Syllabus Edition

First teaching 2015

Last exams 2025

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Pollution Management

Alistair Marjot

Written by: Alistair Marjot

Reviewed by: Bridgette Barrett

Pollution Management

  • Human activities, such as farming and industrial practices, urbanisation, development of transport, and energy production, are the major causes of pollution

    • The amount of material released into the environment determines the impact

  • There are three main stages leading to the impact of pollutants on the environment

    • Stage 1: Human activity producing the pollutant

    • Stage 2: Releasing of the pollutant into the environment

    • Stage 3: The impact of the pollutant on ecosystems

HO0-k0eV_1-5-4-stages-of-pollutant-impact

The main stages leading to the impact of pollutants

  • There are three strategies for managing the impacts of pollution (which relate to the stages of pollutant impact shown above):

    • Changing human activity

    • Regulating and reducing quantities of pollutants released at the point of emission

    • Cleaning up the pollutants and restoring the ecosystem after pollution has occurred

  • Modern technology can reduce the impact of pollution by managing these three stages of pollutant impacts, for example:

    • Stage 1 could be managed by introducing electric and hybrid cars that use less fossil fuel

    • Stage 2 could be managed by fitting catalytic converters to car exhaust systems or adding scrubbers to industrial chimneys to remove toxic chemicals and allow for their reuse

    • Stage 3 could be managed by using synthetic membranes to capture chemical spills (e.g. mats designed to capture and hold hydrocarbons)

rXaF6WD5_1-5-4-levels-of-pollution-management

The main strategies for managing the impacts of pollution

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