the low-level radiation that is always present in the environment from natural and artificial sources

पृष्ठभूमि विकिरण

English Usage: The background radiation in the area was measured to ensure it was safe for residents.

Hindi Usage: क्षेत्र में पृष्ठभूमि विकिरण को मापा गया ताकि यह सुनिश्चित किया जा सके कि यह निवासियों के लिए सुरक्षित है।