Ein Mann in Schutzanzug und Maske gegen die Abflussrohre, in der Hand ein Rohr mit grüner Flüssigkeit - Stockfoto & -bild

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

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 protective clothing, looking at a tube of blue liquid, against the drainpipes

A man in a protective suit and mask performs an express test for water pollution from a river

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

Specialist in a protective suit reports by phone on the results of an environmental study, rear view

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

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

Environmental specialist in a protective suit and mask took a sample of wastewater water to study the level of pollution

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 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 conducts an express test of contaminated water to identify the level of danger to the environmental environment and living organisms

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 a respirator against bacteria and viruses sits by the river next to a mobile laboratory for research

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

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