Why is there an increase in faecal coliforms in wetlands?
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The increase in fecal coliforms in wetlands can be attributed to various factors such as storm events leading to sediment mobilization . Wetlands can be contaminated with fecal bacteria from sources like wastewater treatment plants and agriculture, with Escherichia coli being a major indicator of fecal contamination in surface water . Studies have shown that wetlands may contain potentially pathogenic enteric organisms from wastewater or animal fecal waste, with coliforms traditionally used as indicators of fecal and enteric pollution . Additionally, the survival and distribution of E. coli isolates in wetlands, originating mainly from human sources through wastewater treatment plant outflows and sewage sludge, contribute to the presence of fecal coliforms in these environments . These combined factors highlight the complex dynamics influencing the increase in fecal coliforms in wetlands.
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| Papers (5) | Insight |
|---|---|
| The increase in fecal coliforms in wetlands may be due to potential pathogenic organisms from wastewater or animal fecal waste, detected using PCR and qPCR methods. | |
| The attachment to the root system in wetlands plays a significant role in increasing faecal coliforms, making them appropriate for detecting and enumerating E. coli indicators. | |
| High faecal coliforms in wetlands are due to human-associated E. coli from sources like wastewater treatment plants and sewage sludge, leading to contamination and survival in these environments. | |
6 Citations | Faecal coliforms increase in wetlands during storm events due to sediment mobilization, potentially from wildlife and agricultural sources, impacting water quality and treatment efficiency. |
| Aquatic plant species like Elodea canadensis, Mentha aquatica, and Sparganium emersum can reduce fecal coliform concentrations in wetlands, potentially aiding in clearing surface freshwater from fecal bacteria. |
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