| Section | Type | Size (Kb) |
| 1999 Annual Report (cover) | PDF | 220 |
| 1. CASTNet Overview | PDF | 520 |
| 2. Concentrations of Sulfur and Nitrogen Species and Cations | PDF | 3422 |
| 3. Deposition of Sulfur and Nitrogen Species | PDF | 2541 |
| 4. Ozone Concentrations | PDF | 1394 |
| 5. Fine Mass Concentrations | PDF | 1493 |
| 6. Concentrations of Trace Metals | PDF | 103 |
| 7. Quality Assurance | PDF | 297 |
| References | PDF | 74 |
| Appendix A Locationsal and Operations Characteristics of CASTNET Sites | PDF | 54 |
| Appendix B: Histograms of Differences I Weekly Deposition Velocities Between Two Versions of MLM | PDF | 29 |
| Appendix C Maps of Quarterly Average Concentrations | PDF | 3531 |
| Appendix D NADP/NTN Sites Used in the Wet Deposition Analysis | PDF | 35 |