Assessment of local and regional strategies to control bacteria levels at beaches with consideration of impacts from climate change

MARINE POLLUTION BULLETIN

卷:138

Article

Barreras, Henry, Jr.^1,2  Kelly, Elizabeth A.^3,4,5  Kumar, Naresh²  Solo-Gabriele, Helena M.^3,4,5 

[1] Univ Miami, Miller Sch Med, Dept Microbiol & Immunol, Miami, FL 33136 USA

[2] Univ Miami, Div Environm & Publ Hlth, Dept Publ Hlth Sci, Miami, FL USA

[3] Univ Miami, Leonard & Jayne Abess Ctr Ecosyst Sci & Policy, Coral Gables, FL 33146 USA

[4] Univ Miami, NSF NIEHS Oceans & Human Hlth Ctr, Rosenstiel Sch Marine & Atmospher Sci, Key Biscayne, FL USA

[5] Univ Miami, Coll Engn, Dept Civil Architectural & Environm Engn, Coral Gables, FL 33146 USA

关键词: Fecal indicator bacteria;    Infrastructure;    Beach;    Temperature;    Climate change;   

DOI  :  10.1016/j.marpolbul.2018.10.046

来源: Elsevier

【 摘 要 】

The objective of this study was to evaluate relationships between local factors (beach geomorphology and management) and regional factors (infrastructure improvements and temperature changes) against levels of fecal indicator bacteria (FIB) at recreational beaches. Data were evaluated for 17 beaches located in Monroe County, Florida (Florida Keys), USA, including an assessment of sanitary infrastructure improvements using equivalent dwelling unit (EDU) connections. Results show that elevated FIB levels were associated with beach geomorphologies characterized by impeded flow and by beaches with lax management policies. The decrease in EDUs not connected coincided with a decrease in the fraction of days when bacteria levels were out of compliance. Multivariate factor analysis also identified beach management practices (presence of homeless and concession stands) as being associated with elevated FIB. Overall, results suggest that communities can utilize beach management strategies and infrastructure improvements to overcome the negative water quality impacts anticipated with climate change.

【 授权许可】

Free