leach

Without the constant pressure of gravity on the skeletal system, calcium from bones leaches into the body, which besides weakening the bones themselves can lead astronauts to be at higher risk of developing kidney stones.

Lui said studies have shown that toxic chemicals can leach out of children’s toys and into their saliva if they put the products in their mouth.

There’s still more work to be done to learn the extent to which retardants leach into waterways and how much they contribute to these elevated metal levels, West said.

Over time, as these pipes have corroded, they have leached lead — a chemical with no safe level of exposure — into tap water.

All along the central path through the village, houses lay demolished; piles of rubble leaching glimpses of family life.