Researchers from Korea evaluate and compare the efficacies of calcite and phosphogypsum in reducing arsenic uptake in crops grown in upland soils that often contain arsenic ions as a pollutant.

Upland arable soil constitutes 90% of the world’s agricultural soil. Worryingly enough, these soils often contain arsenic (As), which can enter the human body through the crops grown. Calcium ...

100 years ago100 years ago Aug. 24, 1923 Reports that men and animals are being poisoned from the use of calcium arsenate and other arsenical poisons used in dusting cotton are not true unless ...

Calcium is important for bone health and other body functions. Learn how much you need, what foods contain the most calcium, and the pros and cons of supplements.