Measuring Environmental Change
Measuring Environmental Change and Environmental Indicators, OCR 21st Century Science.
- Created by: bronteappleby
- Created on: 27-04-14 10:42
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- Environmental Indicators
- Temperature
- Indicator of Global Warming
- Indicates climate of the environment is changing
- Nitrate Level
- In Water
- Caused by Sewage or Fertilisers
- Water being polluted
- Carbon Dioxide Level
- In Air
- Could be caused by burning Fossil Fuels
- Increases the rate of Global Warming
- Lichen
- In Air
- Sensitive to levels of Sulfur Dioxide in the atmosphere
- Number and Type of Lichen gives us an idea of how clean the air is
- Mayfly Nymphs
- Water Pollution
- Sensitive to the level of Oxygen in Water, if it's clean - you'll find Mayfly Nymphs
- Less Mayfly Nymphs = more bacteria from Sewage
- Phytoplankton
- Populations increase when the levels of nitrates and phosphates in WATER
- Increase in nitrates and phosphates causes of ALGAL BLOOM which causes WATER POLLUTION
- This pollutons could be caused by bad sewage treatment or adding fertilisers (Eutrophication)
- Temperature
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