1
|
Shahirnia M, Vidrio-Sahagún CT, He J, Valeo C, van Duin B, Beaudry M, Neumann NF. Land use and rainfall influences on bacterial levels and sources in stormwater ponds. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:112236-112251. [PMID: 37831263 DOI: 10.1007/s11356-023-30264-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Accepted: 10/01/2023] [Indexed: 10/14/2023]
Abstract
Urban stormwater runoff is a known source of microbial contamination of stormwater ponds. However, less is known about the influences of land use and rainfall on microbial quality over time in these receiving waters. In this study, two fecal indicator bacteria (FIB), namely Escherichia coli and thermotolerant coliforms, were monitored in three stormwater ponds in Calgary, Alberta, Canada. The stormwater ponds were selected due to their potential as water sources for beneficial uses such as irrigation, which requires lower water quality than drinking water, thereby alleviating the pressure on the city's potable water demands. The selected stormwater ponds vary in size and shape, contribution catchment size, and percentages of several primary land use types. Microbial source tracking for human, dog, seagull, Canada goose, ruminant, and muskrat was also conducted to determine sources of bacterial contamination in the stormwater ponds. Sampling was conducted near the pond surface and adjacent to the shoreline, specifically near the outfalls that discharge stormwater runoff into the ponds and the inlets that convey water out of the ponds. Overall, the FIB concentrations in the vicinity of pond outfalls were significantly or relatively higher than those near pond inlets. The contamination in the McCall Lake and the Country Hills stormwater ponds showed higher amounts of human markers (40 to 60%) compared to the Inverness stormwater pond (< 20%), which coincided with their higher FIB concentration medians. The results revealed that stormwater drained from catchments with a higher percentage of commercial land use was more contaminated than those with primary residential land use, while the impacts of residential development on the FIB levels in the Inverness stormwater pond were not obvious. Furthermore, FIB concentrations in the ponds increased in response to both rain events and inter-event dry periods, with human-specific markers being predominant despite the high levels of animal markers during inter-event dry periods. Human-origin sources might be among the main microbial loading contributors in the pond catchments in general. All these findings can inform the development or improvement of measures for mitigating microbial pollution, strategies for reusing stormwater, and maintenance programs.
Collapse
Affiliation(s)
- Mina Shahirnia
- Department of Civil Engineering, University of Calgary, 2500 University Drive NW, Calgary, AB, T2N 1N4, Canada
| | | | - Jianxun He
- Department of Civil Engineering, University of Calgary, 2500 University Drive NW, Calgary, AB, T2N 1N4, Canada.
| | - Caterina Valeo
- Department of Mechanical Engineering, University of Victoria, Victoria, Canada
| | - Bert van Duin
- Department of Civil Engineering, University of Calgary, 2500 University Drive NW, Calgary, AB, T2N 1N4, Canada
- City of Calgary, Calgary, Canada
| | - Megan Beaudry
- School of Public Health, University of Alberta, Edmonton, Canada
| | - Norman F Neumann
- School of Public Health, University of Alberta, Edmonton, Canada
| |
Collapse
|
2
|
Hulvey KB, Mellon CD, Kleinhesselink AR. Rotational grazing can mitigate ecosystem service trade‐offs between livestock production and water quality in semi‐arid rangelands. J Appl Ecol 2021. [DOI: 10.1111/1365-2664.13954] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kristin B. Hulvey
- Working Lands Conservation Logan UT USA
- Department of Wildland Resources Utah State University Logan UT USA
- The Ecology Center Utah State University Logan UT USA
- Multiplier San Francisco CA USA
| | | | | |
Collapse
|
3
|
Colaiuda V, Di Giacinto F, Lombardi A, Ippoliti C, Giansante C, Latini M, Mascilongo G, Di Renzo L, Berti M, Conte A, Ferri N, Verdecchia M, Tomassetti B. Evaluating the impact of hydrometeorological conditions on E. coli concentration in farmed mussels and clams: experience in Central Italy. JOURNAL OF WATER AND HEALTH 2021; 19:512-533. [PMID: 34152303 DOI: 10.2166/wh.2021.203] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Highly populated coastal environments receive large quantities of treated and untreated wastewater from human and industrial sources. Bivalve molluscs accumulate and retain contaminants, and their analysis provides evidence of past contamination. Rivers and precipitation are major routes of bacteriological pollution from surface or sub-surface runoff flowing into coastal areas. However, relationships between runoff, precipitation, and bacterial contamination are site-specific and dependent on the physiographical characteristics of each catchment. In this work, we evaluated the influence of precipitation and river discharge on molluscs' Escherichia coli concentrations at three sites in Central Italy, aiming at quantifying how hydrometeorological conditions affect bacteriological contamination of selected bivalve production areas. Rank-order correlation analysis indicated a stronger association between E. coli concentrations and the modelled Pescara River discharge maxima (r = 0.69) than between E. coli concentration and rainfall maxima (r = 0.35). Discharge peaks from the Pescara River caused an increase in E. coli concentration in bivalves in 87% of cases, provided that the runoff peak occurred 1-6 days prior to the sampling date. Precipitation in coastal area was linked to almost 60% of cases of E. coli high concentrations and may enhance bacterial transportation offshore, when associated with a larger-scale weather system, which causes overflow occurrence.
Collapse
Affiliation(s)
- Valentina Colaiuda
- CETEMPS, University of L'Aquila, L'Aquila, Italy E-mail: ; Department of Physical and Chemical Sciences, University of L'Aquila, L'Aquila, Italy
| | - Federica Di Giacinto
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise "G. Caporale", Teramo, Italy
| | | | - Carla Ippoliti
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise "G. Caporale", Teramo, Italy
| | - Carla Giansante
- Agenzia Regionale per la Tutela dell'Ambiente - ARTA Abruzzo, Pescara, Italy
| | - Mario Latini
- World Organization for Animal Health - OIE, Paris, France
| | - Giuseppina Mascilongo
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise "G. Caporale", Teramo, Italy
| | - Ludovica Di Renzo
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise "G. Caporale", Teramo, Italy
| | - Miriam Berti
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise "G. Caporale", Teramo, Italy
| | - Annamaria Conte
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise "G. Caporale", Teramo, Italy
| | - Nicola Ferri
- Istituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise "G. Caporale", Teramo, Italy
| | - Marco Verdecchia
- Department of Physical and Chemical Sciences, University of L'Aquila, L'Aquila, Italy
| | | |
Collapse
|
4
|
Abstract
On a global scale, urbanization and climate change are two powerful forces that are reshaping ecosystems and their inhabitants [...]
Collapse
|
5
|
Rodak CM, Jayakaran AD, Moore TL, David R, Rhodes ER, Vogel JR. Urban stormwater characterization, control, and treatment. WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2020; 92:1552-1586. [PMID: 32663352 DOI: 10.1002/wer.1403] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 06/22/2020] [Accepted: 07/09/2020] [Indexed: 06/11/2023]
Abstract
This review summarizes over 280 studies published in 2019 related to the characterization, control, and management of urban stormwater runoff. A summary of quantity and quality concerns is provided in the first section of the review, serving as the foundation for the following sections which focus on the control and treatment of stormwater runoff. Finally, the impact of stormwater control devices at the watershed scale is discussed. Each section provides a self-contained overview of the 2019 literature, common themes, and future work. Several themes emerged from the 2019 literature including exploration of substrate amendments for improved water quality effluent from stormwater controls, the continued study of the role of vegetation in green infrastructure practices, and a call to action for the development of new models which generate reliable, computationally efficient results under the physical, chemical, biological, and social complexity of stormwater management. PRACTITIONER POINTS: Over 280 studies were published in 2019 related to the characterization, control, and treatment of urban stormwater. Studies on bioretention and general stormwater characteristics represented the two most common subtopics in 2019. Trends in 2019 included novel substrate amendments, studies on the role of vegetation, and advancements in computational models.
Collapse
Affiliation(s)
- Carolyn M Rodak
- Civil Engineering, State University of New York Polytechnic Institute, Utica, New York, USA
| | - Anand D Jayakaran
- Washington Stormwater Center, Washington State University, Puyallup, Washington, USA
| | - Trisha L Moore
- Biological and Agricultural Engineering, Kansas State University, Manhattan, Kansas, USA
| | - Ray David
- Greeley and Hansen, San Francisco, California, USA
| | - Emily R Rhodes
- Civil Engineering and Environmental Science, University of Oklahoma, Norman, Oklahoma, USA
| | - Jason R Vogel
- Civil Engineering and Environmental Science, University of Oklahoma, Norman, Oklahoma, USA
| |
Collapse
|
6
|
Numerical Modeling of Microbial Fate and Transport in Natural Waters: Review and Implications for Normal and Extreme Storm Events. WATER 2020. [DOI: 10.3390/w12071876] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Degradation of water quality in recreational areas can be a substantial public health concern. Models can help beach managers make contemporaneous decisions to protect public health at recreational areas, via the use of microbial fate and transport simulation. Approaches to modeling microbial fate and transport vary widely in response to local hydrometeorological contexts, but many parameterizations include terms for base mortality, solar inactivation, and sedimentation of microbial contaminants. Models using these parameterizations can predict up to 87% of variation in observed microbial concentrations in nearshore water, with root mean squared errors ranging from 0.41 to 5.37 log10 Colony Forming Units (CFU) 100 mL−1. This indicates that some models predict microbial fate and transport more reliably than others and that there remains room for model improvement across the board. Model refinement will be integral to microbial fate and transport simulation in the face of less readily observable processes affecting water quality in nearshore areas. Management of contamination phenomena such as the release of storm-associated river plumes and the exchange of contaminants between water and sand at the beach can benefit greatly from optimized fate and transport modeling in the absence of directly observable data.
Collapse
|