垃圾填埋场渗滤液的产生是世界上发达国家和发展中国家面临的主要问题之一。从工地释放的渗滤液中含有各种有机、无机、重金属，有时还含有有害的化学和有机污染物，这是附近空气和水质恶化的根源。本研究旨在评估渗滤液质量的季节性变化，并通过使用渗滤液污染指数(LPI)确定渗滤液的三个子指数，即LPIorg、LPIin和LPIhm，以及南德里运行的、不受控制的垃圾填埋场的总体LPI。从收集的渗滤液样本中分析了季风前、季风和季风后季节的大约25个参数。在25种污染物中，COD、BOD、NH4-N、EC、TDS四季均超标。其他污染物如TKN、TSS、TCB和Cl的浓度也很高。雨季过后，砷浓度超标。季风前和季风后的铅(Pd)浓度均超过标准限值。季风前亚LPI指数分别为LPIorg 82.0、LPIin 40.8和LPIhm 6.9，季风期亚LPI指数分别为LPIorg 81.4、LPIin 25.5和LPIhm 5.2，季风后亚LPI指数分别为LPIorg 90.5、LPIin 30.2和LPIhm 6.2。在几乎所有季节中，有机污染物LPIorg占主导地位，其次是LPIin和LPIhm。 The overall LPI value of the study area during the pre-monsoon, monsoon and post-monsoon was 32.5, 28.2 and 32.0, respectively. It was observed that overall LPI (calculated) was maximum during pre-monsoon followed by post-monsoon and monsoon. LPI value was beyond the standard limit, except for LPI hm, which was below the standards. It was recommended that more waste-to-energy plants and decentralized waste segregation units need to be set up, to avoid direct dumping of all mixed waste in the landfill sites.