Assessing Pollution

Cards (4)

  • Indicator species like bloodworms and sludgeworms can assess water pollution levels, while freshwater shrimps and stonefly indicate clean water
  • Lichen and Blackspot fungus asses the levels of pollution by indicating levels of SO2 in the air by the presence of lichen and black spots on leaves
  • Freshwater shrimp, Stone fly and Dragon fly asses the levels of high oxygen in the water.
    More of these organisms in the water = higher O2 levels in water
  • Bloodworm and sludge worm assess the low levels of CO2 in the water.
    More of these organisms = lower levels of O2 in the water