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Citizen Science

River Litter Detectives – Broomhouse Dock

Book your place here Come along and join Thames21 as a river citizen scientist on the River Thames. We will collect the litter we find…

River Litter Detectives – Bishop’s Park

BOOK YOUR PLACE NOW Come along and join Thames21 as a river citizen scientist on the River Thames. We will collect the litter we find…

Sands End River Clean Up & Litter Detectives

Come along and join Thames21 as a river citizen scientist on the River Thames. We will be collecting the litter we find and categorising it…

River Litter Detectives – Limekiln Dock

Book your FREE place here! Come along and join Thames21 as a river citizen scientist on the River Thames. We will collect the litter we…

Volunteers standing on the foreshore.

River Litter Detectives – Queenhithe

Book your place HERE! Come along and join Thames21 as a river citizen scientist on the River Thames. We will be collecting the litter we…

The Health of Our Rivers: Evidence from the Ock, Thames, and Tributaries

Join us for a community gathering to share and discuss the results of nine months of citizen science water quality testing across the Ock catchment…

Totally Thames: River Litter Detectives – Queenhithe

Book your place HERE! Come along and join Thames21 as a river citizen scientist on the River Thames. We will collect the litter we find…

Totally Thames: River Litter Detectives – Sands End

Book your place here! Come along and join Thames21 as a river citizen scientist on the River Thames. We will collect the litter we find…

Totally Thames: River Litter Detectives – Poplar Rowing Club

Please book your FREE place here! Come along and join Thames21 as a river citizen scientist on the River Thames. We will collect the litter…

Totally Thames: River Litter Detectives – Limekiln Dock

Book your FREE place here! Come along and join Thames21 as a river citizen scientist on the River Thames. We will collect the litter we…

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  • Hand wearing a blue glove holds a water sample positioned between two Hanna checkers in a nature background
    Water quality data collected by volunteers used to fix sewage pollution
    In 2024, volunteers from the River Ching Action Group discovered a massive spike in the concentration of ammonia during their regular water quality testing. They passed the data on to the Environment Agency and Thames Water, and...
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    Thames21
    THAMES21

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    Registered Charity number: 1103997

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