Δύο επιστήμονες σε προστατευτικές στολές και μάσκες που εργάζονται με φορητό υπολογιστή κοντά στο αποχετευτικό - Φωτογραφίες & Εικόνες Αρχείου

Female scientist pointing on water of sewerage to male colleague with laptop

Male scientist in protective mask and suit looking at sample of water in test flask outdoors

Male scientist putting sample of water in test flask while his female colleague writing in clipboard near sewerage

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

Male scientist in protective mask and suit sitting with working suitcase near sewerage

Male scientist in protective suit and mask holding fish by tweezers near river

Scientist wearing protective uniform and glove under working water analysis and water quality by get waste water to check case in laboratory is environment pollution problem concept

Selective focus of female scientist in protective mask and suit writing in clipboard while her colleague putting sample of water near river outdoors

Cropped image of male scientist in latex gloves taking sample of stone by tweezers outdoors

Pest control worker spraying pesticides with sprayer on building wall on street

Pest control worker spraying pesticides on bush

Low angle view of pest control worker standing with sprayer

Pest control worker spraying pesticides on street with sprayer

Cropped image of male scientist in protective suit walking with working suitcase in meadow

Pest control worker in respirator holding sprayer

Pest control worker in uniform spraying chemicals on bush