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Biological Consequences of Air Pollution (Edexcel IGCSE Biology (Modular)): Revision Note

Lára Marie McIvor

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Edexcel Biology (Modular): Unit 2Edexcel Science (Double Award): BiologyEdexcel Biology

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The Effects of Air Pollution

Air pollution

  • Pollution of air can lead to several biological consequences:

    • Sulfur dioxide (SO₂) pollution:

      • Combines with water vapor to form acid rain, damaging plants, aquatic life, and soil.

      • Causes respiratory problems in humans.

    • Carbon monoxide (CO) pollution:

      • Binds to haemoglobin, reducing oxygen transport in blood.

      • Can lead to suffocation and death in high concentrations.

Air pollution and acid rain

How acid rain is produced, downloadable IGCSE & GCSE Biology revision notes

How air pollution leads to acid rain

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    Lára Marie McIvor

    Author: Lára Marie McIvor

    Expertise: Biology Lead

    Lára graduated from Oxford University in Biological Sciences and has now been a science tutor working in the UK for several years. Lára has a particular interest in the area of infectious disease and epidemiology, and enjoys creating original educational materials that develop confidence and facilitate learning.