| Lau | Virginia | Advanced Project Advisor | Planning and Research | Exposure Assessment & Emissions Inventory | 749-4696 | vlau |
| Lawton | John | Air Quality Inspector II | Compliance and Enforcement | Compliance Assistance | 749-4979 | jlawton |
| Lee | Carol | Senior Air Quality Engineer | Engineering | Engineering Projects | 749-4689 | clee |
| Lee | Divina | Air Quality Inspector II | Compliance and Enforcement | Compliance Assurance | 749-4979 | dlee |
| Lee | Tracy | Senior Air Quality Inspector | Compliance and Enforcement | Compliance Assurance | 749-4699 | tracylee |
| Lee | Wayne | Senior Air Quality Inspector | Compliance and Enforcement | Enforcement | 749-4757 | wlee |
| Leong | Pamela | Supervising Air Quality Engineer | Engineering | Engineering Projects | 749-5186 | pleong |
| Leung | May | Air Quality Permit Technician II | Engineering | Permit Evaluation | 749-4729 | mleung |
| Lew | Noriko | Supervising Air Quality Inspector | Compliance and Enforcement | Compliance Assurance | 749-4793 | nlew |
| Lew | Richard | Air Quality Program Manager | Compliance and Enforcement | Compliance Assurance | 749-4755 | rlew |
| Li | Julius | Air Quality Instrument Specialist I | Technical Services | Air Monitoring | 749-4957 | jli |
| Lim | Jeannette | Supervising Air Quality Inspector | Compliance and Enforcement | Compliance Assurance | 749-4981 | jlim |
| Lipari | Gary | Air Quality Inspector II | Compliance and Enforcement | Enforcement | 749-4979 | glipari |
| Lips | Harold | Principal Air Quality Engineer | Engineering | Permit Systems | 749-4743 | hlips |
| Lundquist | Jane | Principal Air Quality Engineer | Engineering | Toxic Evaluation | 749-4675 | jlundquist |
| Lusher | Brian | Senior Air Quality Engineer | Engineering | Engineering Projects | 749-4623 | blusher |