Tudós, vagy biológus egy kémcsőbe folyékony tartalmának vizsgálata védő egyenruha viselése. Ökológia és a környezetszennyezés fogalma. - Stock fotó és kép

Ecologysts wearing protective uniforms examining the liquid contents of a test tube. Ecology and environmental pollution concept.

Ecologysts wearing protective uniforms examining the liquid contents of a test tube. Ecology and environmental pollution concept.

Biologist wear protective suit and mask collects sample of waste water from industry, problem environment, Ecologist sample taken dead fish to inspection and save data to laptop computer, Toxic water

Biologist wear protective suit and mask collects sample of waste water from industry, problem environment, Ecologist sample taken dead fish to inspection and save data to laptop computer, Toxic water

Ecologist with bulb and folder on river bank, blurred background

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

Water inspector in protective costume and respirator taking water samples at river

Scientists or biologists wearing protective uniforms working together on water analysis. Ecology and environmental pollution concept.

Hand in glove collects water in a test tube.

Female scientist examining the liquid contents of a test tube in the forest. Ecology and environmental pollution concept.

Hand in glove collects water in a test tube.

Criminological expert collecting evidence at the crime scene. Law and police concept

Female scientist examining the liquid contents of a test tube in the forest. Ecology and environmental pollution concept.

Criminological expert collecting evidence at the crime scene. Law and police concept

Criminological expert collecting evidence at the crime scene. Law and police concept

Female scientist examining the liquid contents of a test tube in the forest. Ecology and environmental pollution concept.