Twee wetenschappers in beschermende kostuums en maskers vis te onderzoeken en te schrijven in klembord buitenshuis - Stockfoto’s en -afbeeldingen

Scientists in protective masks and suits examining fish and writing in clipboard outdoors

Scientists in protective masks and suits examining fish and writing in clipboard against cloudy sky

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

Male scientist in protective mask and suit holding fish by tweezers while his female colleague writing in clipboard outdoors

Selective focus of scientists in protective masks and suits examining fish and writing in clipboard outdoors

Chemist looks at flask with water sitting on river bank

Closeup of a female scientist examining the liquid contents of a conical flask in the forest. Ecology and environmental pollution concept.

Chemist with bulb and raised finger sits on river bank

Portrait of pest control worker in respirator looking at camera

Portrait of pest control worker in respirator looking at camera

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

Cropped image of pest control worker holding sprayer

Portrait of pest control worker standing in respirator and holding sprayer in kitchen

Pest control worker spraying pesticides on street with sprayer

Pest control worker standing in respirator in bathroom with sprayer

Pest control worker spraying pesticides on metal shelves in kitchen