A man in protective clothing, looking at a tube of blue liquid, against the drainpipes - Stock Photo & Image

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 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

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

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

Laboratory worker in a protective suit came to the sewage and adds reagents for water treatment

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

A man in a protective suit takes a sample of water from the river after the release of chemical waste

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 and mask keeps records in a report on the situation at the scene of an environmental accident

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

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

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 mask in a large sewer took a sample of water for analysis