The presence of cadmium concentration (Fig. 6) exceeds the permissible limit of 0.01 mg/L in all the collected samples. From the Fig. 6, it was observed that the con- taminant species from the waste disposal site had migrated and accumulated at the location W6. Figure 7 shows the contour diagram of Cu distribution contaminant species from the location W3, it was located near an open dumping site toward southwest of the study area. From the Fig. 9,
Ariyamangalam open dump site, which likely indicate the origin of Mn, Pb, Cu, Cd, and Fe in leachate.it was found that the presence of high concentration of Pb (0.59 mg/L) in groundwater samples nearby dumping site implies that groundwater samples were contaminated by leachate migration from an open dumping site. The con- centrations of Zn (Fig. 10) in the collected samples were within the permissible limit. Based on the contour diagram (from Figs. 6, 7, 8, 9, 10), the heavy metals such as lead (Pb), manganese (Mn), copper (Cu), Cadmium (Cd) showed significantly high values, which exceeded the maximum permissible
Ariyamangalam open dump site, which likely indicate the origin of Mn, Pb, Cu, Cd, and Fe in leachate.it was found that the presence of high concentration of Pb (0.59 mg/L) in groundwater samples nearby dumping site implies that groundwater samples were contaminated by leachate migration from an open dumping site. The con- centrations of Zn (Fig. 10) in the collected samples were within the permissible limit. Based on the contour diagram (from Figs. 6, 7, 8, 9, 10), the heavy metals such as lead (Pb), manganese (Mn), copper (Cu), Cadmium (Cd) showed significantly high values, which exceeded the maximum permissible
SO42- (r = 0.155, p B 0.01), Ca2? (r = 0.838, p B 0.01) and Mg2? (r = 0.882, p B 0.01). This result implies that there was great dependence of hardness on calcium, mag- nesium, chloride, sulfate, and bicarbonate. pH was nega- tively correlated with all the parameters except SO42-. Similarly few other parameters were also found to have negative correlation, viz TDS—SO42- (r =-0.238), Ca2?—SO42- (r =-0.032) and Mg2? –Cl- (r =-0.012). EC is solely a function of the major ion concentrations (Ca2?, Mg 2?, Cl -, SO 4 2-, and NO3-) of water quality parameters.
The result was compared with the study reported by Kapil et al. (2009) for Indian conditions. They revealed that the major positive linear correlation was found in EC with all the water quality parameters in their study area.Conclusion The indiscriminate disposal and crude dumping of MSW are considered as a dangerous practice in integrated waste management at the global level. The fresh solid waste composition study shows that samples from the open dump site contained about 90–95 % combustible materials and non-combustible fraction is about 1–5 %. The fresh leach- ate sample possesses very high concentration of chemical parameters except pH, when compared to stabilized leach- ate samples. The heavy metal concentration range of col-
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