IGCSEScienceEdexcelScience (Double Award)BiologyRevision Notes4. Ecology & the EnvironmentHuman Influences on the EnvironmentBiological Consequences of Air Pollution

Biological Consequences of Air Pollution (Edexcel IGCSE Science (Double Award): Biology): Revision Note

Exam code: 4SD0

Lára Marie McIvor

Written by: Lára Marie McIvor

Reviewed by: Lucy Kirkham

Updated on

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

The Effects of Air Pollution

Air pollution

  • There are several biological consequence of air pollution due to a range of different pollutant gases:

    • Carbon monoxide (CO) pollution:

      • Binds to haemoglobin, reducing oxygen transport in blood.

      • Can lead to suffocation and death in high concentrations.

    • Sulfur dioxide (SO₂) pollution:

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

      • Causes respiratory problems in humans.

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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Author
Reviewer
Lára Marie McIvor

Author: Lára Marie McIvor

Expertise: Content Creator

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.

Lucy Kirkham

Reviewer: Lucy Kirkham

Expertise: Content Creator

Lucy has been a passionate Maths teacher for over 12 years, teaching maths across the UK and abroad helping to engage, interest and develop confidence in the subject at all levels.Working as a Head of Department and then Director of Maths, Lucy has advised schools and academy trusts in both Scotland and the East Midlands, where her role was to support and coach teachers to improve Maths teaching for all.