
Fecal pollution of water is the contamination of water with disease-causing organisms (pathogens) that may inhabit the gastrointestinal tract of mammals. Waters contaminated with fecal matter can pose serious health risks to humans, particularly via the fecal-oral route of transmission. Food, air, soil, and all types of surfaces can also be important in the transmission of fecal pathogens, and thereby implicated in disease outbreaks. Bacterial, viral, and protozoan pathogens can be introduced into waters in various ways, including leaking septic tanks, sewer malfunctions, contaminated storm drains, and runoff from animal feedlots. Regulatory agencies mandate the use of fecal coliforms, Escherichia coli, or Enterococcus spp. as microbial indicators of recreational water quality.
Characteristics | Values |
---|---|
Disease-causing organisms (pathogens) | May inhabit the gastrointestinal tract of mammals, but human fecal sources are the most relevant source of human illnesses globally |
Pathogens | Bacterial, viral, and protozoan |
Sources of pathogens | Leaking septic tanks, sewer malfunctions, contaminated storm drains, runoff from animal feedlots, human fecal discharge from boats, and other sources |
Animal sources | Gulls, waterfowl, and intensive livestock raising near waterways |
Zoonotic pathogens | Cryptosporidium parvum, Campylobacter spp., pathogenic Escherichia coli, such as E. coli O157:H7 |
Microbial indicators of fecal pollution | Fecal coliforms, Escherichia coli, Enterococcus spp., and human polyomaviruses (HPyVs) |
What You'll Learn
- Fecal pollution of water can cause the spread of disease-causing organisms (pathogens)
- Waters contaminated with fecal matter can pose serious health risks to shellfish consumers and swimmers
- Bacterial, viral, and protozoan pathogens can be introduced into waters through leaking septic tanks, sewer malfunctions, and contaminated storm drains
- Animal sources are generally less important to human health risk than human excreta flows
- Coliform bacteria can be used as a tool for diagnosing sewage pollution in drinking water
Fecal pollution of water can cause the spread of disease-causing organisms (pathogens)
Ingestion of water contaminated with faeces is responsible for a variety of diseases important to humans via what is known as the faecal-oral route of transmission. Food, air, soil, and all types of surfaces can also be important in the transmission of faecal pathogens, and thereby implicated in disease outbreaks.
Bacterial, viral, and protozoan pathogens can be introduced into waters in various ways, including leaking septic tanks, sewer malfunctions, contaminated storm drains, runoff from animal feedlots, human faecal discharge from boats, and other sources. Regulatory agencies mandate the use of faecal coliforms, Escherichia coli or Enterococcus spp., as microbial indicators of recreational water quality. However, these indicators of faecal pollution do not identify the specific sources of pollution and at times underestimate health risks associated with recreational water use.
Animal sources are generally less important to human health risk than human excreta flows. However, in some instances, animals (e.g. gulls, waterfowl) can have a significant impact on faecal indicator bacteria used to measure microbial water quality and could result in management actions that are unnecessary in terms of public health. Pollution of recreational waters with animal excreta can sometimes lead to human health risks, because some zoonotic pathogens (e.g. Cryptosporidium parvum; Campylobacter spp.; pathogenic Escherichia coli, such as E. coli O157:H7) can be transmitted in animal faeces, particularly from intensive livestock raising near waterways.
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Waters contaminated with fecal matter can pose serious health risks to shellfish consumers and swimmers
Waters contaminated with faecal matter can pose serious health risks to shellfish consumers and swimmers. Faecal pollution of water is the contamination of water with disease-causing organisms (pathogens) that may inhabit the gastrointestinal tract of mammals, but with particular attention to human faecal sources as the most relevant source of human illnesses globally. Ingestion of water contaminated with faeces is responsible for a variety of diseases important to humans via what is known as the faecal-oral route of transmission. Food, air, soil, and all types of surfaces can also be important in the transmission of faecal pathogens, and thereby implicated in disease outbreaks.
Bacterial, viral, and protozoan pathogens can be introduced into waters in various ways, including leaking septic tanks, sewer malfunctions, contaminated storm drains, runoff from animal feedlots, human faecal discharge from boats, and other sources. Animal sources are generally less important to human health risk than human excreta flows. However, in some instances, animals (e.g. gulls, waterfowl) can have a significant impact on faecal indicator bacteria used to measure microbial water quality. Pollution of recreational waters with animal excreta can sometimes lead to human health risks, because some zoonotic pathogens (e.g. Cryptosporidium parvum; Campylobacter spp.; pathogenic Escherichia coli, such as E. coli O157:H7) can be transmitted in animal faeces, particularly from intensive livestock raising near waterways.
Coliform bacteria, a group of typically harmless Gram-negative bacteria that constitute part of the natural gut microbiota in humans and other warm-blooded animals, provided a simple and reasonably reliable tool for diagnosing sewage pollution in drinking water samples owing to their high concentrations in sewage and ease of culture. Regulatory agencies mandate the use of faecal coliforms, Escherichia coli or Enterococcus spp., as microbial indicators of recreational water quality. These indicators of faecal pollution do not identify the specific sources of pollution and at times underestimate health risks associated with recreational water use.
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Bacterial, viral, and protozoan pathogens can be introduced into waters through leaking septic tanks, sewer malfunctions, and contaminated storm drains
Fecal pollution of water is the contamination of water with disease-causing organisms (pathogens) that may inhabit the gastrointestinal tract of mammals, with human fecal sources being the most relevant source of human illnesses globally. Food, air, soil, and all types of surfaces can also be important in the transmission of fecal pathogens, and thereby implicated in disease outbreaks. Most fecal microorganisms, however, are not pathogenic.
Regulatory agencies mandate the use of fecal coliforms, Escherichia coli, or Enterococcus spp. as microbial indicators of recreational water quality. These indicators of fecal pollution do not identify the specific sources of pollution and at times underestimate health risks associated with recreational water use. Coliform bacteria are a group of typically harmless Gram-negative bacteria that constitute part of the natural gut microbiota in humans and other warm-blooded animals.
Animal sources are generally less important to human health risk than human excreta flows. However, in some instances, animals (e.g. gulls, waterfowl) can have a significant impact on faecal indicator bacteria used to measure microbial water quality and could result in management actions that are unnecessary in terms of public health. Pollution of recreational waters with animal excreta can sometimes lead to human health risks, because some zoonotic pathogens can be transmitted in animal faeces, particularly from intensive livestock raising near waterways.
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Animal sources are generally less important to human health risk than human excreta flows
Fecal pollution of water is the contamination of water with disease-causing organisms (pathogens) that may inhabit the gastrointestinal tract of mammals, but human faecal sources are the most relevant source of human illnesses globally. Food, air, soil, and all types of surfaces can also be important in the transmission of faecal pathogens, and thereby implicated in disease outbreaks. Waters contaminated with faecal matter have the capability to pose serious health risks for shellfish consumers and swimmers and major economic losses for shellfish harvesters and businesses near beaches. Bacterial, viral, and protozoan pathogens can be introduced into waters in various ways, including leaking septic tanks, sewer malfunctions, contaminated storm drains, runoff from animal feedlots, human faecal discharge from boats, and other sources.
Coliform bacteria, a group of typically harmless Gram-negative bacteria that constitute part of the natural gut microbiota in humans and other warm-blooded animals, provided a simple and reasonably reliable tool for diagnosing sewage pollution in drinking water samples owing to their high concentrations in sewage and ease of culture. Regulatory agencies mandate the use of fecal coliforms, Escherichia coli or Enterococcus spp., as microbial indicators of recreational water quality. These indicators of faecal pollution do not identify the specific sources of pollution and at times underestimate health risks associated with recreational water use.
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Coliform bacteria can be used as a tool for diagnosing sewage pollution in drinking water
Fecal pollution of water is a serious health issue, as it can lead to the contamination of water with disease-causing organisms (pathogens) that may inhabit the gastrointestinal tract of mammals, particularly humans. Ingestion of water contaminated with feces can cause a variety of diseases in humans through the fecal-oral route of transmission. Food, air, soil, and surfaces can also play a role in transmitting fecal pathogens and triggering disease outbreaks.
Sources of fecal pollution in water include leaking septic tanks, sewer malfunctions, contaminated storm drains, runoff from animal feedlots, and human fecal discharge from boats. Animal sources, such as gulls and waterfowl, can also impact fecal indicator bacteria used to measure microbial water quality, although human excreta generally poses a greater risk to human health.
Regulatory agencies have mandated the use of fecal coliforms, Escherichia coli, or Enterococcus spp. as microbial indicators of recreational water quality. However, these indicators do not always identify the specific sources of pollution and may underestimate health risks associated with recreational water use. Therefore, alternative methods, such as the detection of human polyomaviruses (HPyVs), are being proposed to more accurately detect human fecal pollution in environmental water samples.
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Frequently asked questions
Fecal pollution of water is the contamination of water with disease-causing organisms (pathogens) that may inhabit the gastrointestinal tract of mammals. Ingestion of water contaminated with feces is responsible for a variety of diseases important to humans via the fecal-oral route of transmission.
Fecal pollution can enter water in various ways, including leaking septic tanks, sewer malfunctions, contaminated storm drains, runoff from animal feedlots, human fecal discharge from boats, and other sources.
Regulatory agencies mandate the use of fecal coliforms, Escherichia coli or Enterococcus spp., as microbial indicators of recreational water quality. However, these indicators do not identify the specific sources of pollution and can sometimes underestimate health risks.
Waters contaminated with fecal matter can pose major economic losses for shellfish harvesters and businesses near beaches.
Animal sources are generally less important to human health risk than human excreta flows. However, in some instances, animals (e.g. gulls, waterfowl) can have a significant impact on faecal indicator bacteria used to measure microbial water quality. Pollution of recreational waters with animal excreta can sometimes lead to human health risks, because some zoonotic pathogens (e.g. Cryptosporidium parvum; Campylobacter spp.; pathogenic Escherichia coli) can be transmitted in animal faeces, particularly from intensive livestock raising near waterways.