Table 2.

Chemical analysis of leachate samples obtained from three landfill and marshland sites. All parameters are in mg L⁻¹ adapted from Ghosh et al. 2015 and Roy and Gupta 2012 [37, 38].

Parameter	Bhalswa	Ghazipur	Okhla	Silcoorie Lake (Silchar)	Karimganj	Badarpur
pH	8.1	8.4	8.3	6.27	6.89	6.69
TDS	31,469	29,700	33,657	53,282	68,293	65,312
COD	29,930	31,600	29,020	NA	NA	NA
Fe	10.32	9.81	6.51	2.81	6.17	3.89
Cl	227	1174.2	264	9.11	12.60	16.31