Laboratory assistant with test tube in hand on river bank - Stock Photo & Image

Photography of environmentalist for examination takes water in reservoir

Ecologist with test-tube and mask, protective suit, finger down, sits on river bank

Photo of chemist takes water for examination in pond

Laboratory assistant in respirator and blue gloves with test tube in hands takes sample of water near lake shore

Chemist on river bank with test tube and water in hands

Young biologist in protective suit takes water samples in river

Photo biologist takes water for examination in pond

Biologist with test tube in mask, protective suit, finger down, sits on river bank

Biologist with bulb in hand on river bank in summer

Laboratory assistant with test tube, thumb up, blurred background

Biologist with test tube in hand on river bank

Lab assistant with test tube takes water samples on river bank

Ecologist with bulb and raised finger up in nature

Lab assistant with test tube, finger down, blurred background

Ecologist with bulb and folder on river bank, blurred background

Chemist in respirator with test-tube, thumb up, on blurred background

Ecologist in safety glasses and respirator holds flask with water in hands on street