Um homem de fato de proteção e luvas tira água de um riacho usando uma pipeta e um frasco, close-up - Banco de fotos e imagens

Lab worker in protective suit takes water from a river for further analysis

Hand in glove collects water in a test tube.

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 stands in a river and pours water from a test tube into it with a reagent to analyze the level of pollution

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 specialist in a protective suit and rubber boots draws water from a river into various test tubes using a pipette for analysis of environmental pollution

Hand in protective clothing and a rubber glove draws water into a flask from a river for chemical analysis

Terrorist in a protective suit and gloves, pours liquid from a glass tube with poison, for infection, in reservoirs

Laboratory worker takes samples from the bottom of the lake

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 and mask holds a test tube and a pipette with test water on the river after an accident

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

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 plants from a pond for research in the hands of a laboratory worker, top view

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

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

Environmental biologist in a protective suit and mask examines water from the river for viruses