The status assigned to a production area is based on the last sample supplied. If the production area has not been sampled at the biotoxin sampling frequency for that time of year for that species it will be deemed closed on the expiry of that period. This closed status will supersede the status given on the last report from that area. Two samples taken at least 48 hours apart are required to re-open an area that has been closed.

For the most up to date sample frequency click on the link below for the Phytoplankton & Shellfish Toxicity Summary or contact the Marine Institute.

Please read the full disclaimer available in the links at the bottom of the page.
DSP/AZP/PSP data available from the beginning of 2002,
Phytoplankton and ASP data available from November 2002
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In this section:

Disclaimer and Copyright Information
Phytoplankton & Shellfish Toxicity Summary - updated November 14th 2014
9th Irish Shellfish Safety Scientific Workshop
Shellfish Harvesting Notification Login
The Biotoxin and Phytoplankton Production Maps