Tracking System

WS-10 - Implemented

Action ID WS-10

Action Develop toxics criteria for sediment in the SJBE

Schedule Long-Term

Status Implemented


Update July, 2017:A study about the presence and distribution of contaminants of emerging concern in San Juan Bay Estuary and their uptake in the Blue Crab, Callinectes Sapidus, was completed during 2013 in collaboration with the Puerto Rico Center for Environmental Neuroscience (PRCEN). The researcher Xochitl Perez found high levels of harmful contaminants like phtalates, which represents potential health risks. One of the phthalates with the highest concentration in C. sapidus tissues has been identified in sediment samples, of previous studies completed by other researchers. The study documented high risk contaminants in Canal Suarez and Laguna Piñones.

Update March, 2012: The SJBE just get in September 30, 2011 the results of a sediment and toxicity study conducted by Dr. Ernesto Otero of the UPR in Mayaguez. This is already done. In addition, the Institute of Neurobiology of the UPR, is also conducting surveys including sediment toxicity, continuosly.  The study by UPR-Mayaguez, including DDT, pesticides, PCBs. The study is at the office of SJBE Program.

Update January 2010:  Like the WS-9, in 2010 we expec to hire a consulting firm that will work the issue of toxicity of the sediments. 

The SJBEP will focus on this action as a long-term project to be implemented.

WS-10.1 Analyze historical information on sediment quality in the SJBE.
WS-10.2 Perform a general screening of sediment samples to identify contaminants in accordance with the national status and trends program and use impairments (sediment toxicity, fish advisories, etc.) Specific to San Juan Bay.
WS-10.3 Perform sediment toxicity and bioaccumulation tests, benthic community structure, microtox, and other assays/tests as necessary.
WS-10.4 Select parameters of interest which should include one or more of the following: the nature of the contaminant, the concentration of the contaminant, the frequency at which the contaminant is found, the biological availability of the contaminant,
WS-10.5 Develop sediment quality criteria for each of the parameters of interest.;

Date Created 03 Mar 2006

Last Update 31 July 2017