1. Water Pollution: Diseases and Health Impacts Sadaf Ali, Shiekh Amir, Shafat Ali, Muneeb U. Rehman, Sabhiya Majid, and Ali Mohd Yatoo 2. Toxicity of Heavy Metals in Freshwater Fishes: Challenges and Concerns Aimen Firdous, Jayachithra Ramakrishna Pillai, Muneeb U. Rehman, Shahzada Mudasir Rashid, Saiema Rasool, Sabhiya Majid, Tabasum Rashid, Adil Farooq, and Mubashir Hussain Masoodi 3. Chlorpyrifos Toxicity in Fishes: A Perspective Rukhsana Akhtar, Adil Farooq Wali, Sheeba Shakeel, Saiema Rasool, Muneeb U. Rehman, Yusra Al Dhaher, Hilal Ahmad Wani, Sabhiya Majid, Tehseen Khan, Henna Amin, and Wajhul Qamar 4. Neurotoxicity of Heavy Metals in Fishes: A Mechanistic Approach Sana Farooq, Adil Farooq Wali, Sabhiya Majid, Saiema Rasool, Hilal Ahmad Wani, Showkat Ahmad Bhat, Shafat Ali, Javaid Wani, Rafiqa Echikoti, Shabhat Rasool, Ajaz Ahmad, and Muneeb U. Rehman 5. Mechanism of Toxicity in Aquatic Life Hilal Ahmad Ganaie 6. Pesticide Pollution in an Aquatic Environment Umair Riaz, Faizan Rafi, Muhammad Naveed, Shehzada Munawar Mehdi, Ghulam Murtaza, Abdul Ghaffar Niazi, and Hassan Mehmood 7. Benthic Macroinvertebrates as Bioindicators of Water Quality in Freshwater Bodies Zahoor Ahmad Mir, Mohammad Yasir Arafat, and Yahya Bakhtiyar 8. Biomonitoring and Bioindicators Aarif Ali, Shahzada Mudasir Rashid, Showkat Ahmad Ganie, Manzoor Ur Rahman Mir, Sheikh Bilal, Henna Hamadani, Fozia Shah, Masrat Rashid, Muneeb U. Rahman, and Sabhiya Majid 9. Zooplankton Community: A Valuable Bio-Indicator Tool in Disturbed Wetlands Javaid Ahmad Shah, Ashok K. Pandit, and G. Mustafa Shah 10. Mycoremediation of Pollutants in Aquatic Environs Rezwana Assad, Iflah Rafiq, Iqra Bashir, Irshad Ahmad Sofi, Zafar Ahmad Reshi, and Irfan Rashid 11. Genetically Modified Organisms as Tools for Water Bioremediation Fernanda Maria Policarpo Tonelli, Moline Severino Lemos, and Flávia Cristina Policarpo Tonelli 12. Bio-Indicator Species and Their Role in Monitoring Water Pollution Muniza Manzoor, Kulsum Ahmad Bhat, Naziya Khurshid, Ali Mohd. Yatoo, Zarka Zaheen, Shafat Ali, Md. Niamat Ali, Insha Amin, Manzoor Ur Rahman Mir, Shahzada Mudasir Rashid, and Muneeb U. Rehman