The manager must also be acutely aware of safety standards in the handling and storing of radioactive, volatile, flammable and unstable compounds.

Strontium 90 was chosen as a proxy for the dozens of slow-decaying radioactive compounds in nuclear fallout because it was relatively easy to test for.

With these subjects to work on Tech Judge Cassidy discovers a radioactive compound that is causing the changes, which he names Cassidium.

This is not the radioactive or chemoluminescent compounds, but the one that glows briefly when 'charged' with a bright light source.

"A radioactive compound with a long half-life would have sterilized the soil," he said.

It contains some 30,000 cubic yards of soil laced with thorium, a low-grade radioactive compound produced by a local chemical company.

When radioactive compounds enter the human body, the effects are different from those resulting from exposure to an external radiation source.

At least one radioactive compound, tritium, is believed to have moved beyond the 890-square-mile plant's boundaries.

The radioactive compound had taken no effect upon Farradon until he had opened the cigarette pack and placed the cigarettes in his case.

THE old inventor was unquestionably a genius, who had a full knowledge of radioactive compounds and their reactions.