Científico masculino en máscara protectora y traje sentado con la maleta de trabajo cerca de alcantarillado - Foto e imagen de stock

Male scientist in protective mask and suit writing in clipboard while sitting near sewerage

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

Two scientists in protective suits and masks working with laptop near sewerage

Ecologist sampling water toxic chemicals from river with test tube glass and have white smoke, Biologist wear protective suit and mask collects sample waste water from industrial, problem environment

Selective focus of male scientist in protective mask and suit writing in clipboard while sitting near sewerage

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

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

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

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

Pest control worker spraying pesticides on street with sprayer

Selective focus of female scientist in protective suit and googles holding clipboard in meadow

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

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

Female scientist in protective suit and googles holding clipboard in meadow

Pest control worker spraying pesticides on bush