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You need to specify the units used to take the measurement. It could be presented in Sv, Gy, rad or mrem. (So I am asking you 0.3 what??)

Light radiation sickness begins at about

50-100 rad

0.5-1 gray (Gy)

0.5-1 Sievert (Sv)

50-100 rem

50,000-100,000 mrem

So if your measurement is in Rad - no it's not a lot. If it's in Gy or Sv then it is a significant dose, but will not cause acute sickness. If it's in rem then it's not a lot.

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13y ago

What else can I help you with?