A B Boehm

Summary

Affiliation: Stanford University
Country: USA

Publications

  1. ncbi request reprint Tidal forcing of enterococci at marine recreational beaches at fortnightly and semidiurnal frequencies
    Alexandria B Boehm
    Dept of Civil and Environmental Engineering, Environmental Water Studies, Stanford University, Stanford, California 94305 4020, USA
    Environ Sci Technol 39:5575-83. 2005
  2. ncbi request reprint Regional public health cost estimates of contaminated coastal waters: a case study of gastroenteritis at southern California beaches
    Suzan Given
    Department of Environmental Health Sciences, Environmental Science and Engineering Program, 46 071A Center for Health Sciences, University of California, Los Angeles 90095 1772, USA
    Environ Sci Technol 40:4851-8. 2006
  3. ncbi request reprint Enterococci concentrations in diverse coastal environments exhibit extreme variability
    Alexandria B Boehm
    Department of Civil and Environmental Engineering, Environmental and Water Studies, Stanford University, Stanford, California 94305 4020, USA
    Environ Sci Technol 41:8227-32. 2007
  4. ncbi request reprint Diversity and transport of microorganisms in intertidal sands of the california coast
    Alexandria B Boehm
    Environmental and Water Studies, Department of Civil and Environmental Engineering, Stanford University, Stanford, California, USA
    Appl Environ Microbiol 80:3943-51. 2014
  5. ncbi request reprint Performance of forty-one microbial source tracking methods: a twenty-seven lab evaluation study
    Alexandria B Boehm
    Environmental and Water Studies, Department of Civil and Environmental Engineering, Stanford University, Stanford, CA 94305, USA Electronic address
    Water Res 47:6812-28. 2013
  6. doi request reprint Solar inactivation of four Salmonella serovars in fresh and marine waters
    Alexandria B Boehm
    Environmental and Water Studies, Department of Civil and Environmental Engineering, Stanford, California 94305, USA
    J Water Health 10:504-10. 2012
  7. ncbi request reprint Comparison of enterovirus and adenovirus concentration and enumeration methods in seawater from Southern California, USA and Baja Malibu, Mexico
    Lauren M Sassoubre
    Environmental and Water Studies, Department of Civil and Environmental Engineering, Stanford University, Stanford, CA 94305 4020, USA
    J Water Health 10:419-30. 2012
  8. pmc Occurrence and persistence of bacterial pathogens and indicator organisms in beach sand along the California coast
    Kevan M Yamahara
    Department of Civil and Environmental Engineering, Environmental Engineering and Science, Stanford University, Stanford, California, USA
    Appl Environ Microbiol 78:1733-45. 2012
  9. doi request reprint A sea change ahead for recreational water quality criteria
    Alexandria B Boehm
    Department of Civil and Environmental Engineering, Stanford University, Stanford, CA, USA
    J Water Health 7:9-20. 2009
  10. ncbi request reprint An analytical model of enterococci inactivation, grazing, and transport in the surf zone of a marine beach
    Alexandria B Boehm
    Department of Civil and Environmental Engineering, Environmental and Water Studies, Stanford University, Stanford, CA 94305 4020, USA
    Water Res 39:3565-78. 2005

Collaborators

Detail Information

Publications41

  1. ncbi request reprint Tidal forcing of enterococci at marine recreational beaches at fortnightly and semidiurnal frequencies
    Alexandria B Boehm
    Dept of Civil and Environmental Engineering, Environmental Water Studies, Stanford University, Stanford, California 94305 4020, USA
    Environ Sci Technol 39:5575-83. 2005
    ..Possibilities include ENT-laden groundwater (saline and fresh) from the beach aquifer as well as ENT-enriched sands, decaying wrack, and bird feces near the high water line...
  2. ncbi request reprint Regional public health cost estimates of contaminated coastal waters: a case study of gastroenteritis at southern California beaches
    Suzan Given
    Department of Environmental Health Sciences, Environmental Science and Engineering Program, 46 071A Center for Health Sciences, University of California, Los Angeles 90095 1772, USA
    Environ Sci Technol 40:4851-8. 2006
    ..Results demonstrate that improving coastal water quality could result in a reduction of gastrointestinal illnesses locally and a concurrent savings in expenditures on related health care costs...
  3. ncbi request reprint Enterococci concentrations in diverse coastal environments exhibit extreme variability
    Alexandria B Boehm
    Department of Civil and Environmental Engineering, Environmental and Water Studies, Stanford University, Stanford, California 94305 4020, USA
    Environ Sci Technol 41:8227-32. 2007
    ..Multiple samples must be taken to gain a snapshot into the patchy structure of microbial water quality and associated human health risk...
  4. ncbi request reprint Diversity and transport of microorganisms in intertidal sands of the california coast
    Alexandria B Boehm
    Environmental and Water Studies, Department of Civil and Environmental Engineering, Stanford University, Stanford, California, USA
    Appl Environ Microbiol 80:3943-51. 2014
    ..The ease with which microbes were mobilized suggests that intertidal sands may represent a reservoir of bacteria that seed the beach aquifer where they may partake in biogeochemical cycling. ..
  5. ncbi request reprint Performance of forty-one microbial source tracking methods: a twenty-seven lab evaluation study
    Alexandria B Boehm
    Environmental and Water Studies, Department of Civil and Environmental Engineering, Stanford University, Stanford, CA 94305, USA Electronic address
    Water Res 47:6812-28. 2013
    ..While this study evaluated the marker performance in defined samples, further field testing as well as development of frameworks for fecal source allocation and risk assessment are needed. ..
  6. doi request reprint Solar inactivation of four Salmonella serovars in fresh and marine waters
    Alexandria B Boehm
    Environmental and Water Studies, Department of Civil and Environmental Engineering, Stanford, California 94305, USA
    J Water Health 10:504-10. 2012
    ..The results document intra-species variation in photo-inactivation, likely owing to differences in intracellular concentrations of photo-sensitizing molecules or molecules that quench reactive species...
  7. ncbi request reprint Comparison of enterovirus and adenovirus concentration and enumeration methods in seawater from Southern California, USA and Baja Malibu, Mexico
    Lauren M Sassoubre
    Environmental and Water Studies, Department of Civil and Environmental Engineering, Stanford University, Stanford, CA 94305 4020, USA
    J Water Health 10:419-30. 2012
    ..Further research is needed to determine if detection of viruses by rapid methods such as (RT)QPCR can be a useful water quality monitoring tool to assess health risks in recreational waters...
  8. pmc Occurrence and persistence of bacterial pathogens and indicator organisms in beach sand along the California coast
    Kevan M Yamahara
    Department of Civil and Environmental Engineering, Environmental Engineering and Science, Stanford University, Stanford, California, USA
    Appl Environ Microbiol 78:1733-45. 2012
    ..Decay rates measured by QPCR were lower than those measured with culture-dependent methods. Enterococcal persistence and possible growth were observed for wetted microcosms relative to unwetted controls...
  9. doi request reprint A sea change ahead for recreational water quality criteria
    Alexandria B Boehm
    Department of Civil and Environmental Engineering, Stanford University, Stanford, CA, USA
    J Water Health 7:9-20. 2009
    ....
  10. ncbi request reprint An analytical model of enterococci inactivation, grazing, and transport in the surf zone of a marine beach
    Alexandria B Boehm
    Department of Civil and Environmental Engineering, Environmental and Water Studies, Stanford University, Stanford, CA 94305 4020, USA
    Water Res 39:3565-78. 2005
    ....
  11. pmc Faecal indicator bacteria enumeration in beach sand: a comparison study of extraction methods in medium to coarse sands
    A B Boehm
    Department of Civil and Environmental Engineering, Stanford University, Stanford, CA 94305, USA
    J Appl Microbiol 107:1740-50. 2009
    ..The purpose of the study was to compare methods for extraction of faecal bacteria from sands and recommend a standardized extraction technique...
  12. pmc Diurnal variation in Enterococcus species composition in polluted ocean water and a potential role for the enterococcal carotenoid in protection against photoinactivation
    Peter A Maraccini
    Environmental and Water Studies, Department of Civil and Environmental Engineering, Stanford University, Stanford, California, USA
    Appl Environ Microbiol 78:305-10. 2012
    ..The results suggest that using enterococcal species composition as a microbial source tracking tool may be hindered by the differential environmental persistence of pigmented and nonpigmented enterococci...
  13. ncbi request reprint Groundwater discharge: potential association with fecal indicator bacteria in the surf zone
    Alexandria B Boehm
    Environmental Science and Engineering, Department of Civil and Environmental Engineering, Stanford University, Stanford, California 94305 4020, USA
    Environ Sci Technol 38:3558-66. 2004
    ..This work establishes a mechanism for the subterranean delivery of FIB pollution to the surf zone from the surficial aquifer and presents evidence that supports an association between groundwater discharge and FIB...
  14. doi request reprint Covariation and photoinactivation of traditional and novel indicator organisms and human viruses at a sewage-impacted marine beach
    Alexandria B Boehm
    Environmental and Water Studies, Department of Civil and Environmental Engineering, Stanford University, Stanford, California 94305, USA
    Environ Sci Technol 43:8046-52. 2009
    ....
  15. ncbi request reprint Model of microbial transport and inactivation in the surf zone and application to field measurements of total coliform in Northern Orange County, California
    Alexandria B Boehm
    Department of Civil and Environmental Engineering, Environmental Engineering and Science Program, Stanford University, Stanford, California 94305 4020, USA
    Environ Sci Technol 37:5511-7. 2003
    ..In addition, the results stress the importance of understanding hydrodynamics when conducting microbial source tracking at wave-dominated marine beaches...
  16. doi request reprint Quantitative PCR-based detection of pathogenic Leptospira in Hawai'ian coastal streams
    Emily J Viau
    Environmental and Water Studies, Department of Civil and Environmental Engineering, Stanford University, CA 94305, USA
    J Water Health 9:637-46. 2011
    ....
  17. ncbi request reprint Tiered approach for identification of a human fecal pollution source at a recreational beach: case study at Avalon Bay, Catalina Island, California
    Alexandria B Boehm
    Department of Civil and Environmental Engineering Stanford University, Stanford, California 94305 4020, USA
    Environ Sci Technol 37:673-80. 2003
    ..Multiple shoreline samples and two subsurface water samples tested positive for human-specific bacteria and enterovirus, suggesting that at least a portion of the FIB contamination is from human sewage...
  18. doi request reprint Distribution and diversity of the enterococcal surface protein (esp) gene in animal hosts and the Pacific coast environment
    B A Layton
    Environmental and Water Studies, Department of Civil and Environmental Engineering, Stanford University, Stanford, CA 94305, USA
    J Appl Microbiol 106:1521-31. 2009
    ....
  19. ncbi request reprint Enterococcus species distribution among human and animal hosts using multiplex PCR
    B A Layton
    Environmental and Water Studies, Department of Civil and Environmental Engineering, Stanford University, Stanford, CA, USA
    J Appl Microbiol 109:539-47. 2010
    ..This study evaluated the use of Enterococcus species differentiation as a tool for microbial source tracking (MST) in recreational waters...
  20. pmc Denitrifier community composition along a nitrate and salinity gradient in a coastal aquifer
    Alyson E Santoro
    Department of Civil and Environmental Engineering, Stanford University, Stanford, CA 94305 2115, USA
    Appl Environ Microbiol 72:2102-9. 2006
    ....
  21. pmc Growth of enterococci in unaltered, unseeded beach sands subjected to tidal wetting
    Kevan M Yamahara
    Department of Civil and Environmental Engineering, Environmental and Water Studies, Stanford University, Stanford, CA 94305 4020, USA
    Appl Environ Microbiol 75:1517-24. 2009
    ..The results provide evidence that enterococci may not be an appropriate indicator of enteric disease risk at recreational beaches subject to nonpoint sources of pollution...
  22. ncbi request reprint Enterococci predictions from partial least squares regression models in conjunction with a single-sample standard improve the efficacy of beach management advisories
    Deyi Hou
    Environmental Water Studies, Department of Civil and Environmental Engineering, Stanford University, Stanford, California 94305 4020, USA
    Environ Sci Technol 40:1737-43. 2006
    ....
  23. doi request reprint Hands, water, and health: fecal contamination in Tanzanian communities with improved, non-networked water supplies
    Amy J Pickering
    Emmet Interdisciplinary Program in Environment and Resources, School of Earth Sciences, Stanford University, Stanford, California 94305, USA
    Environ Sci Technol 44:3267-72. 2010
    ..The results suggest that reducing fecal contamination on hands should be investigated as a strategy for improving stored drinking water quality and health among households using non-networked water supplies...
  24. doi request reprint Caffeine and agricultural pesticide concentrations in surface water and groundwater on the north shore of Kauai (Hawaii, USA)
    Karen L Knee
    Department of Geological and Environmental Sciences, Stanford University, Stanford, CA 94305, USA
    Mar Pollut Bull 60:1376-82. 2010
    ..Caffeine was not detected in offshore ocean samples or river samples upstream of human development. A positive correlation between caffeine and enterococci suggested a possible wastewater caffeine source...
  25. pmc The effects of informational interventions on household water management, hygiene behaviors, stored drinking water quality, and hand contamination in peri-urban Tanzania
    Jennifer Davis
    Department of Civil and Environmental Engineering, Stanford University, Stanford, CA 94305, USA
    Am J Trop Med Hyg 84:184-91. 2011
    ..Findings from this study suggest that additional work is needed to elucidate the conditions under which such testing represents a cost-effective strategy to motivate improved household water management and hand hygiene...
  26. doi request reprint Impact of urbanization and agriculture on the occurrence of bacterial pathogens and stx genes in coastal waterbodies of central California
    Sarah P Walters
    Stanford University, Environmental and Water Studies, Department of Civil and Environmental Engineering, 473 Via Ortega, Stanford, CA 94305, USA
    Water Res 45:1752-62. 2011
    ..Results suggest that FIB and pathogen concentrations are influenced, in part, by their flux from the land, which is exacerbated during rainfall; once waterborne, bacterial persistence is affected by water temperature and salinity...
  27. pmc Efficacy of waterless hand hygiene compared with handwashing with soap: a field study in Dar es Salaam, Tanzania
    Amy J Pickering
    Emmett Interdisciplinary Program in Environment and Resources, School of Earth Sciences and Civil and Environmental Engineering, and Woods Institute for the Environment, Stanford University, Stanford, CA 94305, USA
    Am J Trop Med Hyg 82:270-8. 2010
    ..01). The feasibility and health impacts of promoting hand sanitizer as an alternative hand hygiene option for water-constrained environments should be assessed...
  28. pmc Detection and transformation of genome segments that differ within a coastal population of Vibrio cholerae strains
    Michael C Miller
    Department of Medicine, Stanford University School of Medicine, CA 94305, USA
    Appl Environ Microbiol 73:3695-704. 2007
    ..cholerae clones can gain access to the V. cholerae pan-genome...
  29. pmc Genomic and phenotypic diversity of coastal Vibrio cholerae strains is linked to environmental factors
    Daniel P Keymer
    Department of Civil Engineering, Stanford University School of Medicine, CA 94305, USA
    Appl Environ Microbiol 73:3705-14. 2007
    ..These results identify gene content and metabolic pathways that are likely selected for in certain coastal environments and may influence V. cholerae population structure in aquatic environments...
  30. doi request reprint Persistence of nucleic acid markers of health-relevant organisms in seawater microcosms: implications for their use in assessing risk in recreational waters
    Sarah P Walters
    Stanford University, Department of Civil and Environmental Engineering, 473 Via Ortega, M 06, Stanford, CA 94305, USA
    Water Res 43:4929-39. 2009
    ..These results indicate differential persistence of genetic markers and culturable organisms of public health relevance in an environmental matrix and have important management implications...
  31. doi request reprint Shifts in the relative abundance of ammonia-oxidizing bacteria and archaea across physicochemical gradients in a subterranean estuary
    Alyson E Santoro
    Department of Civil and Environmental Engineering, Stanford University, Stanford, CA 94305, USA
    Environ Microbiol 10:1068-79. 2008
    ..These results offer new insights into the ecology of AOA and beta-AOB by elucidating conditions that may favour the numerical dominance of beta-AOB over AOA in coastal sediments...
  32. pmc Biogeographic patterns in genomic diversity among a large collection of Vibrio cholerae isolates
    Daniel P Keymer
    Department of Civil and Environmental Engineering, Stanford University, Stanford, California 94305, USA
    Appl Environ Microbiol 75:1658-66. 2009
    ..cholerae population structure in this system...
  33. ncbi request reprint Frequent occurrence of the human-specific Bacteroides fecal marker at an open coast marine beach: relationship to waves, tides and traditional indicators
    Alyson E Santoro
    Department of Civil and Environmental Engineering, Stanford University, Stanford, CA 94305, USA
    Environ Microbiol 9:2038-49. 2007
    ..These data provide strong support for the idea that multiple time points and physical conditions should be considered when assessing coastal water quality...
  34. ncbi request reprint Beach sands along the California coast are diffuse sources of fecal bacteria to coastal waters
    Kevan M Yamahara
    Department of Civil and Environmental Engineering, Environmental and Water Studies, Stanford University, Stanford, California 94305 4020, USA
    Environ Sci Technol 41:4515-21. 2007
    ..Follow-up sampling at LP revealed the presence of the human specific Bacteroides marker in water and sand...
  35. doi request reprint Microbial and metal water quality in rain catchments compared with traditional drinking water sources in the East Sepik Province, Papua New Guinea
    Helena M Horak
    School of Medicine, Stanford University, 300 Pasteur Drive, Stanford, CA 94305, USA
    J Water Health 8:126-38. 2010
    ..Individuals in villages using Sepik River water as their primary water source had significantly higher incidence of diarrhoea than those primarily using other water sources (streams, dug wells and catchments)...
  36. doi request reprint A model of exposure to rotavirus from nondietary ingestion iterated by simulated intermittent contacts
    Timothy R Julian
    Department of Civil and Environmental Engineering, Stanford University, Stanford, CA 94305 4020, USA
    Risk Anal 29:617-32. 2009
    ..The model demonstrated that mouthing of fomes is the primary exposure route, with hand mouthing contributions accounting for less than one-fifth of the child's dose over the first 10 minutes of interaction...
  37. pmc Comparison of surface sampling methods for virus recovery from fomites
    Timothy R Julian
    Department of Civil and Environmental Engineering, Environmental and Water Studies, Stanford University, Stanford, CA 94305 4020, USA
    Appl Environ Microbiol 77:6918-25. 2011
    ..40 and for MS2 RNA of 0.07. Use of the proposed method for virus recovery in future fomite sampling studies would provide opportunities to compare findings across multiple studies...
  38. doi request reprint Sources and fate of Salmonella and fecal indicator bacteria in an urban creek
    Lauren M Sassoubre
    Environmental and Water Studies, Alexandria Boehm, Department of Civil and Environmental Engineering, Stanford University, 473 Via Ortega, Mail Code 4020, Stanford, CA 94305, USA
    J Environ Monit 13:2206-12. 2011
    ..Additionally, the rate constants determined through the modeling will be useful for modeling these organisms in other surface waters, and represent useful benchmarks for comparison to laboratory-derived inactivation rates...
  39. ncbi request reprint Cross-shelf transport at Huntington Beach. Implications for the fate of sewage discharged through an offshore ocean outfall
    Alexandria B Boehm
    Department of Chemical Engineering and Materials Science, Henri Samueli School of Engineering, University of California Irvine, 92697, USA
    Environ Sci Technol 36:1899-906. 2002
    ..This advection is attributed to a mode 1 internal motion, or internal tide. On the basis of the analyses presented here, the OCSD plume cannot be ruled out as a contributor to poor bathing-water quality at Huntington Beach...
  40. ncbi request reprint Fecal indicator bacteria and Salmonella in ponds managed as bird habitat, San Francisco Bay, California, USA
    Gregory G Shellenbarger
    California Water Science Center, US Geological Survey, Placer Hall, 6000 J Street, Sacramento, CA 95819, USA
    Water Res 42:2921-30. 2008
    ..Thus, it appeared that factors other than bird abundance were most important in modulating FIB concentrations in these ponds...
  41. ncbi request reprint Scaling and management of fecal indicator bacteria in runoff from a coastal urban watershed in southern California
    Ryan L Reeves
    Department of Chemical Engineering and Materials Science, Henry Samueli School of Engineering, University of California, Irvine, California 92697, USA
    Environ Sci Technol 38:2637-48. 2004
    ..This raises the possibility that the scaling properties of pollutants in stormwater runoff (i.e., the value of n) may harbor information about the origin of nonpoint source pollution...