As part of the Shellfish Development Program, the Bureau of Fisheries and Aquatic Resources 4A (BFAR 4A) conducts assessment and regular monitoring to assure that oysters are safe for human consumption and have an acceptable level of toxins and microbiological contaminants.

The recent assessment on September 3, 2020, showed acceptable levels of E. coli bacteria and below regulatory limits of harmful algal toxins on the assessment of Oyster growing areas in Pagbilao and Padre Burgos, Quezon, last September 18, 2020, as reported by the BFAR 4A – Regional Fisheries Laboratory (RFL).

The complete microbiological analysis on the water samples taken from the shellfish growing areas was conducted by the BFAR-RFL and the analysis of harmful algal toxins specifically, the Paralytic Shellfish Toxins was conducted by the National Fisheries Laboratory Division (NFLD). Other activities including shoreline surveys and interviews with the oyster farmers were performed.