Indian Institute of Forest Management, Bhopal, Madhya Pradesh India
Open dumps are becoming the final resting place for a diverse mixture of liquid and solid waste from residential, industrial, and commercial sources, and thus, possessing the potential to produce leachate—a liquid waste product that consists of a mixture of chemicals as precipitation or due to application of water/rain upon the open dump. This leachate has the potential to leach slowly into soil, groundwater or surface water causing immense pollution. The leachate pollution index (LPI) value of Okhla landfill site indicated that the waste deposited is contaminated since all values calculated during all the three season viz. pre-monsoon, monsoon, post-monsoon exceeded the standards.