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technician use the Professional Water Testing equipment to measure the water quality at the public canal. Portable multi parameter water quality measurement ,water quality monitoring concept
Scientist workers wear protection suit checking chemical contaminated oil in old factory. Red and White Lines Marking a Dangerous Zone. Biohazard Contamination Control.
Bacterial Cultures in Petri Dishes in microbiology laboratory. Test various germs, virus, Coronavirus, Corona, COVID-19, Food science.
Contaminated site of former chemical factory
Test-tube with soil sample.Sampling for chemical analysis and ph test. Assessment soil contamination with toxic substances. Selection fertilizers

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