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Antibiotic resistance genes in municipal wastewater treatment systems and receiving waters in Arctic Canada.

https://arctichealth.org/en/permalink/ahliterature294222
Source
Sci Total Environ. 2017 Nov 15; 598:1085-1094
Publication Type
Journal Article
Date
Nov-15-2017
Author
Kara D Neudorf
Yan Nan Huang
Colin M Ragush
Christopher K Yost
Rob C Jamieson
Lisbeth Truelstrup Hansen
Author Affiliation
Department of Process Engineering and Applied Science, Dalhousie University, 1360 Barrington Street, Halifax B3H 4R2, Canada.
Source
Sci Total Environ. 2017 Nov 15; 598:1085-1094
Date
Nov-15-2017
Language
English
Publication Type
Journal Article
Keywords
Anti-Bacterial Agents
Drug Resistance, Bacterial - genetics
Environmental monitoring
Genes, Bacterial
Nunavut
Waste Water - microbiology
Abstract
Domestic wastewater discharges may adversely impact arctic ecosystems and local indigenous people, who rely on being able to hunt and harvest food from their local environment. Therefore, there is a need to develop efficient wastewater treatment plants (WWTPs), which can be operated in remote communities under extreme climatic conditions. WWTPs have been identified as reservoirs of antibiotic resistance genes (ARGs). The objective of this work was to quantify the presence of nine different ARG markers (int1, sul1, sul2, tet(O), erm(B), mecA, blaCTX-M, blaTEM, and qnr(S)) in two passive systems (waste stabilization ponds [WSPs]) and one mechanical filtration plant operating in two smaller and one large community, respectively, in Nunavut, Canada. Measurement of water quality parameters (carbonaceous oxygen demand, ammonia, total suspended solids, Escherichia coli and total coliforms) showed that the WWTPs provided only primary treatment. Low levels of the ARGs (2logcopies/mL) were observed in the effluent, demonstrating that bacteria residing in three northern WWTPs harbour ARGs conferring resistance to multiple clinically-relevant classes of antibiotics. Our results indicate that long-term storage in WSPs benefitted removal of organic material and some ARGs. However, one WSP system showed evidence of the enrichment of sul1, sul2, mecA, tet(O) and qnr(S). Further research is needed to fully understand if these ARG releases pose a risk to human health, especially in the context of traditional hunting and fishing activities.
PubMed ID
28482456 View in PubMed
Less detail

Antibiotic resistance genes in municipal wastewater treatment systems and receiving waters in Arctic Canada.

https://arctichealth.org/en/permalink/ahliterature282398
Source
Sci Total Environ. 2017 May 02;598:1085-1094
Publication Type
Article
Date
May-02-2017
Author
Kara D Neudorf
Yan Nan Huang
Colin M Ragush
Christopher K Yost
Rob C Jamieson
Lisbeth Truelstrup Hansen
Source
Sci Total Environ. 2017 May 02;598:1085-1094
Date
May-02-2017
Language
English
Publication Type
Article
Abstract
Domestic wastewater discharges may adversely impact arctic ecosystems and local indigenous people, who rely on being able to hunt and harvest food from their local environment. Therefore, there is a need to develop efficient wastewater treatment plants (WWTPs), which can be operated in remote communities under extreme climatic conditions. WWTPs have been identified as reservoirs of antibiotic resistance genes (ARGs). The objective of this work was to quantify the presence of nine different ARG markers (int1, sul1, sul2, tet(O), erm(B), mecA, blaCTX-M, blaTEM, and qnr(S)) in two passive systems (waste stabilization ponds [WSPs]) and one mechanical filtration plant operating in two smaller and one large community, respectively, in Nunavut, Canada. Measurement of water quality parameters (carbonaceous oxygen demand, ammonia, total suspended solids, Escherichia coli and total coliforms) showed that the WWTPs provided only primary treatment. Low levels of the ARGs (2logcopies/mL) were observed in the effluent, demonstrating that bacteria residing in three northern WWTPs harbour ARGs conferring resistance to multiple clinically-relevant classes of antibiotics. Our results indicate that long-term storage in WSPs benefitted removal of organic material and some ARGs. However, one WSP system showed evidence of the enrichment of sul1, sul2, mecA, tet(O) and qnr(S). Further research is needed to fully understand if these ARG releases pose a risk to human health, especially in the context of traditional hunting and fishing activities.
PubMed ID
28482456 View in PubMed
Less detail

Chemical and microbial characteristics of municipal drinking water supply systems in the Canadian Arctic.

https://arctichealth.org/en/permalink/ahliterature297661
Source
Environ Sci Pollut Res Int. 2018 Nov; 25(33):32926-32937
Publication Type
Journal Article
Date
Nov-2018
Author
Kiley Daley
Lisbeth Truelstrup Hansen
Rob C Jamieson
Jenny L Hayward
Greg S Piorkowski
Wendy Krkosek
Graham A Gagnon
Heather Castleden
Kristen MacNeil
Joanna Poltarowicz
Emmalina Corriveau
Amy Jackson
Justine Lywood
Yannan Huang
Author Affiliation
Centre for Water Resources Studies, Dalhousie University, Halifax, NS, B3H 4R2, Canada.
Source
Environ Sci Pollut Res Int. 2018 Nov; 25(33):32926-32937
Date
Nov-2018
Language
English
Publication Type
Journal Article
Keywords
Chlorine - analysis
Disinfection - methods
Drinking Water - analysis - chemistry - microbiology
Escherichia coli - isolation & purification
Family Characteristics
Fresh Water - analysis - chemistry - microbiology
Halogenation
Humans
Nunavut
Polymerase Chain Reaction - methods
Water Microbiology
Water Purification - methods
Water Quality
Water Supply - standards
Abstract
Drinking water in the vast Arctic Canadian territory of Nunavut is sourced from surface water lakes or rivers and transferred to man-made or natural reservoirs. The raw water is at a minimum treated by chlorination and distributed to customers either by trucks delivering to a water storage tank inside buildings or through a piped distribution system. The objective of this study was to characterize the chemical and microbial drinking water quality from source to tap in three hamlets (Coral Harbour, Pond Inlet and Pangnirtung-each has a population of 0.2 mg/L free chlorine). Some buildings in the four communities contained manganese (Mn), copper (Cu), iron (Fe) and/or lead (Pb) concentrations above Health Canada guideline values for the aesthetic (Mn, Cu and Fe) and health (Pb) objectives. Corrosion of components of the drinking water distribution system (household storage tanks, premise plumbing) could be contributing to Pb, Cu and Fe levels, as the source water in three of the four communities had low alkalinity. The results point to the need for robust disinfection, which may include secondary disinfection or point-of-use disinfection, to prevent microbial risks in drinking water tanks in buildings and ultimately at the tap.
PubMed ID
28612312 View in PubMed
Less detail

Chemical and microbial characteristics of municipal drinking water supply systems in the Canadian Arctic.

https://arctichealth.org/en/permalink/ahliterature283404
Source
Environ Sci Pollut Res Int. 2017 Jun 13;
Publication Type
Article
Date
Jun-13-2017
Author
Kiley Daley
Lisbeth Truelstrup Hansen
Rob C Jamieson
Jenny L Hayward
Greg S Piorkowski
Wendy Krkosek
Graham A Gagnon
Heather Castleden
Kristen MacNeil
Joanna Poltarowicz
Emmalina Corriveau
Amy Jackson
Justine Lywood
Yannan Huang
Source
Environ Sci Pollut Res Int. 2017 Jun 13;
Date
Jun-13-2017
Language
English
Publication Type
Article
Abstract
Drinking water in the vast Arctic Canadian territory of Nunavut is sourced from surface water lakes or rivers and transferred to man-made or natural reservoirs. The raw water is at a minimum treated by chlorination and distributed to customers either by trucks delivering to a water storage tank inside buildings or through a piped distribution system. The objective of this study was to characterize the chemical and microbial drinking water quality from source to tap in three hamlets (Coral Harbour, Pond Inlet and Pangnirtung-each has a population of 0.2 mg/L free chlorine). Some buildings in the four communities contained manganese (Mn), copper (Cu), iron (Fe) and/or lead (Pb) concentrations above Health Canada guideline values for the aesthetic (Mn, Cu and Fe) and health (Pb) objectives. Corrosion of components of the drinking water distribution system (household storage tanks, premise plumbing) could be contributing to Pb, Cu and Fe levels, as the source water in three of the four communities had low alkalinity. The results point to the need for robust disinfection, which may include secondary disinfection or point-of-use disinfection, to prevent microbial risks in drinking water tanks in buildings and ultimately at the tap.
PubMed ID
28612312 View in PubMed
Less detail

Disinfection and removal of human pathogenic bacteria in arctic waste stabilization ponds.

https://arctichealth.org/en/permalink/ahliterature297766
Source
Environ Sci Pollut Res Int. 2018 Nov; 25(33):32881-32893
Publication Type
Journal Article
Date
Nov-2018
Author
Yannan Huang
Lisbeth Truelstrup Hansen
Colin M Ragush
Rob C Jamieson
Author Affiliation
Centre for Water Resources Studies, Dalhousie University, Halifax, NS, B3H 4R2, Canada.
Source
Environ Sci Pollut Res Int. 2018 Nov; 25(33):32881-32893
Date
Nov-2018
Language
English
Publication Type
Journal Article
Keywords
Bacteria
Disinfection - methods
Environmental Biomarkers
Escherichia coli
Feces - microbiology
Humans
Listeria monocytogenes
Nunavut
Ponds - microbiology
Salmonella
Seasons
Waste Disposal, Fluid - methods
Waste Water - microbiology
Water Microbiology
Abstract
Wastewater stabilization ponds (WSPs) are commonly used to treat municipal wastewater in Arctic Canada. The biological treatment in the WSPs is strongly influenced by climatic conditions. Currently, there is limited information about the removal of fecal and pathogenic bacteria during the short cool summer treatment season. With relevance to public health, the objectives of this paper were to determine if treatment in arctic WSPs resulted in the disinfection (i.e., removal of fecal indicator bacteria, Escherichia coli) and removal of selected human bacterial pathogens from the treated effluent. The treatment performance, with focus on microbial removal, was assessed for the one-cell WSP in Pond Inlet (Nunavut [NU]) and two-cell WSP in Clyde River (NU) over three consecutive (2012-2014) summer treatment seasons (late June-early September). The WSPs provided a primary disinfection treatment of the wastewater with a 2-3 Log removal of generic indicator E. coli. The bacterial pathogens Salmonella spp., pathogenic E. coli, and Listeria monocytogenes, but not Campylobacter spp. and Helicobacter pylori, were detected in the untreated and treated wastewater, indicating that human pathogens were not reliably removed. Seasonal and annual variations in temperature significantly (p 
PubMed ID
28353112 View in PubMed
Less detail

Disinfection and removal of human pathogenic bacteria in arctic waste stabilization ponds.

https://arctichealth.org/en/permalink/ahliterature281067
Source
Environ Sci Pollut Res Int. 2017 Mar 29;
Publication Type
Article
Date
Mar-29-2017
Author
Yannan Huang
Lisbeth Truelstrup Hansen
Colin M Ragush
Rob C Jamieson
Source
Environ Sci Pollut Res Int. 2017 Mar 29;
Date
Mar-29-2017
Language
English
Publication Type
Article
Abstract
Wastewater stabilization ponds (WSPs) are commonly used to treat municipal wastewater in Arctic Canada. The biological treatment in the WSPs is strongly influenced by climatic conditions. Currently, there is limited information about the removal of fecal and pathogenic bacteria during the short cool summer treatment season. With relevance to public health, the objectives of this paper were to determine if treatment in arctic WSPs resulted in the disinfection (i.e., removal of fecal indicator bacteria, Escherichia coli) and removal of selected human bacterial pathogens from the treated effluent. The treatment performance, with focus on microbial removal, was assessed for the one-cell WSP in Pond Inlet (Nunavut [NU]) and two-cell WSP in Clyde River (NU) over three consecutive (2012-2014) summer treatment seasons (late June-early September). The WSPs provided a primary disinfection treatment of the wastewater with a 2-3 Log removal of generic indicator E. coli. The bacterial pathogens Salmonella spp., pathogenic E. coli, and Listeria monocytogenes, but not Campylobacter spp. and Helicobacter pylori, were detected in the untreated and treated wastewater, indicating that human pathogens were not reliably removed. Seasonal and annual variations in temperature significantly (p 
PubMed ID
28353112 View in PubMed
Less detail

Fate of antibiotic resistance genes in two Arctic tundra wetlands impacted by municipal wastewater.

https://arctichealth.org/en/permalink/ahliterature293400
Source
Sci Total Environ. 2018 Nov 15; 642:1415-1428
Publication Type
Journal Article
Date
Nov-15-2018
Author
Jennifer L Hayward
Amy J Jackson
Christopher K Yost
Lisbeth Truelstrup Hansen
Rob C Jamieson
Author Affiliation
Centre for Water Resources Studies, Department of Civil & Resource Engineering, Dalhousie University, 1360 Barrington St., Halifax, Nova Scotia B3H 4R2, Canada. Electronic address: jenny.hayward@dal.ca.
Source
Sci Total Environ. 2018 Nov 15; 642:1415-1428
Date
Nov-15-2018
Language
English
Publication Type
Journal Article
Abstract
In the Canadian Arctic, it is common practice to discharge municipal wastewater into tundra wetlands. Antibiotic resistant bacteria and the antibiotic resistance genes (ARGs) they contain can be present in municipal wastewater and there is a scarcity of knowledge on ARGs in wastewater in Arctic environments. This study was initiated on the fate of ARGs in tundra wetland ecosystems impacted by anthropogenic wastewater sources in Arctic communities. In the summer season of 2016, two wetlands were studied in the Inuit communities of Sanikiluaq and Naujaat in Nunavut, Canada. Genomic DNA was extracted from both soil and water during the spring freshet and late summer in the wetlands, and a suite of nine clinically relevant ARGs (sul1, sul2, mecA, vanA, qnrS, ermB, tetO, blaTEM, blaCTX-M), and an integron gene (int1) were analyzed using quantitative polymerase chain reaction (qPCR). Hydrological and water quality measurements were conducted in conjunction with the microbiological sampling. Gene targets were consistently present in the wastewater, and throughout both wetlands, except for vanA and mecA. Concentrations of ARGs were greater during the spring freshet, due to short hydraulic retention times (
PubMed ID
30045522 View in PubMed
Less detail

Screening-level microbial risk assessment of acute gastrointestinal illness attributable to wastewater treatment systems in Nunavut, Canada.

https://arctichealth.org/en/permalink/ahliterature298340
Source
Sci Total Environ. 2019 Mar 20; 657:1253-1264
Publication Type
Journal Article
Date
Mar-20-2019
Author
Kiley Daley
Rob Jamieson
Daniel Rainham
Lisbeth Truelstrup Hansen
Sherilee L Harper
Author Affiliation
Centre for Water Resources Studies, Dalhousie University, 1360 Barrington Street, Halifax, Nova Scotia B3H 4R2, Canada. Electronic address: kiley.daley@dal.ca.
Source
Sci Total Environ. 2019 Mar 20; 657:1253-1264
Date
Mar-20-2019
Language
English
Publication Type
Journal Article
Keywords
Environmental Exposure - analysis
Gastrointestinal Diseases - epidemiology - microbiology
Humans
Incidence
Nunavut
Recreation
Risk assessment
Waste Management - methods
Waste Water - microbiology
Water Purification
Wetlands
Abstract
Most arctic communities use primary wastewater treatment systems that are capable of only low levels of pathogen removal. Effluent potentially containing fecally derived microorganisms is released into wetlands and marine waters that may simultaneously serve as recreation or food harvesting locations for local populations. The purpose of this study is to provide the first estimates of acute gastrointestinal illness (AGI) attributable to wastewater treatment systems in Arctic Canada. A screening-level, point estimate quantitative microbial risk assessment model was developed to evaluate worst-case scenarios across an array of exposure pathways in five case study locations. A high annual AGI incidence rate of 5.0 cases per person is estimated in Pangnirtung, where a mechanical treatment plant discharges directly to marine waters, with all cases occurring during low tide conditions. The probability of AGI per person per single exposure during this period ranges between 1.0?×?10-1 (shore recreation) and 6.0?×?10-1 (shellfish consumption). A moderate incidence rate of 1.2 episodes of AGI per person is estimated in Naujaat, where a treatment system consisting of a pond and tundra wetland is used, with the majority of cases occurring during spring. The pathway with the highest individual probability of AGI per single exposure event is wetland travel at 6.0?×?10-1. All other risk probabilities per single exposure are
PubMed ID
30677892 View in PubMed
Less detail

Wastewater treatment and public health in Nunavut: a microbial risk assessment framework for the Canadian Arctic.

https://arctichealth.org/en/permalink/ahliterature280323
Source
Environ Sci Pollut Res Int. 2017 Feb 21;
Publication Type
Article
Date
Feb-21-2017
Author
Kiley Daley
Rob Jamieson
Daniel Rainham
Lisbeth Truelstrup Hansen
Source
Environ Sci Pollut Res Int. 2017 Feb 21;
Date
Feb-21-2017
Language
English
Publication Type
Article
Abstract
Wastewater management in Canadian Arctic communities is influenced by several geographical factors including climate, remoteness, population size, and local food-harvesting practices. Most communities use trucked collection services and basic treatment systems, which are capable of only low-level pathogen removal. These systems are typically reliant solely on natural environmental processes for treatment and make use of existing lagoons, wetlands, and bays. They are operated in a manner such that partially treated wastewater still containing potentially hazardous microorganisms is released into the terrestrial and aquatic environment at random times. Northern communities rely heavily on their local surroundings as a source of food, drinking water, and recreation, thus creating the possibility of human exposure to wastewater effluent. Human exposure to microbial hazards present in municipal wastewater can lead to acute gastrointestinal illness or more severe disease. Although estimating the actual disease burdens associated with wastewater exposures in Arctic communities is challenging, waterborne- and sanitation-related illness is believed to be comparatively higher than in other parts of Canada. This review offers a conceptual framework and evaluation of current knowledge to enable the first microbial risk assessment of exposure scenarios associated with food-harvesting and recreational activities in Arctic communities, where simplified wastewater systems are being operated.
PubMed ID
28224339 View in PubMed
Less detail

Wastewater treatment and public health in Nunavut: a microbial risk assessment framework for the Canadian Arctic.

https://arctichealth.org/en/permalink/ahliterature297768
Source
Environ Sci Pollut Res Int. 2018 Nov; 25(33):32860-32872
Publication Type
Journal Article
Review
Date
Nov-2018
Author
Kiley Daley
Rob Jamieson
Daniel Rainham
Lisbeth Truelstrup Hansen
Author Affiliation
Centre for Water Resources Studies, Dalhousie University, Halifax, NS, Canada. kiley.daley@dal.ca.
Source
Environ Sci Pollut Res Int. 2018 Nov; 25(33):32860-32872
Date
Nov-2018
Language
English
Publication Type
Journal Article
Review
Keywords
Arctic Regions
Bays
Drinking Water - microbiology
Environmental Exposure - adverse effects - analysis
Gastrointestinal Diseases - etiology
Humans
Inuits
Nunavut
Public Health
Risk Assessment - methods
Sanitation
Waste Disposal, Fluid - methods
Waste Water - microbiology
Waterborne Diseases - etiology
Wetlands
Abstract
Wastewater management in Canadian Arctic communities is influenced by several geographical factors including climate, remoteness, population size, and local food-harvesting practices. Most communities use trucked collection services and basic treatment systems, which are capable of only low-level pathogen removal. These systems are typically reliant solely on natural environmental processes for treatment and make use of existing lagoons, wetlands, and bays. They are operated in a manner such that partially treated wastewater still containing potentially hazardous microorganisms is released into the terrestrial and aquatic environment at random times. Northern communities rely heavily on their local surroundings as a source of food, drinking water, and recreation, thus creating the possibility of human exposure to wastewater effluent. Human exposure to microbial hazards present in municipal wastewater can lead to acute gastrointestinal illness or more severe disease. Although estimating the actual disease burdens associated with wastewater exposures in Arctic communities is challenging, waterborne- and sanitation-related illness is believed to be comparatively higher than in other parts of Canada. This review offers a conceptual framework and evaluation of current knowledge to enable the first microbial risk assessment of exposure scenarios associated with food-harvesting and recreational activities in Arctic communities, where simplified wastewater systems are being operated.
PubMed ID
28224339 View in PubMed
Less detail

10 records – page 1 of 1.