Pre-Study: What to Study
13 Subtopics · 114 ConceptsMeaning and Sources of Water Pollution
Importance 3/5 What to StudyDissolved Oxygen (DO)
Importance 4/5 What to StudyBiochemical Oxygen Demand (BOD)
Importance 5/5 What to StudyChemical Oxygen Demand (COD) and BOD Compared
Importance 4/5 What to Study
Industrial, Thermal and Mining Sources
Industrial Wastes and Heavy Metals in Surface Water
Importance 3/5 What to StudyThermal and Radiation Pollution
Importance 3/5 What to StudyMining and Acid Mine Drainage
Importance 3/5 What to StudyGroundwater and Surface Freshwater Contamination
Drinking Water Contamination in India
Importance 3/5 What to StudyNitrates and Blue Baby Syndrome
Importance 4/5 What to StudyArsenic Contamination
Importance 4/5 What to StudyFluoride and Fluorosis
Importance 4/5 What to StudyUranium and Radon in Groundwater
Importance 4/5 What to StudyFreshwater Salinisation Syndrome
Importance 2/5 What to StudySewage, Agricultural Runoff and Aquatic Weeds
Sewage and Ammonia Pollution
Importance 3/5 What to StudyAgricultural Runoff and Nitrogen Pollution
Importance 3/5 What to StudyInvasive Aquatic Weeds (Water Hyacinth, Forked Fanwort)
Importance 2/5 What to StudyRiver and Marine Pollution
Pollution in the River Ganga
Importance 3/5 What to StudyOil Spills and Their Clean-Up
Importance 3/5 What to StudyMarine Plastic Pollution
Importance 3/5 What to Study
Effects on Health and Aquatic Life
Waterborne Diseases and Metal Poisoning (Minamata, Itai-Itai)
Importance 4/5 What to StudyOxygen Depletion and Biomagnification
Importance 4/5 What to StudyEffects on Aquatic Ecosystems and Indicator Species
Importance 2/5 What to StudyOcean Warming and Methylmercury in Fish
Importance 2/5 What to StudyEutrophication, Algal Blooms and Dead Zones
Natural and Cultural Eutrophication
Importance 5/5 What to StudyEffects of Eutrophication
Importance 3/5 What to StudyAlgal Blooms and Oxygen Depletion
Importance 4/5 What to StudyPhytoplankton and Chlorophyll Types
Importance 2/5 What to StudyHarmful Algal Blooms
Importance 4/5 What to StudyOcean Deoxygenation
Importance 3/5 What to StudyDead Zones
Importance 4/5 What to StudyBlue Tide and Bioluminescence
Importance 2/5 What to Study
Bioremediation
Bioremediation and In-Situ Techniques (Oilzapper)
Importance 4/5 What to StudyEx-Situ Bioremediation and Arsenic-Removing Bacteria
Importance 2/5 What to StudyBiofilters in Recirculating Aquaculture Systems
Importance 4/5 What to StudyAdvantages and Limits of Bioremediation
Importance 4/5 What to StudyRiparian Buffers and Phytoremediation
Riparian Buffers
Importance 2/5 What to StudyPhytoremediation
Importance 3/5 What to StudyTreatment of Water for Domestic Use
Coagulation, Sedimentation and Filtration
Importance 2/5 What to StudyDisinfection by Chlorination and Ozonation
Importance 3/5 What to StudyFluoridation and Defluoridation
Importance 2/5 What to StudypH Correction and Removal of Iron and Arsenic
Importance 1/5 What to StudyBio-Toilets
Aerobic, Anaerobic and Facultative Bacteria
Importance 2/5 What to StudyAnaerobic and Aerobic Biodegradation Compared
Importance 3/5 What to StudyRailway Bio-Toilets and EcoSan Toilets
Importance 4/5 What to Study
Water (Prevention and Control of Pollution) Act, 1974 and Its Consent Regime
Importance 5/5 What to StudyCentral and State Pollution Control Boards
Importance 4/5 What to StudyWater (Prevention and Control of Pollution) Amendment Act, 2024
Importance 4/5 What to StudyConsent Exemptions and the SPCB Chairperson After 2024
Importance 3/5 What to StudyWater Cess Act, 1977
Importance 3/5 What to Study
Water Quality Criteria and Monitoring
CPCB Designated Best Use Classes
Importance 4/5 What to StudyBIS Drinking Water Standard (IS 10500)
Importance 4/5 What to StudyNational Water Quality Monitoring Programme and Polluted River Stretches
Importance 3/5 What to StudyGanga and River Conservation Programmes
Ganga Action Plan and Bathing Class Standards
Importance 3/5 What to StudyNational River Conservation Plan
Importance 3/5 What to StudyNGRBA, National Ganga Council and NMCG
Importance 5/5 What to StudyNamami Gange Programme
Importance 4/5 What to StudyProject Arth Ganga and Clean Ganga Fund
Importance 3/5 What to StudySwachh Bharat Mission
Swachh Bharat Mission (Gramin) and ODF Status
Importance 3/5 What to StudySwachh Bharat Mission Phase II and ODF Plus
Importance 3/5 What to StudySwachh Iconic Places
Importance 1/5 What to Study
Convention on Dumping of Wastes at Sea
London Convention, 1972 and Its Amendments
Importance 3/5 What to Study1996 London Protocol and the 2006 Sub-Seabed CO2 Amendment
Importance 3/5 What to StudyUNCLOS and Ocean Governance
UNCLOS: Marine Environment Duties and Its Institutions
Importance 4/5 What to StudyInternational Seabed Authority
Importance 3/5 What to StudyUN Ocean Conference, 2025 (Nice)
Importance 3/5 What to StudyHigh Seas Treaty
High Seas and Areas Beyond National Jurisdiction
Importance 3/5 What to StudyBBNJ Agreement: Aim, Entry Into Force and India's Status
Importance 5/5 What to StudyKey Features of the BBNJ Agreement
Importance 4/5 What to Study30x30 Target
Importance 3/5 What to StudyInternational Maritime Organization
IMO and Its Marine Pollution Mandate
Importance 3/5 What to StudyBallast Water Management Convention
Importance 3/5 What to StudyBunker Convention and Regional Oil Spill Contingency Plan
Importance 2/5 What to Study
Global Water Crisis and City Water Risk
Importance 2/5 What to StudyWater Scarcity, Water Stress and Water Risk Distinguished
Importance 4/5 What to StudyWater-Scarce and Water-Stressed Regions of India
Importance 3/5 What to StudyUN 2026 Water Conference and SDG 6
Importance 3/5 What to Study
Water Availability
India's Share of Global Water and Water-Scarce Basins
Importance 3/5 What to StudyPer-Capita Water Availability and the Falkenmark Indicator
Importance 4/5 What to StudyGroundwater Situation
Dynamic Groundwater Resource Assessment and Stage of Extraction
Importance 4/5 What to StudyOverexploitation of Groundwater and Its Drivers
Importance 5/5 What to StudyCategories of Assessment Units and Recent Trends
Importance 4/5 What to Study
Policy and Institutions
Water as a State Subject and the Centre's Supporting Measures
Importance 3/5 What to StudyNational Water Policy, 2012
Importance 4/5 What to StudyMinistry of Jal Shakti and Its Departments
Importance 3/5 What to StudyCentral Water Commission
Importance 3/5 What to StudyNational Water Development Agency and Interlinking of Rivers
Importance 4/5 What to StudyInter-State River Water Disputes and Article 262
Importance 3/5 What to StudyNational Hydrology Project
Importance 2/5 What to StudyComposite Water Management Index
Importance 3/5 What to StudyMissions and Campaigns
Jal Shakti Abhiyan: Catch the Rain
Importance 5/5 What to StudyJal Sanchay Jan Bhagidari
Importance 3/5 What to StudyJal Jeevan Mission (Har Ghar Jal)
Importance 4/5 What to StudyJal Jeevan Mission (Urban) and AMRUT 2.0
Importance 3/5 What to StudyPradhan Mantri Krishi Sinchayee Yojana
Importance 4/5 What to Study
Groundwater Regulation and Science
Central Ground Water Authority: Legal Basis and NOC Regime
Importance 5/5 What to StudyCGWA Compliance, Water Audits and the Bhu-Neer Portal
Importance 2/5 What to StudyNGT Directions on Groundwater Permissions
Importance 3/5 What to StudyCentral Ground Water Board and NAQUIM
Importance 4/5 What to StudyGWMR Scheme, Artificial Recharge Master Plan and Groundwater Quality Report
Importance 2/5 What to StudyMihir Shah Committee
Importance 3/5 What to StudyGroundwater and Water Body Schemes
Atal Bhujal Yojana
Importance 4/5 What to StudyMission Amrit Sarovar
Importance 3/5 What to StudyBihar's Water Initiatives (Har Ghar Gangajal, Jal-Jeevan-Hariyali)
Importance 1/5 What to Study
Clean Water Sanctuaries
Importance 2/5 What to StudySponge City Concept
Importance 4/5 What to StudyDesalination
Importance 4/5 What to StudyNanotechnology Filtration and Bioaugmentation
Importance 3/5 What to StudyTraditional and Community Water Conservation Practices
Importance 3/5 What to Study
Understanding Droughts
Definition of Drought and Drought Year
Importance 3/5 What to StudyTypes of Drought and Assessment Indicators
Importance 4/5 What to StudyFlash Droughts
Importance 3/5 What to StudyDrought Management
International Efforts for Drought Management
Importance 3/5 What to StudyLegal Framework for Drought in India (Swaraj Abhiyan)
Importance 3/5 What to StudyNDMA Drought Guidelines and Way Forward
Importance 2/5 What to Study