The coefficient values ( r ) and strength of correlation can be categorized as follows: (i) very weak correlation ( r = 0.0–0.2), (ii) slightly significant correlation ( r = 0.2–0.4), (iii) moderate correlation ( r = 0.4–0.6), (iv) strong correlation ( r = 0.6–0.8), and (v) very strong correlation ( r = 0.8–1.0).
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Evaluation of Heavy Metal Contamination in Soil Samples around Rampal, Bangladesh.
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