Table 8 Correlation of heavy metal content in rice with soil and irrigation water.

From: Assessment of environmental impacts of heavy metal pollution in rice in Nanning, China

The sample

Arsenic

Lead

Cadmium

Zinc

Mercury

Total

Rice-soil

0.202*

0.058

0.057

0.380

–

0.124

Rice-water

0.018

0.190

0.029

0.025

0.343*

0.060

  1. Note: * means at 0.05 level (bilateral) significantly correlated, |r|< 0.4, low linear phase 0.4 or less |r|< 0.7 moderate linear correlation, and 0.7 or less |r|< 1high linear correlation.
Back to article page