Radiation levels are a function of radioactive half-life and 8000 years is more than enough time for the radiation levels generated by a Hiroshima sized (or much larger) bomb to return to safe levels. The rate of radiation reduction may be approximated by use of the 7:10 rule of thumb: Each 7-fold increase in time after detonation, gives a 10-fold reduction in radiation level. Both Hiroshima and Nagasaki were repopulated soon after the blasts with very little environmental remediation; both of these cities show little or no sign of their nuclear destruction today (60yrs. ago). I have read many accounts of a Vedic nuclear age bringing and end to the Indus culture but when I research the people quoted in those articles I only find the same material pointing back to itself and its origin in "The World Island Review, January 1992 " To the best of my knowledge this "publication" no longer exists . This Hoax can be undone with the slightest knowledge of the principals of radio isotopic decay (half-life). If you don’t believe me then GOOGLE it for yourself. There are modern sources of radiation in the area they come from the nuclear reactor and RAD waste storage facility established in 1972 along with naturally occurring uranium that is 2.5 billion years old it's description be found in this article:



Note Ma = mega annum is a unit of time equal to one million years. It commonly used in geology.

.
A NOTE ON THE GEOLOGY AND GEOCHEMISTRY
OF RADIOACTIVE PALAEOSOL ON BASEMENT
GRANITES OF ARAVALLI SUPERGROUP,
CHITTORGARH DISTRICT, RAJASTHAN

O.P. YADAV, P.K. PANCHAL, T.S. MIGLANI AND V.P. SAXENA*
Atomic Minerals Directorate for Exploration and Research, Department of Atomic Energy,
Jaipur - 303 906, *Hyderabad - 500 016
Email: amdjai@sanchernet.in

A few centimetre to 3 m thick palaeosol has developed on 2585 Ma old Berach granite along the unconformity that separates the Aravalli Supergroup (2500 – 2000 Ma) from the former. The Berach granites are represented by a mineral assemblage of potash feldspar, sodic plagioclase, quartz and minor ferromagnesian minerals like biotite, hornblende and epidote etc. The subsequent palaeo-alteration is characterized by relative enrichment of Al2O3, K2O, FeO(T) and MgO. Besides, anomalous concentration of U, Th, Y and Zr have also been noted. The criss-cross veinlets of limonite with adsorbed uranium in the palaeosol indicate the presence of anomalous uranium in the system and post- formation solution activity.