| 100% | SMOG | 4 | Pollution that reduces visibility |
| 72% | WHITEOUTS | 9 | Blizzards that reduce visibility |
| 69% | SMOG | 4 | Pollution that hinders visibility |
| 66% | SANDSTORM | 9 | Desert hazard that reduces visibility |
| 66% | FOGS | 4 | Thick mists that reduce visibility |
| 63% | MURK | 4 | Thick mist that reduces visibility (rhymes with "lurk") |
| 61% | SMOG | 4 | Visibility reducing pollution |
| 59% | SMOG | 4 | Air pollution that limits visibility |
| 54% | SMOGS | 5 | Pollution problems that affects visibility |
| 54% | SMOGS | 5 | Pollution problems that affect visibility |
| 50% | PUBLIC | 6 | ___ transport, eco-friendly option that saves fuel and reduces air pollution |
| 45% | SMOG | 4 | Pollution that smokestacks contribute to |
| 44% | SHORTENER | 9 | Agent that reduces |
| 44% | SHORTENER | 9 | Something that reduces |
| 44% | SMOG | 4 | Pollution that may sting the eyes |
| 44% | SMOG | 4 | Pollution that car emissions contribute to |
| 43% | STATIN | 6 | Drug that reduces cholesterol |
| 43% | LASERPEEL | 9 | Treatment that reduces wrinkles |
| 43% | ANORECTIC | 9 | Medicine that reduces appetite |
| 43% | SWIMCAP | 7 | Accessory that reduces drag |
| 43% | SMOG | 4 | Pollution that affects the Air Quality Index |
| 42% | HEDGE | 5 | Betting strategy that reduces risk |
| 42% | ANTI | 4 | ___-inflammatory (drug that reduces swelling) |
| 42% | SATINPILLOWCASE | 15 | Bedding option that reduces breakage |
| 42% | ICE | 3 | Cold stuff that reduces swelling |
| 42% | ANTI | 4 | __-inflammatory (drug that reduces swelling) |
| 42% | FOGS | 4 | Cloudy morning phenomena that could reduce visibility on the road |
| 42% | SMOG | 4 | Pollution that factors in the Air Quality Index |
| 42% | SMOG | 4 | Pollution that often obscures the L.A. skyline |
| 42% | SMOG | 4 | Pollution that can be caused by factory smokestacks |