Scienziati di sesso femminile e maschile in maschere protettive e tute che lavorano con tablet digitale e guardando la fotocamera all'aperto - Foto e immagini stock

Male scientist in protective suit and mask writing in clipboard and pointing while his female colleague examining sample of water in test flask outdoors

Two scientists in protective masks and suits examining fish and writing in clipboard near river

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

Female and male scientists in protective masks and suits working with digital tablet outdoors

Male scientist in protective mask and suit holding fish by tweezers while his colleague examining it by magnifier near river

Selective focus of male scientist in protective mask and suit writing in clipboard near water outdoors

Female scientist in protective mask and suit writing in clipboard while her colleague putting sample of water

Cropped image of male scientist in protective suit and mask putting sample of soil by tweezers in test flask outdoors

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

Low angle view of pest control worker standing with sprayer

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

Pest control worker spraying pesticides on street with sprayer

Pest control worker spraying pesticides on bush

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

Pest control worker standing in respirator in bathroom and looking at camera

Cropped image of pest control worker spraying pesticides with sprayer on building wall