30/07/2025
Watch out for the doggy that like a swim/drink in the river Medway 👇
⚠️ Caution: Blue-Green Algae in River Medway⚠️
The Environment Agency has confirmed that there is a significant amount of blue-green algae in the River Medway at Tonbridge. Please steer clear of the water to avoid illness.
It might be tempting to go for a paddle but skin contact or swallowing the water can cause nasty symptoms in both humans and dogs.
Signs are up on the riverbank with more information but if you're by the river please take care. Blue-green algae occurs naturally and isn't always toxic, but during dry spells it can grow rapidly and become harmful.
It can appear as green or blue scum, green-tinged water, an oily slick on the surface or paint-like streaks.
🚫Avoid contact with the water
🚫Do not paddle or swim
🚫Do not let dogs drink or enter the water
Even a splash can cause unpleasant symptoms. In humans it can lead to:
👉 Skin rashes
👉 Eye, nose or throat irritation
👉 Stomach pain, vomiting, diarrhoea
👉 Headaches or dizziness
In pets it can be very serious. If your dog has been in the water look for the following:
👉 Vomiting
👉 Lethargy
👉 Seizures
👉 Drooling or breathing difficulty
👉 Staggering or sudden collapse
If symptoms appear, contact a doctor or vet immediately.
The blooms can take a while to clear. We are working closely with the Environment Agency and will continue to monitor the water.
📢 Updates and information will be shared locally and on social media.
