Each group has a number assigned to it and is multiplied by the number of organisms found in that group.

  6. Indicator bacteria - Wikipedia

    en.wikipedia.org/wiki/Indicator_bacteria

    Indicator bacteria can be cultured on media which are specifically formulated to allow the growth of the species of interest and inhibit growth of other organisms. Typically, environmental water samples are filtered through membranes with small pore sizes and then the membrane is placed onto a selective agar.

  7. Industries polluted Columbia’s water with dangerous ‘forever ...

    www.aol.com/industries-polluted-columbia-water...

    The canal and lake water plants serve more than 370,000 customers, making Columbia one of South Carolina’s largest drinking water suppliers. Textile plants are a major source of hazardous ...

  8. Aquatic biomonitoring - Wikipedia

    en.wikipedia.org/wiki/Aquatic_biomonitoring

    Species specific - It can be difficult to draw comparisons between results unless the same indicator organism has been used in each study, as every species has an individual niche and associated ideal conditions. Even similar species (as defined by either taxonomy or niche) may have different reactions and different thresholds for change.

  9. Category:Water quality indicators - Wikipedia

    en.wikipedia.org/wiki/Category:Water_quality...

    Wastewater quality indicators; Water clarity; Winkler titration This page was last edited on 1 May 2023, at 14:26 (UTC). Text is ...