Gōngchǎng fèishuǐ zàochéng le yánzhòng de tǔrǎng wūrǎn.
Factory wastewater caused serious soil pollution.
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Part of the standard triad with 空气污染 (air pollution) and 水污染 (water pollution). Major policy topic in Chinese environmental news since the 2014 soil survey revealed widespread heavy-metal contamination.