Radium. A radioactive element of the alkaline earth series of metals. It has the atomic symbol Ra, atomic number 88, and atomic weight 226. Radium is the product of the disintegration of uranium and is present in pitchblende and all ores containing uranium. It is used clinically as a source of beta and gamma-rays in radiotherapy, particularly BRACHYTHERAPY.

'Water Pollution, Radioactive' is the contamination of water bodies with radioactive substances, typically as a result of human activities such as mining, nuclear power generation, or improper waste disposal, which can lead to harmful health effects in humans and aquatic life due to radiation exposure.

Pollutants, present in water or bodies of water, which exhibit radioactivity.

Radiation from sources other than the source of interest. It is due to cosmic rays and natural radioactivity in the environment.

Tumors, cancer or other neoplasms produced by exposure to ionizing or non-ionizing radiation.

Process that is gone through in order for a drug to receive approval by a government regulatory agency. This includes any required pre-clinical or clinical testing, review, submission, and evaluation of the applications and test results, and post-marketing surveillance of the drug.

An agency of the PUBLIC HEALTH SERVICE concerned with the overall planning, promoting, and administering of programs pertaining to maintaining standards of quality of foods, drugs, therapeutic devices, etc.

Tumors or cancer of the PROSTATE.

Organic compounds which contain tin in the molecule. Used widely in industry and agriculture.

Toxic, chlorinated, saturated hydrocarbons. Include both the 1,1- and 1,2-dichloro isomers. The latter is considerably more toxic. It has a sweet taste, ethereal odor and has been used as a fumigant and intoxicant among sniffers. Has many household and industrial uses.