TY - JOUR
T1 - Comparative studies on Enterococcus, Clostridium perfringens and Staphylococcus aureus as quality indicators in tropical seawater at a Pacific Mexican beach resort
AU - Curiel-Ayala, F.
AU - Quiñones-Ramírez, E. I.
AU - Pless, R. C.
AU - González-Jasso, Eva
N1 - Funding Information:
We thank the Consejo Nacional de Ciencia y Tecnología (CONACYT, the National Council for Science and Technology in Mexico) for support through a student stipend (No. 219708) to F. Curiel-Ayala, and to Drs. Alfred P. Dufour, Kristen P. Brenner, and Clifford C. Rankin, of the U.S. Environmental Protection Agency’s (EPA) Human Exposure Research Division, National Exposure Research Laboratory, Cincinnati, Ohio, for instruction and training in the Method 1600 USEPA. We are also grateful to the State Laboratory for Public Health “Dr. Galo Soberón y Parra” in Acapulco, for putting their installations at our disposal for these studies.
PY - 2012/10
Y1 - 2012/10
N2 - Three microorganisms were assayed to evaluate the microbiological quality in the seawater at a resort on the Mexican Pacific coast, and to test for possible associations among the titers of the various bacteria, their possible correlations with environmental conditions, and with the location of potential wastewater outflows. Significant microorganism levels were found (at Caletilla beach, Hornos beach, and Papagayo beach, respectively: for Enterococcus 157, 153, and 149, for C. perfringens 35, 89, and 56, for S. aureus 244,137, and 279. CFU/100. ml), often in excess of the presently set guideline values. In general, bacterial titers were higher during rainy season than in dry season. For S. aureus, in both seasons, highest concentrations were found at 3. pm, the time of highest tourist presence at the beaches. Our results argue for the use of these three microorganisms as part of a set of indicators in the routine microbiological evaluation of Mexican beachwaters.
AB - Three microorganisms were assayed to evaluate the microbiological quality in the seawater at a resort on the Mexican Pacific coast, and to test for possible associations among the titers of the various bacteria, their possible correlations with environmental conditions, and with the location of potential wastewater outflows. Significant microorganism levels were found (at Caletilla beach, Hornos beach, and Papagayo beach, respectively: for Enterococcus 157, 153, and 149, for C. perfringens 35, 89, and 56, for S. aureus 244,137, and 279. CFU/100. ml), often in excess of the presently set guideline values. In general, bacterial titers were higher during rainy season than in dry season. For S. aureus, in both seasons, highest concentrations were found at 3. pm, the time of highest tourist presence at the beaches. Our results argue for the use of these three microorganisms as part of a set of indicators in the routine microbiological evaluation of Mexican beachwaters.
KW - Clostridium perfringens
KW - Enterococcus
KW - Mexican recreational waters
KW - Microorganisms in seawater
KW - Staphylococcus aureus
UR - http://www.scopus.com/inward/record.url?scp=84866770989&partnerID=8YFLogxK
U2 - 10.1016/j.marpolbul.2012.07.052
DO - 10.1016/j.marpolbul.2012.07.052
M3 - Artículo
SN - 0025-326X
VL - 64
SP - 2193
EP - 2198
JO - Marine Pollution Bulletin
JF - Marine Pollution Bulletin
IS - 10
ER -