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8. Atmospheric Pollution

Atmospheric pollution poses significant threats to human health, the environment, and climate. Major air pollutants include carbon monoxide, carbon dioxide, sulfur dioxide, nitrogen oxides, and particulate matter, each having harmful effects. The chapter also discusses the greenhouse effect, global warming, acid rain, ozone layer depletion, and methods for controlling air pollution.

Sections

  • 8

    Atmospheric Pollution

    Atmospheric pollution is the contamination of air caused by harmful pollutants, impacting health and the environment.

  • 8.1

    Introduction

    Atmospheric pollution is the contamination of air due to harmful substances affecting health and the environment.

  • 8.2

    Composition Of Air

    The composition of air is primarily nitrogen and oxygen, along with small amounts of carbon dioxide, inert gases, and varying levels of water vapor and pollutants.

  • 8.3

    Major Air Pollutants

    Major air pollutants include harmful substances such as carbon monoxide, carbon dioxide, sulfur dioxide, nitrogen oxides, and particulate matter that impact health and the environment.

  • 8.3.1

    Carbon Monoxide (Co)

    Carbon monoxide is a harmful air pollutant produced mainly from incomplete combustion of fuels, significantly affecting human health by reducing blood's oxygen-carrying capacity.

  • 8.3.2

    Carbon Dioxide (Co₂)

    Carbon dioxide (CO₂) is a major air pollutant sourced primarily from respiration and fossil fuel combustion, significantly contributing to climate change as a greenhouse gas.

  • 8.3.3

    Sulphur Dioxide (So₂)

    Sulphur Dioxide (SO₂) is a significant air pollutant mainly produced from the burning of coal and petroleum, leading to serious health and environmental effects.

  • 8.3.4

    Nitrogen Oxides (No, No₂)

    This section explains the sources and effects of nitrogen oxides, emphasizing their role in environmental pollution.

  • 8.3.5

    Particulate Matter

    Particulate matter consists of tiny particles in the air that pose significant health risks to humans and contribute to environmental pollution.

  • 8.4

    Harmful Effects Of Air Pollution

    Air pollution significantly impacts human health, vegetation, buildings, and climate.

  • 8.5

    Greenhouse Effect And Global Warming

    The greenhouse effect is crucial for maintaining Earth's temperature, but excessive greenhouse gases like CO₂ contribute to global warming, leading to severe environmental consequences.

  • 8.5.1

    Greenhouse Effect

    The greenhouse effect is a natural process essential for maintaining Earth's temperature, but excessive greenhouse gases lead to global warming and climate change.

  • 8.5.2

    Global Warming

    Global warming results from the greenhouse effect exacerbated by human activities and leads to significant environmental changes.

  • 8.6

    Acid Rain

    Acid rain is a form of precipitation that contains high levels of sulfuric and nitric acids, significantly impacting the environment.

  • 8.7

    Ozone Layer Depletion

    The ozone layer, crucial for protecting Earth from UV rays, is depleted mainly by chlorofluorocarbons (CFCs), leading to increased harmful effects such as skin cancer.

  • 8.8

    Control And Prevention Of Air Pollution

    This section outlines various strategies to control and prevent air pollution, highlighting technology and public policy actions necessary for cleaner air.

References

ch8.pdf

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What we have learnt

  • Atmospheric pollution is ca...
  • Major air pollutants includ...
  • Greenhouse gases and acid r...

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