Water quality monitoring in La Paz, Mexico

Red de Observadores Ciudadanos (ROC) (2023). Water quality monitoring in La Paz, Mexico. In dataMares: Ecosystem Dynamics. UC San Diego Library Digital Collections. https://doi.org/10.6075/J0ZW1M38

It is carried out systematically throughout the year at strategic points in the Bay of La Paz: recreational beaches and other sites of interest. Through a methodological process, the main beaches are sampled, identifying whether or not there is bacteriological contamination, considered a high risk to public health. The objective of this program is to protect the health of the users of the recreational beaches of the Bay of La Paz, identifying sources of contamination and informing the public if the beaches are suitable for swimming, fishing and/or having fun there.

Contact information: Santiago Dominguez-Sanchez, santiago@gocmarineprogram.org

• 2014 to 2022

• 2023

• Trinidad, Hector

• Red de Observadores Ciudadanos (ROC)

• Domínguez-Sánchez, Santiago

• Red de Observadores Ciudadanos

Most probable number chromogenic substrate method using Enterolert Idexx commercial reagent. The test method is based on the detection of enterococci, such as E. faecium, E. faecalis in drinking water, drinking fountains, recreational water (fresh and brackish), bottled water and ice. When the reagent is added to the sample and incubated at 41°C ± 0.5°C for 24h ± 2h, fluorescence is produced by enterococci metabolizing the nutrient indicator. This test allows the detection of up to 1 CFU/100mL of enterococci in the sample to be analyzed. The Enterolert test uses a proprietary defined substrate technology (DST) nutrient indicator to detect enterococci. This nutrient indicator fluoresces when metabolized by enterococci.

Software used: Microsoft Excel. Coordinate system: WGS 1984.

• Baja California Sur (Mexico)
• La Paz (Baja California Sur, Mexico)

• Beaches
• Enterococci
• Water quality

• data

• English
• Spanish; Castilian

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• UC Regents

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2023-06-08