Επιστήμονας ή βιολόγος φορούν προστατευτικές στολές εξετάζοντας το υγρό περιεχόμενο του ένα δοκιμαστικό σωλήνα. Οικολογία και ρύπανση του περιβάλλοντος έννοια. - Φωτογραφίες & Εικόνες Αρχείου

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

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

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

Ecologist with bulb in hand on river bank in summer

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

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

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

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

Woman collects water in a test tube. Ecology and environmental pollution concept.

Scientist dosimetrist (radiation supervisor) in protective clothing and gas mask with geiger counter checks the level of radioactive radiation in the danger zone

Biologist working on water analysis. Ecology and environmental pollution concept.

Closeup of a female scientist examining the liquid contents of flask in the forest. Ecology and environmental pollution concept.

Scientist dosimetrist (radiation supervisor) in protective clothing and gas mask with geiger counter checks the level of radioactive radiation in the danger zone

Hand in glove collects water in a test tube.

Scientist dosimetrist (radiation supervisor) in protective clothing and gas mask with geiger counter checks the level of radioactive radiation in the danger zone

Hand in glove collects water in a test tube.