Una reacción positiva a los resultados de la prueba, un hombre con ropa protectora, muestra una buena mano en un guante azul, contra las tuberías de drenaje, primer plano - Foto e imagen de stock

The workers hands in white gloves, carry a cart, on the repair section of the road

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 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 holds in his hands a flask with green liquid on the background of sewage pipes coming out from the factory

A specialist in a protective suit, is measuring the device, holding it in his hands, against the background of cleaning pipes

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 looks away holding a flask with express test

A man in a protective suit takes soil samples into a Petri dish from the sewage treatment plant

A man in a protective suit and a respirator against bacteria and viruses sits by the river next to a mobile laboratory for research

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

Environmental laboratory specialist in protective suit and mask talking on the phone and pointing at emergency site

Laboratory assistant in a protective suit and mask with a tablet in his hands reports by phone about the results of a check at a natural site

Man in protective suit and mask crawls out of the sewer after research, front view

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

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

A man in a protective suit and a respirator in goggles holds in his hands test tubes with reagents and test samples in the open air in an unfavorable area on the river

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