Selektiver Fokus einer Wissenschaftlerin in Schutzmaske und Anzug, die in Klemmbrett schreibt, während ihr Kollege Wasserproben in Flussnähe im Freien abgibt - Stockfoto & -bild

Male scientist in protective mask and suit opening working suitcase while his female colleague writing in clipboard

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

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

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

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

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

Serious male scientist in protective mask and suit writing in clipboard near water outdoors

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

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

Low angle view of pest control worker standing with sprayer

Pest control worker spraying pesticides on bush

Pest control worker standing in respirator in bathroom with sprayer

Pest control worker spraying pesticides on street with sprayer

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

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

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