[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: E. coli/enterococci in the sand; Water Research, Volume 37, Issue 16, Pages3978-3982
Its an important article. People interested in Elizabeth's paper may also
be interested in our paper in Applied and Environmental Microbiology. It's
free on the web at....
http://www.sourcemolecular.com/whitman2.pdf
Richard Whitman
Chief, Lake Michigan Ecological Research Station
219-926-8336 Ext. 424
1100 North Mineral Springs Road
Porter, IN 46304
"Shannon Briggs"
<BRIGGSSL@michigan. To: <beachnet@great-lakes.net>,
gov> <beachinfo@lists.epa.gov>
Sent by: cc:
owner-beachnet@grea Subject: E. coli/enterococci in the sand; Water Research,
t-lakes.net Volume 37, Issue 16, Pages 3978-3982
08/10/2004 06:31 AM
FYI: I received questions about this topic recently and I am posting it in
case anyone else finds it helpful.
Fecal indicator bacteria are abundant in wet sand at freshwater beaches,
Water Research, Volume 37, Issue 16, Pages 3978-3982 (September 2003)
Elizabeth Wheeler Alm, Janice Burke and Anne Spain
http://www.sciencedirect.com/science?_ob=GatewayURL&_method=citationSearch&_uoikey=B6V73-48V7W71-6&_origin=EMFR&_version=1&md5=b6276afa56b7442f32a9d85113d53eb3
Abstract
Potential fecal contamination of sand in the wave-washed zone of public
bathing beaches is overlooked in beach monitoring programs. Activity in
this zone can bring pathogens to the sand surface or into the water,
presenting a health risk to sensitive populations. On a unit weight basis
(colony forming units per 100 g), the mean summer abundance of the fecal
indicator bacteria enterococci and Escherichia coli was 3*38 times higher
in the top 20 cm of wet-sand cores than in the water column at six
freshwater bathing beaches. E. coli were 4 times more abundant than
enterococci in water but counts were similar in the sand. A correlation
(r=0.60) existed between E. coli counts in the water and in the top 5 cm of
sand only, whereas no relationship existed between enterococci abundance in
water and sand. In general, enterococci were most numerous in the 5*10 cm
sand stratum and E. coli in the 0*5 cm stratum. These preliminary data show
that wet freshwater beach sand is a reservoir of fecal indicator bacteria.
Enteric pathogens may also be present in beach sand.
Author Keywords: Fecal indicators; Water quality; Beach monitoring; Sand
Corresponding author. Tel.: +1-989-774-2503; fax: +1-989-774-3462
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
beachnet is hosted by the Great Lakes Information Network:
http://www.great-lakes.net
To unsubscribe from this list: send mail to majordomo@great-lakes.net
with the command 'unsubscribe beachnet' in the body of your message. No
quotes or subject line are required.
About : http://www.great-lakes.net/lists/beachnet/beachnet.info
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
beachnet is hosted by the Great Lakes Information Network:
http://www.great-lakes.net
To unsubscribe from this list: send mail to majordomo@great-lakes.net
with the command 'unsubscribe beachnet' in the body of your message. No
quotes or subject line are required.
About : http://www.great-lakes.net/lists/beachnet/beachnet.info
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *