Contact With Beach Sand Among Beachgoers and Risk of Illness
Open Access
- 18 June 2009
- journal article
- research article
- Published by Oxford University Press (OUP) in American Journal of Epidemiology
- Vol. 170 (2), 164-172
- https://doi.org/10.1093/aje/kwp152
Abstract
Recent studies of beach sand fecal contamination have triggered interest among scientists and in the media. Although evidence shows that beach sand can harbor high concentrations of fecal indicator organisms, as well as fecal pathogens, illness risk associated with beach sand contact is not well understood. Beach visitors at 7 US beaches were enrolled in the National Epidemiological and Environmental Assessment of Recreational Water (NEEAR) Study during 2003–2005 and 2007 and asked about sand contact on the day of their visit to the beach (digging in the sand, body buried in the sand). Then, 10–12 days after their visit, participants were telephoned to answer questions about any health symptoms experienced since the visit. The authors completed 27,365 interviews. Digging in the sand was positively associated with gastrointestinal illness (adjusted incidence proportion ratio (aIPR) = 1.13, 95% confidence interval (CI): 1.02, 1.25) and diarrhea (aIPR = 1.20, 95% CI: 1.05, 1.36). The association was stronger between those buried in the sand and gastrointestinal illness (aIPR = 1.23, 95% CI: 1.05, 1.43) and diarrhea (aIPR = 1.24, 95% CI: 1.01, 1.52). Nonenteric illnesses did not show a consistent association with sand contact activities. Sand contact activities were associated with enteric illness at beach sites. Variation in beach-specific results suggests that site-specific factors may be important in the risk of illness following sand exposure.Keywords
This publication has 30 references indexed in Scilit:
- Prevalence and distribution of fecal indicator organisms in South Florida beach sand and preliminary assessment of health effects associated with beach sand exposureMarine Pollution Bulletin, 2007
- The potential for beach sand to serve as a reservoir for Escherichia coli and the physical influences on cell die-offJournal of Applied Microbiology, 2007
- Luminex detection of fecal indicators in river samples, marine recreational water, and beach sandMarine Pollution Bulletin, 2007
- Beach Sand and Sediments are Temporal Sinks and Sources of Escherichia coli in Lake SuperiorEnvironmental Science & Technology, 2007
- Examination of the Watershed-Wide Distribution of Escherichia coli along Southern Lake Michigan: an Integrated ApproachApplied and Environmental Microbiology, 2006
- Monitoring marine recreational water quality using multiple microbial indicators in an urban tropical environmentWater Research, 2004
- Foreshore Sand as a Source of Escherichia coli in Nearshore Water of a Lake Michigan BeachApplied and Environmental Microbiology, 2003
- Occurrence of Escherichia coli and Enterococci in Cladophora (Chlorophyta) in Nearshore Water and Beach Sand of Lake MichiganApplied and Environmental Microbiology, 2003
- Fecal indicator bacteria are abundant in wet sand at freshwater beachesWater Research, 2003
- In vitrosurvival of human pathogenic fungi in Hawaiian beach sandMedical Mycology, 1979