Elements found in blood 🩸: Strontium, Barium, Cesium-137 1. Strontium (Sr) • Possible Use: Allegedly used in atmospheric aerosol programs to reflect sunlight (solar radiation management). • Biological Impact: • Mimics calcium → Can displace calcium in bones, leading to weaker bone structure. • May suppress parathyroid function and alter bone mineralization. • Can accumulate long-term with toxic strontium isotopes (less concern with natural strontium). 2. Barium (Ba) • Possible Use: Proposed in