Pig farming and their effluent became big issues in 1980s-2000 after we realised that pig farming effluent contain high copper, zinc and caused water quality with high BOD. Sungai Sepang was a good example beside Sungai Juru. Government must take good actions according to rules and regulation. I dont know why and surprise those who are not perform their duties get recognition and promotion. Sepang River water quality have shown good example. Why we let Kuala Langat issues continues. Put high standard of environmental quality control and establish good and high technology system to control pig farming effluent.

http://www.utusan.com.my/berita/nasional/dari-mana-datang-lebihan-250-000-babi-di-selangor-1.441765