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Use "leaching" in a sentence
"a combined dump and underground leaching operation at Cerro de Pasco in Peru and an optimised heap leaching operation at Cananea in Mexico."
"In the case of heavy rainfall or flooding, there may be an increase in leaching of toxic chemicals and heavy metals from storage sites and increased contamination of water with runoff containing persistent chemicals that are already in the environment."
"Our results demonstrate a widespread contamination of mineral water with xenoestrogens that partly originates from compounds leaching from the plastic packaging material ...."