La mano de un terrorista en guantes de protección, vierte el líquido con el veneno para infectar la tubería de drenaje - Foto e imagen de stock

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 and mask in a large sewer pours reagent from a flask for wastewater treatment

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

Terrorist in a protective suit and gloves, pours liquid from a glass tube with poison, for infection, in reservoirs

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

The scientist, in a protective suit and gloves, takes the liquid from the river in test tubes, for a sample

The scientist, in a protective suit, mask and gloves, takes the liquid from the river in test tubes, for a sample

A scientist, in a protective suit, mask and gloves, takes a liquid from the river in test tubes, for a sample, against the background of a drainpipe

Scientist in a protective suit and mask, holding a set of test tubes with water samples treatment facilities, on the background of water, on the right there is a place for the inscription

Scientist in a protective suit and mask, on the background of the drain pipe, looking at the collected mold treatment facilities, to study the parameters of water in a Petri dish, in the light

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

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 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 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 in a large sewer took a sample of water for analysis

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

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 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