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common green bottle fly, Lucilia sericata on grilled meat, annoying flies in summer during the BBQ, food contamination hygiene concept.
a scientist uses a microscope to look for contaminants in a test sample, a researcher uses a microscope to look closely at foreign objects, microscopes are being used in the laboratory
Sources of water pollution as freshwater contamination causes. Labeled educational nature ecosystem waste and clean groundwater ruining with industrial agriculture and cities vector illustration.
set of air pollution icons, such as smog, dust, smoke, emission
set of air pollution icons, such as, smoke, dust, gas, industry, pm 2.5

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