Correlation Between Distance Of Cipayung Landfill And Chromium (VI) Concentration In Groundwater Bulak Barat Village, Depok, Indonesia

Cipayung landfill is the only landfill in Depok; the processing method still is open dumping. Open dumping can cause environmental degradation, pollution of groundwater due to leaching. Leachate water generally contains organic and inorganic compounds (heavy metals), one of the heavy metals contained in leachate is chromium (VI). This study aims to determine the correlation between the distance of the landfill with chromium (VI) concentration in the community groundwater. This research is an observational analytic study with cross-sectional design and uses purposive sampling technique. The chromium (VI) concentration in groundwater around Cipayung landfill was taken from 45 groundwater samples belonging to the community neighbourhood and Hamlet, Bulak Barat village, Cipayung urban village, Depok, were analyzed in a laboratory by using the atomic absorption spectrophotometry method (AAS). The correlation between the landfill distance with the chromium (VI) concentration in groundwater was tested using a non-parametric Spearman correlation test and simple linear regression analysis because the concentration of chromium (VI) data in groundwater is abnormal. The results of the analysis revealed that the distance of the landfill does not correlate with the chromium (VI) concentration in 45 groundwater samples.