Wissenschaftlerin arbeitet mit Laptop, während ihr Kollege Arbeitskoffer in Flussnähe öffnet - Stockfoto & -bild

Male scientist in protective suit pointing on laptop screen to female colleague near river outdoors

Selective focus of water inspector in protective costume and inspection kit on foreground

Male scientist in protective suit and mask pointing at water to female colleague with laptop outdoors

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

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

Male scientist in protective suit holding sample of soil by tweezers and water in test flask outdoors

Pest control worker spraying pesticides on bush

Pest control worker in respirator spraying pesticides with sprayer on building wall

Low angle view of pest control worker standing with sprayer

Pest control worker in uniform and respirator spraying pesticides on street with sprayer

Pest control worker in uniform spraying chemicals on bush

Cropped image of male scientist in latex gloves putting dry leaf by tweezers in test flask outdoors

Pest control worker spraying pesticides on street with sprayer

Pest control worker spraying pesticides on street