Tudósa és maszkja, a tóból egy Petri-csészében gyűjt anyagokat - Stock fotó és kép

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