हर नदी मैली•यमुना की सहायक नदियां हिंडन, काली और कृष्णा बुरी तरह पॉल्यूटेड हुईं
•पेपर और शुगर मिल से निकलने वाला केमिकल इन नदियों में गिर रहा है
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/%E0%A4%B5%E0%A5%87%E0%A4%B8%E0%A5%8D%E0%A4%9F-%E0%A4%AF%E0%A5%82%E0%A4%AA%E0%A5%80-%E0%A4%95%E0%A4%BE-%E0%A4%AD%E0%A5%80-%E2%80%98%E0%A4%9C%E0%A4%B9%E0%A4%B0%E2%80%99-%E0%A4%AF%E0%A4%AE%E0%A5%81%E0%A4%A8%E0%A4%BE-%E0%A4%AE%E0%A5%87%E0%A4%82
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/navbharat-times-new-delhi
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/delhi
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/yamuna
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/hindon
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/river-pollution
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/uttar-pradesh
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/haryana