Source (I) Source (J) Mean Difference (I-J) Std. Error Sig. 95% Confidence Interval
Lower Bound Upper Bound
Soil Forage 4.4230* 0.24471 0.000 3.7731 5.0728
Blood 3.8569* 0.22339 0.000 3.2637 4.4502
Milk 7.3653* 0.29971 0.000 6.5694 8.1612
Forage Soil -4.4230* 0.24471 0.000 -5.0728 -3.7731
Blood -0.5661 0.22339 0.071 -1.1593 0.0272
Milk 2.9423* 0.29971 0.000 2.1464 3.7383
Blood Soil -3.8569* 0.22339 0.000 -4.4502 -3.2637
Forage 0.5661 0.22339 0.071 -0.0272 1.1593
Milk 3.5084* 0.28257 0.000 2.7580 4.2588
Milk Soil -7.3653* 0.29971 0.000 -8.1612 -6.5694
Forage -2.9423* 0.29971 0.000 -3.7383 -2.1464
Blood -3.5084* 0.28257 0.000 -4.2598 -2.7580
*The mean difference is significant at the 0.05 level
Table 2: Bonferroni multiple comparison test of means chromium concentration due to source.