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northern pintail bird on water

pintail ducs in water hunting anas acuta

pintail duck swimming in water close up image anas acuta

l pneumophila bacteria existing on potable water biofilms

humans become infected by swallowing water contaminated by infected animals or through skin contact

ralstonia spp are gram negative bacteria found in the environment primarily in water soil and on plants occasionally

field technician who was in the process of using a dipper while analyzing the high water region

entomologic field technician who was in the process of using a dipper while analyzing the water

entomologic field technician who had extracted a dipper full of water that was teaming

entomologic field technician using a suction pipette in order to trap mosquito larvae in a water sample

drainage canal was constructed in order to provide a permanent waterway promoting the free flow of water

digitally colorized scanning electron micrograph sem of an untreated water specimen

workers practicing vector control by digging a drainage ditch in order to help disperse standing water

administering a vaccine to a woman who was obtaining water from a local well
