Egy tudós védőöltözetben, maszkban és kesztyűben mintát vesz a folyóból kémcsövekben, a vízelvezető cső hátteréhez - Stock fotó és kép

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

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 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

Worker in a suit with protection from polluted environment measures radiation with a special device

Scientist in a protective suit and mask, collects mold treatment facilities to study the parameters of water in a Petri dish

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

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

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 and mask holds a test tube and a pipette with test water on the river after an accident

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

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

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

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

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

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 performs an express test for water pollution from a river