1.3.1

River Pollution

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Causes and Impacts of River Pollution

Human actions cause river pollution, which damages water quality, harms wildlife, and threatens human health and economies.

Human causes of river pollution

Human causes of river pollution

  • Factories release chemicals and waste into rivers.
  • Farming uses fertilisers and pesticides that wash into rivers.
  • Cities discharge untreated sewage and household waste.
  • Mining adds toxic metals and acidic water to rivers.
Impacts on people

Impacts on people

  • River pollution spreads waterborne diseases.
  • Dirty water reduces safe drinking supplies.
  • Fish deaths cut food sources and jobs for fishing.
  • Tourism falls when polluted rivers look or smell unpleasant.
Impacts on ecosystems

Impacts on ecosystems

  • Chemicals poison fish and river plants.
  • Excess fertiliser causes algal blooms that block light.
  • Low oxygen levels kill aquatic life.
  • Pollution reduces biodiversity in rivers and wetlands.
Laws and regulations

Laws and regulations

  • Governments set laws to control river pollution.
  • Industries must limit waste released into rivers.
  • Fines and inspections enforce rules.
  • Strong laws reduce harmful discharges.
Treatment and technology

Treatment and technology

  • Sewage treatment plants clean waste water.
  • Factories use filters and recycling systems.
  • Monitoring devices check river pollution levels.
  • Technology reduces toxic waste entering rivers.
Sustainable approaches

Sustainable approaches

  • Farmers reduce fertiliser use to protect rivers.
  • Planting buffer strips absorbs runoff.
  • Reusing water cuts waste release.
  • Education encourages communities to keep rivers clean.
Evaluating strategies

Evaluating strategies

  • Laws work well but need strict enforcement.
  • Treatment plants are effective but expensive.
  • Sustainable farming lowers pollution long term.
  • Combined methods give the best river protection.
Jump to other topics
1

Paper 1 - Changing River Environnments

1.1

Characteristics of Rivers

1.1.1The Long Profile1.1.2Characteristics of Rivers
1.2

River Landforms

1.2.1Waterfalls & Gorges1.2.2Meanders1.2.3Oxbow Lakes1.2.4Levees1.2.5Floodplains1.2.6Deltas1.2.7Interlocking Spurs
1.3

Rivers: Opportunities & Hazards

1.3.1River Pollution1.3.2River Pollution in the River Thames
1.4

The Bradshaw Model

1.4.1The Bradshaw Model
1.5

The Drainage Basin & the Water Cycle

1.5.1The Drainage Basin & the Water Cycle
1.6

Processes Operating in a Drainage Basin

1.6.1Hydrological Cycle in a Drainage Basin1.6.2Processes in a Drainage Basin
1.7

Processes Operating in a River

1.7.1Erosion1.7.2Transportation1.7.3Deposition1.7.4Diagnostic Misconceptions - Upper Course1.7.5Diagnostic Misconceptions - Deposition
2

Paper 1 - Changing Coastal Environments

2.1

Physical Processes that Shape the Coast

2.1.1Processes of Erosion2.1.2Corrosion & Corrasion2.1.3Transportation2.1.4Deposition2.1.5Longshore Drift2.1.6Types of Waves2.1.7Case Study: The Holderness Coast (UK)2.1.8Case Study: The Holderness Coast - Management2.1.9Case Study: The Holderness Coast - Defences2.1.10Diagnostic Misconceptions - Swash & Backwash
2.2

Landforms

2.2.1Headlands & Bays2.2.2Beaches, Stumps, & Cliffs2.2.3Wave-cut Platforms2.2.4Caves, Arches, & Stacks2.2.5Spits, Bars, & Sand Dunes2.2.6Discordant & Concordant Coastlines
2.3

Opportunities & Hazards

2.3.1Opportunities & Hazards2.3.2Managing Flooding - Hard Engineering2.3.3Coastal Management - Hard Engineering2.3.4Coastal Management - More Hard Engineering2.3.5Coastal Management - Soft Engineering2.3.6End of Topic Test - Rivers2.3.7End of Topic Test -Coasts
2.4

Tropical Storms

2.4.1Tropical Storms2.4.2Structure of Tropical Storms2.4.3Causes of Tropical Storms2.4.4Effects of Tropical Storms2.4.5Hazards of Tropical Storms2.4.6Case Study: Hurricane Katrina - Effects2.4.7Case Study: Hurricane Katrina - Responses2.4.8Case Study: Cyclone Nargis - Responses2.4.9Case Study: Cyclone Nargis2.4.10Mathematical Skills: Weather Hazards2.4.11Diagnostic Misconceptions - Rainfall
2.5

Protection & Management

2.5.1Coral Reefs2.5.2Types of Reefs2.5.3Importance of Coral Reefs2.5.4Mangrove Swamps2.5.5Importance of Mangroves
3

Paper 1 - Changing Ecosystems

3.1

Antarctic

3.1.1Features of the Antartic Ecosystem3.1.2Factors Influencing the Antarctic3.1.3Abiotic–Biotic Factors & Adaptations
3.2

Threats to the Antarctic

3.2.1Antarctic: Threats & Impacts3.2.2Antarctic: Evaluation of Strategies
3.3

Tropical Rainforest

3.3.1Global Distribution & Characteristics3.3.2Tropical Rainforest: Structure3.3.3Tropical Rainforest: Interrelationships
3.4

Tropical Rainforest: Threats

3.4.1ThreatsThreats & Impacts3.4.2Evaluation of Strategies3.4.3Mathematical Skills: Deforestation3.4.4Rainforest Case Study
4

Paper 1 - Tectonic Hazards

4.1

The Structure of the Earth

4.1.1Structure of the Earth: Characteristics4.1.2Tectonic Plates4.1.3Plate Margins4.1.4Plate Boundaries4.1.5Earthquakes at Plate Margins
4.2

The Processes of Earthquakes & Volcanoes

4.2.1Earthquakes: Processes & Characteristics4.2.2Earthquake Hazards4.2.3Types of Volcano4.2.4Classification & Features4.2.5Volcanic Hazards4.2.6Diagnostic Misconceptions - Lava4.2.7Diagnostic Misconceptions - Location of Volcanoes4.2.8Diagnostic Misconceptions - Focus vs Epicentre4.2.9Diagnostic Misconceptions - Sliding Plates
4.3

The Impacts of Tectonic Hazards

4.3.1Why do People Live Near Volcanoes?4.3.2Primary Effects of Volcanoes4.3.3Secondary Effects of Volcanoes4.3.4Measuring Earthquakes
4.4

Managing the Impacts of Tectonic Hazards

4.4.1Managing Impacts of Tectonic Hazards - Monitoring4.4.2Managing Impacts of Tectonic Hazards - Planning4.4.3Case Study: Agung4.4.4Case Study: Christchurch4.4.5Mathematic Skills: Tectonic Hazards
5

Paper 1 - Climate Change

5.1

Natural & Human Causes of Climate Change

5.1.1Climate Change: Evidence5.1.2Climate Change: Factors5.1.3Climate Change: Human Influence5.1.4Diagnostic Misconceptions - Greenhouse Effect5.1.5Diagnostic Misconceptions - 1°C Change in Temp.
5.2

Impacts of Climate Change

5.2.1Impact on the Environment5.2.2Impact on People5.2.3Diagnostic Misconceptions - Species Adaptation
5.3

Responses to Climate Change

5.3.1Climate Change: Strategies5.3.2Evaluation of Mitigation5.3.3Climate Change: Case Study
6

Paper 2 - Changing Populations

6.1

Populations Grow & Decline

6.1.1Reasons for Growth & Decline6.1.2Patterns & Trends6.1.3Evaluation of Impacts6.1.4Demographic Transition Model (DTM)6.1.5Stages of the Demographic Transition Model6.1.6Diagnostic Misconceptions - Declining Birth Rate
6.2

Population Structures Over Time

6.2.1Factors Influencing Birth Rates6.2.2Factors Influencing Death Rates6.2.3Population Policies6.2.4Population Structure6.2.5Population Pyramids6.2.6Case Study: UK's Ageing Population - Causes6.2.7Case Study: UK's Ageing Population - Effects6.2.8Case Study: UK's Ageing Population - Responses
6.3

Causes & Impacts of International Migration

6.3.1Migration6.3.2Impacts of Migration6.3.3Types of Migrant & Causes6.3.4Evaluation of Strategies6.3.5Case Study: Afghanistan to Pakistan6.3.6Case Study: Mexico to the USA6.3.7End of Topic Test - Populations
7

Paper 2 - Changing Towns & Cities

7.1

Where People Live

7.1.1Variations in Global Population
7.2

Opportunities & Challenges of Urbanisation

7.2.1Opportunities & Challenges7.2.2Impact7.2.3Diagnostic Misconceptions - Inequality7.2.4Diagnostic Misconceptions - Urbanisation7.2.5Diagnostic Misconceptions - Megacities
7.3

Management of Urban Growth

7.3.1Evaluation of Strategies7.3.2Case Study: Notting Hill & Leicester7.3.3Mathematical Skills: Urban Issues7.3.4End of Topic Test - Urbanisation
8

Paper 2 - Development

8.1

Measuring Development

8.1.1Social & Economic Indicators8.1.2Comparing Countries8.1.3Development: Environmental Factors8.1.4Development: Historical Factors8.1.5Development: Political Causes8.1.6Development: Social Causes8.1.7Development: Economic Causes
8.2

Uneven Development

8.2.1Reasons for Uneven Development8.2.2Uneven Development: Patterns8.2.3Measures of Inequality Within Countries8.2.4Case Study: Inequality in China
8.3

Sustainable Development

8.3.1Definition & Techniques8.3.2Case Study: Bangladesh
9

Paper 2 - Changing Economies

9.1

Changing Employment Structures

9.1.1Different Industries9.1.2Changing Employment Structure9.1.3Industrial Location & Distribution
9.2

Globalisation

9.2.1Globalisation Definition & Features9.2.2Globalisation - Transport9.2.3Globalisation - Communication & Banking9.2.4Transnational Corporations (TNCs)9.2.5Case Study: SEZs in China9.2.6Case Study: SEZs in HSBC
9.3

Tourism

9.3.1Factors Leading to the Growth of Tourism9.3.2The Butler Model9.3.3Benefits of Tourism - Economic9.3.4Benefits of Tourism - Social, Cultural & Env.9.3.5Problems with Tourism - Economic9.3.6Problems of Tourism - Social, Cultural & Env.9.3.7Managing Tourism - Sustainability & Ecotourism9.3.8Managing Tourism - Quotas & Tourism Hubs9.3.9Case Study: Blackpool (UK)9.3.10Mathematical Skills: Changing Economic World
10

Paper 2 - Resource Provision

10.1

Food

10.1.1Farming Types10.1.2Human Inputs10.1.3Physical Inputs10.1.4Green Revolution10.1.5Diagnostic Misconceptions - Food
10.2

Patterns of Food Supply & Demand

10.2.1Calorie Intake10.2.2Reasons for Changing Global Supply10.2.3Strategies to Increase Food Supply10.2.4Reasons & Impacts
10.3

Challenges of Food Supply

10.3.1Human Factors10.3.2Natural Factors10.3.3Impacts of Food Insecurity10.3.4Increasing Farm Output10.3.5Food Aid10.3.6Desertification10.3.7Reducing the Risk of Desertification10.3.8Soil Erosion10.3.9Low Impact Farming10.3.10Mathematical Skills: Food
10.4

Energy

10.4.1Types of Energy: Renewable & Non-Renewable10.4.2Non-Renewable: Fuelwood10.4.3Non-Renewable: Nuclear10.4.4Non-Renewable: Fossil Fuels10.4.5Renewable: Wind & Solar10.4.6Renewable: Wave & Tidal10.4.7Renewable: Biofuel10.4.8Renewable: HEP & Geothermal
10.5

Patterns of Energy Supply & Demand

10.5.1Reasons for Increasing Energy Consumption10.5.2Energy Security10.5.3Variations in Energy Use
10.6

Impacts of Energy Production

10.6.1Strategies to Increase Energy Supply10.6.2Evaluation of the Strategies10.6.3Case Study: Iceland10.6.4Case Study: China10.6.5Mathematical Skills: Energy10.6.6End of Topic Test - Energy

Practice questions on River Pollution

Can you answer these? Test yourself with free interactive practice on Seneca — used by over 10 million students.

  1. 1
    Which of the following is a human cause of river pollution?Multiple choice
  2. 2
    How does river pollution affect aquatic life? Multiple choice
  3. 3
    Select the correct statements:True / false
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Interlocking Spurs

River Pollution in the River Thames