Water Pollution

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Across
  1. 2. Units to measure turbidity (3 letters)
  2. 5. The _______ cities in China are a way for cities to handle urbanization by managing their storm water (6 letters)
  3. 6. Black liquid pollutant that spreads on oceans from tanker accidents (3 letters)
  4. 7. means low oxygen, often caused by nutrient pollution.
  5. 8. This pollutant is toxic to aquatic organisms and bioaccumulate in the food chain, some examples are lead and mercury (5 letters)
Down
  1. 1. A very harmful type of pesticide, Rachel Carson helped banning it in the US (abbrev., 3 letters)
  2. 2. This type of pollution disrupts natural cycles of aquatic species like migration and reproduction of marine mammals (5 letters)
  3. 3. ___ Water is harmful for aquatic systems because high temperatures lower oxygen levels and harm temperature-sensitive species (3 letters)
  4. 4. Nutrient-rich waste from farms that causes algal blooms (10 letters)