Mãos em um terno protetor e luvas de borracha azul tomar uma amostra de algas perto do rio com pinças para exame em laboratório - Banco de fotos e imagens

Close-up of the hands of the scientist in protective gloves, collect materials with tweezers from the water in a Petri dish, for the sample

Hands of a man in protective gloves took a sample of a plant from water into a Petri dish for laboratory research

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

Hands of a laboratory assistant in rubber gloves take a soil sample on the river

Scientist in yellow protective vest, uniform and gloves, collects materials from water, tweezers Petri dish

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 in the hands of a researcher

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 takes soil samples into a Petri dish from treatment facilities, close-up

Environmental laboratory specialist in a protective suit holds a lid and a glass container in which lies a sample of soil for research, close-up

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

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

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

In the hands of plant samples from the river and its surroundings by a man in a special suit, side view

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 lids a glass container with a soil sample for research