water quality testing river
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Stockphotos.ro (c) 2025. All stock photos are provided by Dreamstime and are copyrighted by their respective owners.
water quality testing river |
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| navigate by keyword : analysis arm chart citizen clothing color conservation drink ecology ecosystem environmental field finger flower food freshwater green hand hands lab leaf leg limb man monitoring nature nitrate outdoor person pollution produce quality reflection river sample science skin study sustainability test testing water yellow |
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| Hands holding a test vial and color chart to analyze river water quality, showing a real-time nitrate or pH test against a natural, outdoor backdrop. |
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Stockphotos.ro (c) 2025. All stock photos are provided by Dreamstime and are copyrighted by their respective owners. |
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