Un especialista en un traje de protección y botas de goma extrae agua de un río en varios tubos de ensayo utilizando una pipeta para el análisis de la contaminación ambiental - Foto e imagen de stock

A man in a protective suit and gloves draws water from a stream using a pipette and a flask, close-up

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

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

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

Scientist in a protective suit and gloves, collects water from the river into test tubes, for testing, there is a place for inscription

Laboratory assistant in a protective suit and mask performs an express analysis at the site of contamination of the reservoir

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

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

Environmental laboratory specialist in protective suit and mask in a gutter pours water into a flask to study the level of pollution, close-up

Laboratory assistant in a protective suit and mask with a tablet in his hands writes down the results of his work

Hand in a blue rubber glove pours water from a river into a transparent flask for analysis in a laboratory

A man in a protective suit and mask looks away holding a flask with express test

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