Un hombre en un traje de protección y máscara realiza una prueba expresa de contaminación del agua de un río - Foto e imágenes de stock

A man in a protective suit and mask holds a flask of green liquid in his hands and shows his thumb up on the background of sewage pipes coming out from the factory

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

A man in a protective suit and mask, against the drainpipes, holding a tube of green liquid

A man in a protective suit and mask holds in his hands a flask with green liquid on the background of sewage pipes coming out from the factory

A laboratory specialist in protective clothing and a mask holds a flask with a green reagent in his hands and does a test for the presence of harmful impurities in a pond

A man in a protective suit, adjusts the mask on the background of drainpipes, looking forward, holding a tube of liquid

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, on the background of drainpipes, holding a tube of liquid, on the left there is a place for the inscription

A man in a protective suit and mask in a large sewer pours reagent from a flask for wastewater treatment

A man in a protective suit and mask holds in his hands a flask with a blue liquid on the background of a large sewage pipe

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

Scientist in a protective suit, collects a sample of water in a flask with a blue liquid, close-up, there is a place for the inscription

Specialist in a gray protective suit and mask, on the pond, takes a sample of liquid in tubes, close-up, there is a place for the inscription

An environmental laboratory specialist in a protective suit and a mask in a gutter pours a reagent from a flask into water to study the level of pollution

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

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

Scientist researcher in protective suit records environmental research after an emergency

A specialist in a protective suit and mask, on the pond with a suitcase, tablet and mobile phone in his hands, conducts research