Ένας άντρας με προστατευτική στολή παίρνει δείγματα χώματος σε ένα τρυβλίο Petri από εγκαταστάσεις επεξεργασίας, κοντινό πλάνο - Φωτογραφίες & Εικόνες Αρχείου

The scientist, in a protective suit and mask, took a plant with tweezers, for a sample and puts it in a Petri dish, close-up

Scientist in a protective suit and mask, collects materials from the pond in a Petri dish

A man in a protective suit holds a Petri dish with a sample for plants and looks at the reaction in it after adding the reagent, top view

Laboratory worker takes samples from the bottom of the lake

A man crouched in a protective suit to take a sample of a plant from water into a Petri dish for laboratory research

A scientist in a protective suit and blue gloves, conducts a study on the ground, pours blue liquid from a test tube into a flask

Close-up, the hands of a scientist in protective gloves, holding a Petri dish with a green plant from the water, for analysis in the laboratory, close-up, there is a place for the inscription

Woman with flask for expertise. Environmental pollution concept

Scientist in a protective suit, collects a sample of water in a flask with a blue liquid, close-up, there is a place for the inscription

A specialist in a gray protective suit and mask, on the pond, holding in his hand test tubes and a flask with a blue liquid, against the background of treatment pipes

The man checks the duration of the protection of the special suit in the conditions of pollution, putting it on

Environmental protection company employee makes measurements of river water purity

Scientist in a protective suit and gloves, collects water from the river into test tubes, for testing, there is a place for inscription

Scientist, in a protective suit and mask, collects water from the river for testing, in test tubes

Scientist in yellow protective vest and mask, uniform and gloves, closes the Petri dish, after collecting materials, close-up

Specialist in a protective suit and mask, is measuring the device on the pond, holding it in his hands, close-up