Two biologist in biohazard suits and masks discuss results of test of water from red dirty river
Two biologist in biohazard suits and masks sampling water from a stream or river pipetting a sample into a test tube for chemical analysis of pollutants
Two biologist in biohazard suits and masks sampling water from a stream or river pipetting a sample into a test tube for chemical analysis of pollutants
Two scientists in full biohazard suits and masks taking water samples from a river to check for hazardous pollutants or contaminants. River is red and dirty
Two men in biohazard suits and masks sampling water from a stream or river pipetting a sample into a test tube for chemical analysis of pollutants
Three men in biohazard suits and masks standing on a bridge over a stream preparing to sample the water for contaminants
Three bio technicians testing for pollutants in a river in woodland wearing full hazard suits and masks as they take water samples
Three bio technicians testing for pollutants in a river in woodland wearing full hazard suits and masks as they take water samples
Three bio technicians testing for pollutants in a river in woodland wearing full hazard suits and masks as they take water samples
Portrait of worried black male biologist in protective suit, mask and gloves testing quality of mountain river water, analyzing water sample into test tube during research in contaminated environment.
Anonymous male biologist in white protective suit posing with silver toolbox in hands on background of nature, red dirty river
Professional black male scientist biologist in protective workwear analyzing biohazard danger and controlling environmental contamination, sampling polluted mountain river water into test tube.