Radium bromide Institute had four grams of radium total, which at the time was more than half the world supply. Countries all over the world set out to make as much radium as possible, a time consuming and expensive task. It was reported in "Science" magazine in 1919 that the United States had produced approximately 55 grams of radium since 1913, which was also more than half the radium produced in the world at the time. A principal source for radium is pitchblende, which holds a total of 257 mg of radium per ton of UO. Obviously with so little product recovered
Radium dials loosely referred to as radium jaw. Inhaled or ingested particles may deposit a high local dose with a risk of lung or gastrointestinal cancer due to the radiation dose. The risks are hard to quantify due to the variable levels of radium in the paint and the quantity ingested or inhaled. Care should be taken in handling these materials especially where the paint is damaged. The most common isotope of Radium is Ra, which primarily emits alpha particles. Alpha particles are shielded by most thin materials including paper. However, Ra only emits alpha particles 97 percent of the time with