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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
Environmental engineers inspect water quality,Bring water to the lab for testing,Check the mineral content in water and soil,Check for contaminants in water sources.
Coronavirus Infographic Template showing Prevention, symptoms, Facts, Cases statistic, and Incubation with icon and a cough or flu employee
City air pollution
pH meter in hands with gloves, glass of water on a blue background. Measurement of the characteristics of drinking water. The hardness of the water. poor water quality. high values of salt impurities

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