EPA Region 2 on Instagram: "🌎 What is Ponar grab sampling? 💧 It's a type of grab sampler used in water to collect sediment samples, particularly from water bodies with a hard bottom such as sand, gravel, and clay. It's a heavy-duty device designed to retrieve a sample of surface sediment in shallow areas – like lakes, rivers and estuaries. 👉 It scoops surface sediment like a clamshell. A catch bar holds the jaws open until triggered by contact with the bottom. 🎥 Watch the Ponar Grab Sampling
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