Subject
- Health10
- Environment4
- Health services accessibility4
- Medically underserved areas4
- Air quality management3
- Climatology, Meteorology and Atmosphere3
- Boundaries2
- California. Air Quality Standards Section2
- Location2
- Medical care2
- United States. Clean Air Act2
- Air quality—Standards1
- Carbon monoxide1
- Census1
- Dental Care1
- Environmental policy1
- Health service areas1
- Hospitals1
- Households1
- Hydrogen sulfide1