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leaching

The removal of soluble material from a substance, such as soil or rock, through the percolation of water. Organic matter is typically removed from a soil horizon and soluble metals or salts from a rock by leaching. Leaching differs from eluviation in that it affects soluble, not suspended, material and often results in the complete removal of the material from the soil or rock.

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Example Sentences

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"And the rusting metal in there is starting to leach. The iron and nickel and copper is leaching out over the rocks and it looks unsightly."

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Fitzgerald said the EPA has installed liners to prevent toxic materials from leaching into the soil.

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The EPA has not responded to the complaints, but agency officials said its crews have installed liners to prevent toxic chemicals from leaching into soil.

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The most alarmist was probably an offering from The Atlantic, which was headlined: “Throw Out Your Black Plastic Spatula/It’s probably leaching chemicals into your cooking oil.”

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Toxic chemicals and heavy metals have been detected that could be leaching into the sediment — something local officials are not equipped to clean up on their own.

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leachate leachy

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