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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, side view against the background of the river
Scientist in a protective suit and mask, releases into the pond bio plants for reproduction from a Petri dish
The man checks the duration of the protection of the special suit in the conditions of pollution, putting it on
Scientist in a protective suit and mask, holding a set of test tubes with water samples treatment facilities, on the background of water, on the right there is a place for the inscription
A man in a protective suit holes in his hands a stand with test tubes in which reagents and test materials against the background of the river, top view
Scientist in a protective suit and mask, collects biomaterials from the water, for analysis, in a Petri dish
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
Laboratory assistant in a special protective suit in the open air measures the level of environmental pollution with the device
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
A man in a protective suit and mask took a soil sample from the bottom of the river into a Petri dish
Side view of a man in a protective suit and mask holding a test tube and a pipette with test water on the river after an outdoor accident
Laboratory assistant in a protective suit and mask performs an express analysis at the site of contamination of the reservoir
An environmental laboratory specialist in a protective suit and mask stands in the water and measures the level of pollution with the device
Environmental laboratory specialist in protective suit and mask in a gutter pours water into a flask to study the level of pollution, close-up
A man in special protective clothing and a mask draws water from a river into a flask after discharges into the river, checking the river for environmental friendliness
A man in a protective suit takes soil samples into a Petri dish from the sewage treatment plant
Close-up of a Petri dish with a sample of plants from a river into which a reagent for express research is poured from a test tube
An environmental laboratory specialist in a protective suit takes a sample of soil from the river bottom with tweezers for research, close-up
