- aerobic [adj] - exercise requiring oxygen
- laps [n] - swimming the length of a pool one time
- urine [n] - liquid human waste (pee)
- artificial sweetener [n] - a manmade sugar substitute
- recreational waters [n] - pools, hot tubs
- human waste [n] - human urine (pee) and feces (shit)
- one part per trillion [exp] - 1 in 1,000,000,000,000
- taboo [adj] - an uncomfortable of forbidden subject
- concentration [n] - percentage of volume
- diluted [adj] - made thinner or weaker by adding water
- quantify [v] - measure
- implications [n] - effects
- sterile [adj] - clean / no bacteria
- inherent [adj] - existing in something
- compound [n] - made of several elements
- disinfection [n] - remove bacteria
- chlorine [n] - a chemical used to clean pools
- byproducts [n] - secondary product
- volatile [adj] - a substance that changes quickly (dangerously)
- irritation [n] - pain / discomfort
- asthma [n] - a lung condition making breathing difficult
- bottom line [n] - conclusion
- reiterate [v] - restate / say again
- outweigh [v] - be more important than
[n] - noun, [v] - verb, [adj] - adjective, [exp] - expression