man measures the water quality of a natural spring with tester

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Size: 5000px × 3333px
Location: italy
Photo credit: © galina ermolaeva / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: appliance, background, black, chemical, closeup, composition, control, devices, ecologist, equipment, hand, holding, laboratory, lifestyle, male, man, measuring, mobile, natural, nature, outdoor, outdoors, people, person, pollution, professional, quality, science, scientist, smart, spring, technology, test, tester, tool, water, young