Sand and gravel extraction for cement production Thai Nguyen province Vietnam

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Photo credit: © Nature Vietnam / Alamy / Afripics
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Keywords: cement, contaminated, contamination, development, drainage, environemnt, environmental, extraction, freshwater, gravel, land, mineral, mining, nguyen, ph, pollute, pollutine, pollution, poverty, production, province, riparian, river, sand, stream, thai, vietnam, water, wealth