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Biohazard, protection and people with disinfection in hospital for contamination, safety and protocol. Medical, red tape and work with PPE in ward for healthcare, sanitation and infection control
Scientist check chemical food residues in laboratory. Control experts inspect quality of fruits, vegetables. lab, hazards, ROHs, find prohibited substances, contaminate, Microscope, Microbiologist
Environmental researchers investigate the condition of canal water for toxic spills, river waste water sampling, Asian researchers collect water samples in farmland for research and development.
Waste water sewage from a pipe into the river. Water pollution, environment contamination concept
Contaminated water sits on the ground where green grass grows in an abandoned area. Trash can be seen nearby, marking the pollution site during daylight.

Free stock photoscontamination (3)

3D guy throwing paper in the bin - isolated over a white backgroundImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/3d-guy-throwing-paper-bin-isolated-102816203">Image used under license from Freestock.com</a>
Man wearing a gas mask on his face - isolated over a white backgroundImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/man-wearing-gas-mask-face-isolated-102220252">Image used under license from Freestock.com</a>
hands of an eldery woman holding an earth globe - globe is from http://www.nasa.govImage used under license from Freestock.com<a href="https://www.freestock.com/free-photos/hands-eldery-woman-holding-earth-globe-2024680">Image used under license from Freestock.com</a>

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