Water Pullution

4. oil on the surface of the water
6. people living in rural areas use these to break down sewage
10. the amount of oxygen a quantity of water uses over a period of time
11. are chemicals that interfere with hormonal systems
13. something that affects developing fetuses
15. this is a source of mercury, arsenic, and lead that causes these heavy metals to be blown far away. Can contaminate ponds, soil, and leach into groundwater
17. the left over physical waste after the primary and secondary treatment of the water treatment process.
19. Valdez a tragic oil spill caused by a punctured tanker
21. can be found in surface body water, discharged from a waste treatment plant
22. this is how sludge is disposed of, after this process, it can be used as fertilizer
23. Water this was sprayed on the Exxon Valdez spill in hopes of cleaning it. While it was effective, it killed a lot of wildlife.
24. sets national standards for safe drinking water.
25. creates Mercury, Lead, and Arsenic

1. is an example of a phthalate
2. Bacteria converts mercury into this, which is the toxic to animals
3. is a risk factor for manure lagoons, this can affect groundwater.
5. the reason many herbicides and pesticides are still around today even though they were phased out years ago
7. cancer causing. Arsenic can cause lung, bladder, and kidney cancer
8. this is a body of water that cannot support life due to low oxygen levels
9. e. coli, ammonia, nitrates, phosphates, endocrine disruptors are examples of…
12. the step in the water treatment process that uses uv light, ozone, and chlorine to kill bacteria
14. filters these are things that can remove Arsenic and Lead from the environment
16. Country with the highest mercury emissions
18. Horizon an oil spill caused by an underwater well explosion
20. Nervous System this is destroyed due to the toxic chemical created by bacteria and mercury