Subject
- Health service areas10
- Structure9
- Medical care8
- Health and hygiene7
- Majlis Abū Ẓaby lil-Takhṭīṭ al-ʻUmrānī6
- Medical centers6
- Carbon monoxide5
- Location5
- Particulate nitrate5
- Sulfates5
- Air quality4
- Lead4
- Nitrogen dioxide4
- Organic compounds4
- Ozone4
- Sulfur dioxide4
- California. Air Quality Standards Section3
- Health Facilities3
- Recreation Areas3
- Apartment houses2