The Baltic University Programme - A regional university network on sustainable development

Chapter 15
The Damaged Environment

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Content

The distribution of pollutants in the environment

  • Pollutants in the environment

  • The pollution chain

  • Transport of pollutants in air

  • Transport of pollutants in water and soil

  • The scale of distribution ­ local, regional, and global

  • The fate of pollutants


Uptake of pollutants by living organisms

  • Bioavailability

  • Inside the organism ­ bioaccumulation and biomagnification

  • Inherited poison ­ from mother to child


Polluted ecosystems

  • Ecosystems ­ pollutants cause chain effects

  • Methods Box 15.1 How to assess effects of chemicals on ecosystem structure and function

  • Number counts

  • Reduced biodiversity, reduced biomass

  • Aquatic ecosystems ­ impact of heavy metals and acid rain

  • Plant ecosystems and pollutants


A new situation ­ low dose effects and hormono-mimetic pollutants

  • A new way to handle ecotoxicological problems

  • Endocrine disrupting substances

  • Case Box 15.2 Tributyltin, TBT

  • Changing sex ­ masculinization of females and imposex

  • Endocrine disruptors and insecticides

  • Is man at risk?


Interaction between environmental impacts

  • Multiplicity of environmental impacts

  • The role of landscape changes

  • Ecosystem changes

  • Case Box 15.3 Damage to ecosystems by the interaction of acidification, metal flows, and landscape changes

  • Chemical pollutants interact


The long term perspective ­ what will happen to the polluted environment?

  • The time dimension of environmental impact

  • From impact to effect ­ when does it reach humans?

  • Healing the environment

  • Persistent pollutants and heavy metals are long-term problems

  • The biological changes

  • The longevity of landscape changes

  • What environment will our children live in?