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Quality control officer with inspection kit
Scientists collected water samples from drains for testing.
A scientist wearing a white protective suit collects and examines water samples
Coastal scientists with test tubes to test for contaminants
walks along a shoreline collecting water samples for analysisA person in a white protective suit
Water samples from drains in industrial areas
Coastal water quality inspectors
A scientist collects and examines water samples in test tubes near a factory drainage outlet
A scientist collects and examines water samples in test tubes near a factory drainage outlet
