Article
Environmental Sciences
Lorena da Graca Pedrosa de Macena, Renato Castiglia Feitosa, Jansen Couto da Silva, Fernando Cesar Ferreira, Adriana Goncalves Maranha, Marcelo Luiz Lima Branda, Nathalia Goncalves Santos Caldeira, Jessica Soldani Couto, Mariana Goncalves Coelho de Azevedo, Bruna Barbosa de Paula, Marize Pereira Miagostovich
Summary: This study assessed the microbiological contamination of a metropolitan marine area with a marine outfall for domestic sewage. Intact human mastadenovirus (HAdV) was detected in 10% of water samples suitable for bathing, indicating the sources of contamination are drainage channels flowing into the sea. The use of intact HAdV as a complementary parameter is suggested to assess recreational water quality.
MARINE POLLUTION BULLETIN
(2023)
Article
Engineering, Environmental
Akechai Kongprajug, Natcha Chyerochana, Surapong Rattanakul, Thammanitchpol Denpetkul, Watsawan Sangkaew, Pornjira Somnark, Yupin Patarapongsant, Kanokpon Tomyim, Montakarn Sresung, Skorn Mongkolsuk, Kwanrawee Sirikanchana
Summary: The study indicated that two tourist beaches in Thailand were contaminated with fecal pollution primarily from human sewage. Human-specific markers like HPyVs were more prevalent during the wet season, suggesting the need for increased monitoring during this period. The use of MST markers could help in more accurately assessing fecal pollution and developing a more effective water quality monitoring plan.
Article
Engineering, Environmental
Mike Cyterski, Orin C. Shanks, Pauline Wanjugi, Brian McMinn, Asja Korajkic, Kevin Oshima, Rich Haugland
Summary: This study uses statistical models to predict the concentrations of E. coli and coliphage, and finds that qPCR-based enterococci and Bacteroidales models have the highest predictive performance, while F+ coliphage consistently yields poor performing models. The influential covariates vary by microbial indicator and site.
Article
Environmental Sciences
Abir Chahouri, Nabil Radouane, Bouchra Yacoubi, Abdellatif Moukrim, Ali Banaoui
Summary: Marine and estuarine environments are often contaminated by microbiological factors, which have negative effects on their use and human health. This study compared fecal indicator bacteria (FIB) and bacterial pathogen profiles in two ecosystems in Agadir Bay over a two-year period, to investigate the impact of human activities. The study found that Vibrio target pathogens were frequently detected, while Salmonella was less prevalent. In addition, other pathogenic bacteria such as Cronobacter sakzakii, Pseudomonas fluorescens, and Aeromonas hydrophila were also identified.
MARINE POLLUTION BULLETIN
(2022)
Article
Multidisciplinary Sciences
Marisol Cira, Anisha Bafna, Christine M. Lee, Yuwei Kong, Benjamin Holt, Luke Ginger, Kerry Cawse-Nicholson, Lucy Rieves, Jennifer A. Jay
Summary: Wildfires can lead to increased levels of runoff and sediment, as well as microbial contamination, impacting coastal ecosystems. This study used remote sensing and in situ data analysis to examine the oceanic responses to the 2018 Woolsey Fire. The results showed significant changes in water quality in the coastal areas near the burn area, with increased levels of sediment and microbial indicators.
SCIENTIFIC REPORTS
(2022)
Article
Microbiology
Asja Korajkic, Brian R. McMinn, Valerie J. Harwood
Summary: This study investigated the impact of lakewater and wastewater protozoa on the decay of culturable fecal indicator bacteria (FIB) and coliphages under sunlight and shaded conditions. The results showed that FIB decayed more rapidly than coliphages, and lake protozoa had a greater impact on decay than wastewater protozoa. Sunlight and wastewater protozoa accelerated F+ coliphage decay. Differential responses of FIB and coliphages to environmental factors further emphasize the importance of studying the relationship between coliphage decay and viral pathogens under environmentally relevant conditions.
Article
Engineering, Environmental
Wan Yang, Chen Cai, Donghai Yang, Xiaohu Dai
Summary: This study compared the responses of bacterial community, human pathogenic bacteria (HPB), and fecal indicator bacteria (FIB) to sludge pretreatment-anaerobic digestion (AD). The results showed that AD drove the variation of bacterial community and led to the convergence of HPB communities in pretreated sludge. FIB was found to be suitable for characterizing general pathogen removal rather than showing the real pattern of HPB. AD-related parameters played an important role in assessing pathogen inactivation.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Environmental Sciences
Mery Ndione, Pascaline Ory, Tony Agion, Michael Treilles, Luc Vacher, Benoit Simon-Bouhet, Maelig Le Beguec, Philippe Pineau, Helene Montanie, Helene Agogue
Summary: This study investigates the fecal contamination dynamic at two bathing sites in Aytre Bay, France. The results reveal that fecal indicator bacteria abundances occasionally exceed the European regulatory threshold in winter, summer, and fall. The poor water quality is primarily due to high enterococci abundance. Negative correlations are found between fecal indicator bacteria and water temperature and salinity, while positive correlations are found between fecal indicator bacteria and rainfall, PO4, NO3, NO2, and SiO2, mostly in water.
MARINE POLLUTION BULLETIN
(2022)
Article
Environmental Sciences
Kevin L. Wagner, Terry J. Gentry, R. Daren Harmel, Emily C. Pope, Larry A. Redmon
Summary: This study found that grazing management and stocking rate did not significantly impact bacteria levels, but the timing of runoff events in relation to grazing events affected bacteria loading. The BoBac/AllBac ratio confirmed that fecal contamination in runoff mainly originated from background sources rather than cattle.
Article
Engineering, Environmental
Andrew J. Craig, Chris R. Rehmann, Laura M. Alt, Lisa A. Schulte, Michelle L. Soupir
Summary: Vegetative filter strips (VFS) have been proven effective in reducing the downstream transport of agroecosystem contaminants. Prairie strips, a newly developed type of VFS, not only reduce sediment, nitrogen, and phosphorus losses, but also lower the concentration of pathogens.
JOURNAL OF THE AMERICAN WATER RESOURCES ASSOCIATION
(2022)
Article
Environmental Sciences
Ibrahim Ahmed Hamza, Sherif Abd-Elmaksoud
Summary: A major threat to water quality is the discharge of human-derived wastewater, which can cause waterborne illnesses associated with enteric viruses. A poor association exists between fecal indicator bacteria and virus fate in the environment, especially during wastewater treatment. This study evaluated the potential of using a novel human gut bacteriophage crAssphage as an indicator for the performance of viral reduction in the wastewater treatment process. The findings showed a significant correlation between crAssphage, HAdV, and HPyV during the wastewater treatment process, suggesting that crAssphage could be a reliable indicator for viral removal in wastewater treatment.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
E. Kelly, M. Gidley, C. Sinigalliano, N. Kumar, H. M. Solo-Gabriele
Summary: The study evaluated the effects of wastewater infrastructure construction on regional and local environments in Monroe County, Florida. The most significant factors influencing fecal coliform and enterococci concentrations were rainfall and project period. On a yearly basis, infrastructure projects showed desired effects in reducing FIB levels in the years following construction.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Kyle J. Lininger, Michael Ormanoski, Carolyn M. Rodak
Summary: Fecal indicator bacteria (FIB), such as E. coli and Enterococci, are used to indicate the potential of fecal contamination in waterways. The impact of combined sewer overflows (CSOs) on local water quality and FIB presence was explored in two cities on the Mohawk River in upstate New York, USA. Positive correlations between FIB and rainfall were identified in one city, while the other city showed less significant correlations. The city with CSOs demonstrated greater FIB concentrations, likely due to a combination of urban runoff, CSOs, and sediment resuspension.
Article
Environmental Sciences
Tao Huang, Wilfred M. Wollheim, Stephen H. Jones
Summary: Fecal contamination is a major cause of global water quality impairment, and aquatic ecosystems play a crucial role in removing fecal contamination. Understanding the mechanisms of fecal contamination removal in river networks under different flow conditions is essential. A river network model, FrAMES-Ecoli, was used to study the removal of fecal indicator bacteria in New England watersheds during summers. The results showed that river networks can effectively remove fecal indicator bacteria, with removal rates influenced by hydrologic conditions, watershed size, and source distribution. These findings highlight the importance of considering river network removal in managing fecal contamination in downstream receiving waters.
Article
Biotechnology & Applied Microbiology
Christopher A. Baker, Giselle Almeida, Jung Ae Lee, Kristen E. Gibson
Summary: The research demonstrates that the survival of fecal indicator bacteria, pathogenic microorganisms, and other bacterial and viral surrogates in freshwater differs by sample type (sediment/water) and season. There is a greater microbial persistence in sediments than in water over time, with differences in survival among microorganisms in relation to the fecal indicator bacteria E. coli and enterococci. Further investigation is needed to determine the best surrogates to assess pathogen survival in agricultural water for fresh produce.
APPLIED AND ENVIRONMENTAL MICROBIOLOGY
(2021)
Article
Environmental Sciences
Eunice C. Chern, Dawn King, Richard Haugland, Stacy Pfaller
JOURNAL OF WATER AND HEALTH
(2015)
Article
Environmental Sciences
Timothy J. Wade, Elizabeth Sams, Kristen P. Brenner, Richard Haugland, Eunice Chern, Michael Beach, Larry Wymer, Clifford C. Rankin, David Love, Quanlin Li, Rachel Noble, Alfred P. Dufour
ENVIRONMENTAL HEALTH
(2010)
Article
Public, Environmental & Occupational Health
Christopher D. Heaney, Elizabeth Sams, Alfred P. Dufour, Kristen P. Brenner, Richard A. Haugland, Eunice Chern, Steve Wing, Stephen Marshall, David C. Love, Marc Serre, Rachel Noble, Timothy J. Wade
Article
Environmental Sciences
Eunice C. Chern, Kristen Brenner, Larry Wymer, Richard A. Haugland
JOURNAL OF WATER AND HEALTH
(2014)
Article
Engineering, Environmental
Mano Sivaganesan, Richard A. Haugland, Eunice C. Chern, Orin C. Shanks
Article
Engineering, Environmental
Eunice C. Chern, Diana W. Tsai, Oladele A. Ogunseitan
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2007)