GEOFF TOMPKINSON / SCIENCE PHOTO LIBRARY GEOFF TOMPKINSON / SCIENCE PHOTO LIBRARY
Water pollution monitoring. Male technician studying bacteria in a water sample. The magnified view of the sample is displayed on the monitor at lower right. This gives information on the levels of specific bacteria in the water. Bacteria levels in water need to be monitored as some species can be harmful to human health. The technician is using a binocular microscope as the two eyepieces allow a better view of the subject.
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