Why are Port Dickson mussels still unsafe for consumption?

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Port Dickson Mussels Remain Unsafe Due to Persistent High Biotoxin Levels

Mussels harvested from the waters of Port Dickson, Negeri Sembilan, continue to be deemed unsafe for consumption due to the persistent presence of high levels of biotoxins. While recent sampling indicates a decline in these levels, they have not yet reached the established safety threshold. The ban remains in effect to safeguard public health.
Biotoxin Levels Approaching, But Not Yet Within, Safety Standards

The latest sampling results from Port Dickson waters show biotoxin readings between 900 to 1,000 parts per billion (ppb) in some areas. This is a significant decrease from the initial readings of 20,000 to 30,000 ppb when the issue first arose. However, these figures still exceed the standard safe limit of 800 ppb for biotoxin content in mussels.
Continued Monitoring and Sampling Underway

The Fisheries Department is maintaining a rigorous monitoring schedule, conducting water and mussel sampling in the affected area every two weeks. This ongoing surveillance will continue until the biotoxin levels consistently return to normal and the mussels are confirmed to be safe for consumption. This proactive approach ensures that any fluctuations are detected and addressed promptly.
Contamination Linked to Harmful Algae Blooms

The presence of harmful algae species has been identified as the cause of the mussel contamination. Specifically, the detection of species such as Prorocentrum, Alexandrium, and Pseudo-nitzschia in the waters has led to the accumulation of biotoxins in the shellfish. These microscopic organisms are known to produce toxins that can be harmful to humans when ingested.

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Why are Port Dickson mussels still unsafe for consumption?

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