Chapter 1: Metagenomics: A Powerful Lens Viewing the Microbial WorldPerumalla Srikanth and Sivakumar Durairaj Chapter 2: Microbial Response to Lead ExposureJ. Anandkumar, Jyoti Kant Choudhari , Jyotsna Choubey, Tanushree Chatterjee, Mukesh Kumar Verma , and Biju Prava Sahariah Chapter 3: Metagenomics and Metatrancriptomic Analysis of WastewaterJyotsna Choubey, Jyoti Kant Choudhari , Mukesh Kumar Verma, Tanushree Chaterjee, Mukesh Kumar Verma, and Biju Prava Sahariah Chapter 4: Environmental Metaproteomics: Tools to Study Microbial CommunitiesHiren K. Patel, Priyanka D. Sheladiya, P. P., Rishee K. Kalaria Chapter 5:Events andHazards in Biotransformation of ContaminantsPratik Jagtap, Aniket K. Gade, and Rajesh W. Raut Chapter 6: Microbial Community Analysis of Contaminated Soils Charles Oluwaseun Adetunji, Ruth Ebunoluwa Bodunrinde, Abel Inobeme, Kshitij RB Singh, John Tsado Mathew, Olugbemi T. Olaniyan, Ogundolie Frank Abimbola, Jay Singh, Vanya Nayak, and Ravindra Pratap Singh Chapter 7: Microbe Performance and Dynamics in Activated Sludge DigestionCharles Oluwaseun Adetunji, Ogundolie Frank Abimbola, Kshitij RB Singh, Olugbemi T. Olaniyan, Ruth Ebunoluwa Bodunrinde, Abel Inobeme, John Tsado Mathew, Jay Singh, and Ravindra Pratap Singh Chapter 8: Genomic Analysis of Heavy Metal-Resistant Genes in Wastewater Treatment PlantsCharles Oluwaseun Adetunji, Abel Inobeme, Kshitij RB Singh, Ruth Ebunoluwa Bodunrinde, John Tsado Mathew, Olugbemi T. Olaniyan, Ogundolie Frank Abimbola, Jay Singh, Vanya Nayak, and Ravindra Pratap Singh Chapter 9: Molecular Characterization of Multidrug-Resistant Genes in Wastewater Treatment PlantsCharles Oluwaseun Adetunji, John Tsado Mathew, Kshitij RB Singh, Ruth Ebunoluwa Bodunrinde, Abel Inobeme, Olugbemi T. Olaniyan, Ogundolie Frank Abimbola, Jay Singh, Vanya Nayak, and Ravindra Pratap Singh Chapter 10: Microbes andEvents in Contaminant Biotransformation Sreejita Ghosh, Dibyajit Lahiri, Moupriya Nag, Sougata Ghosh, and Rina Rani Ray Chapter 11: Metagenomics for Studying Microbes inn Wastewater Treatment PlantsAnand Thirunavukarasou, Sweety Kaur,and Harvinder Kour Khera Chapter 12: Diversity andIinteraction of Microbes in Biodegradation Aditya Ruikar and Hitesh. S. Pawar Chapter 13: Metagenomics: A Pathway for Searching in Microbial ContextsAditi Nag, Bhavuk Gupta, and Sudipti Arora