Sewage
- Wastewater from toilets and house drains. Examples are human waste, paints, etc.
Pathogens
- Typhoid and cholera carried into waterways. Human and animal waste are examples
Plant Nutrients
- Phosphates and nitrates. Sources are sewage, feedlots, etc. Causes eutrophication
Organic Compounds
- Oil, gas pesticides, detergents. Comes from industrial waste, surface runoff. Can kill wildlife, cause nervous system damage
Toxic Inorganic Compounds
- Lead, arsenic salt, acids. Comes from surface runoff, household cleaners. Harms drinking water, can cause cancer, etc.
Sediment
- Soil, silt. Comes from eroded land. Reduced photosynthesis, carries pesticides, etc.
No comments:
Post a Comment