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Journal of Chemistry
/
2017
/
Article
/
Tab 4
/
Research Article
Comparison of Natural Radioactivity of Commonly Used Fertilizer Materials in Egypt and Japan
Table 4
The Radium equivalent and hazard index in Japanese fertilizers.
Sample code
Radium equivalent
, (Bq kg
−1
)
External hazard index (
)
Internal hazard index (
)
JF1
JF2
JF3
JF4
JF5