Mies, jolla on suojapuvussa reikiä käsissään koeputkiteline, jossa reagenssit ja testimateriaalit joen pohjalla, ylhäältä katsottuna - Kuvapankin valokuva ja kuva

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

Scientist in a protective suit and mask, collects biomaterials from the water, for analysis, in a Petri dish

Scientist in a protective suit and mask, releases into the pond bio plants for reproduction from 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

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

An environmental laboratory specialist in a protective suit takes a sample of soil from the river bottom with tweezers for research, close-up

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 conducts an express test of contaminated water to identify the level of danger to the environmental environment and living organisms

A man in a protective suit takes soil samples into a Petri dish from treatment facilities, close-up

A man in a protective suit and mask performs an express test for water pollution from a river

A man in a protective suit holds a test tube in his hands with a green reagent for conducting water analysis against the background of the river

Close-up of a petri dish with a sample of soil for research in the hands of a laboratory worker, against the backdrop of the environment

A man in a protective suit and mask took a soil sample from the bottom of the river into a Petri dish

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

An environmental laboratory specialist in a protective suit and mask stands in the water and measures the level of pollution with the device

Hand of a laboratory assistant in a rubber glove holds a test tube with water taken for analysis

A man in a protective suit holds a petri dish with a sample for research and took off his glasses to look forward