Atmospheric Pollutants — GCSE Chemistry Revision
Revise Atmospheric Pollutants for GCSE Chemistry. Step-by-step explanation, worked examples, common mistakes and exam-style practice aligned to AQA, Edexcel, OCR, WJEC, Eduqas, CCEA, Cambridge International (CIE), SQA, IB, AP.
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Go to Carbon FootprintsWhat is Atmospheric Pollutants?
In addition to greenhouse gases, human activities can release other pollutants into the atmosphere. These include carbon monoxide, sulfur dioxide, and nitrogen oxides. These pollutants can cause a range of environmental problems, such as acid rain, and can also be harmful to human health.
Board notes: Atmospheric pollution is covered by all exam boards. You need to know the sources, effects, and potential solutions for pollutants like sulfur dioxide, nitrogen oxides, and particulates.
Step-by-step explanationWorked example
Sulfur dioxide is produced when fossil fuels containing sulfur impurities are burned. It dissolves in rainwater to form sulfuric acid, which falls as acid rain. Acid rain can damage buildings, kill trees and fish, and acidify soils.
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Common mistakes
- 1Confusing the causes and effects of different pollutants. For example, sulfur dioxide causes acid rain, while carbon monoxide is a toxic gas.
- 2Forgetting that these pollutants are primarily produced by the combustion of fossil fuels.
- 3Not knowing the specific problems caused by each pollutant. For example, particulates (soot) can cause global dimming and respiratory problems.
Atmospheric Pollutants exam questions
Exam-style questions for Atmospheric Pollutants with mark-scheme style solutions and timing practice. Aligned to AQA, Edexcel, OCR, WJEC, Eduqas, CCEA, Cambridge International (CIE), SQA, IB, AP specifications.
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Step-by-step method
Step-by-step explanation
4 steps · Worked method for Atmospheric Pollutants
Core concept
In addition to greenhouse gases, human activities can release other pollutants into the atmosphere. These include carbon monoxide, sulfur dioxide, and nitrogen oxides. These pollutants can cause a ran…
Frequently asked questions
How is carbon monoxide produced?
Carbon monoxide is produced by the incomplete combustion of carbon-based fuels. This happens when there is not enough oxygen for complete combustion to carbon dioxide.
What are nitrogen oxides and how are they formed?
Nitrogen oxides are formed at high temperatures, such as in car engines, where nitrogen and oxygen from the air react together. They contribute to acid rain and photochemical smog.