highly significantp < 0.01
Figure 6 showed that soil pH exhibited a highly significant negative correlation with Cr(VI) content (correlation coefficient r = −0.98, p < 0.01), indicating a decrease in Cr(VI) content induced by a soil pH increase.
Figure 6 showed that soil pH exhibited a highly significant negative correlation with Cr(VI) content (correlation coefficient r = −0.98, p < 0.01), indicating a decrease in Cr(VI) content induced by a soil pH increase.