Ecologist Sampling Water of Toxic Chemicals From the River Checking List and Write to Clipboard

A scientist in a white hazmat suit, blue gloves and shoe covers, and a hard hat squats near a drain with water rushing out. He holds a clipboard and pen, writing notes as he examines a glass flask filled with water. He looks closely at the flask, then adds more notes to his clipboard. A yellow biohazard sign stands nearby. The scene could be used to illustrate themes of environmental science, pollution control, or industrial safety.