Scientist or Biologist in a protective suit and protect mask collects sample of waste water from industrial for analyze, problem environment, Ecologist sampling water from the river with test tube

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• experiment
• chemist
• scientist
• chemistry
• science
• chemical
• pollution
• laboratory
• biology
• scientific
• chemical industry
• ppe
• environmental pollution
• river water
• nature water
• rio
• lake
• environment
• safety work
• eco
• environmental protection
• researcher
• equipment
• segurança
• toxic
• bacteria
• industry
• nature
• problem
• water
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