| Description | Table Name | Last Update | Records | Size (Kb) |
| Weekly ambient concentrations of SO2 and HNO3 gases, and SO4, NO3, NH4 and base cation concentrations for particles as measured by open-face filter packs. | drychem | 2009-09-28 | 83662 | 4826 |
| Hourly SO2, NOy and CO values as measured by gas analyzers. | hourly_gas_2009 | 2009-11-02 | 36480 | 245 |
| hourly_gas_2008 | 2009-09-29 | 33000 | 234 |
| Leaf angle data used as input to the MLM model. | leaf_angle | 2004-10-27 | 9 | 1 |
| Hourly meteorological and ozone concentration data. | metdata_2009 | 2009-11-02 | 612864 | 17691 |
| metdata_2008 | 2009-08-03 | 744192 | 15689 |
| metdata_2007 | 2009-07-29 | 755184 | 14708 |
| metdata_2006 | 2009-02-12 | 750600 | 14543 |
| metdata_2005 | 2009-02-12 | 751152 | 14579 |
| metdata_2004 | 2009-02-12 | 762697 | 15885 |
| metdata_2003 | 2009-02-12 | 759096 | 17579 |
| metdata_2002 | 2009-02-12 | 734664 | 16994 |
| metdata_2001 | 2009-02-12 | 707424 | 16009 |
| metdata_2000 | 2004-11-03 | 702072 | 19294 |
| metdata_1999 | 2009-02-12 | 694968 | 15848 |
| metdata_1998 | 2009-02-12 | 672408 | 15482 |
| metdata_1997 | 2004-11-03 | 621216 | 17696 |
| metdata_1996 | 2004-10-27 | 606840 | 13658 |
| metdata_1995 | 2004-10-27 | 554256 | 14731 |
| metdata_1994 | 2004-10-27 | 476784 | 14276 |
| metdata_1993 | 2004-10-27 | 451944 | 13601 |
| metdata_1992 | 2004-10-27 | 478704 | 14445 |
| metdata_1991 | 2004-10-27 | 481800 | 1 |
| metdata_1990 | 2004-10-27 | 467952 | 12442 |
| metdata_1989 | 2004-10-27 | 425304 | 11060 |
| metdata_1988 | 2009-02-12 | 209640 | 4610 |
| metdata_1987 | 2004-10-27 | 70224 | 1247 |
| Multi Layer Model (MLM) output providing hourly estimates for concentration, dry deposition velocity, and dry deposition flux. | model_output_2008 | 2009-08-12 | 736814 | 30555 |
| model_output_2007 | 2009-08-12 | 751912 | 29395 |
| model_output_2006 | 2009-04-15 | 748608 | 30399 |
| model_output_2005 | 2009-04-15 | 743038 | 29372 |
| model_output_2004 | 2009-04-15 | 758123 | 32137 |
| model_output_2003 | 2009-04-15 | 759087 | 31719 |
| model_output_2002 | 2009-04-15 | 734051 | 32662 |
| model_output_2001 | 2009-04-15 | 705747 | 31025 |
| model_output_2000 | 2009-04-15 | 695416 | 29022 |
| model_output_1999 | 2009-04-15 | 686208 | 22986 |
| model_output_1998 | 2009-04-15 | 634973 | 20872 |
| model_output_1997 | 2009-04-15 | 621134 | 21116 |
| model_output_1996 | 2009-04-15 | 605598 | 14904 |
| model_output_1995 | 2009-04-15 | 547799 | 16782 |
| model_output_1994 | 2009-04-15 | 468199 | 16148 |
| model_output_1993 | 2009-04-15 | 450903 | 16244 |
| model_output_1992 | 2009-04-15 | 478109 | 17099 |
| model_output_1991 | 2009-04-15 | 481800 | 15628 |
| model_output_1990 | 2009-04-15 | 465015 | 15428 |
| model_output_1989 | 2009-04-15 | 425015 | 15900 |
| model_output_1988 | 2009-04-15 | 208617 | 5883 |
| model_output_1987 | 2009-04-15 | 69135 | 1718 |
| Aggregated Multi Layer Model (MLM) output providing annual estimates for concentration, dry deposition velocity, and dry deposition flux. | model_output_annual | 2009-04-15 | 1509 | 289 |
| Aggregated Multi Layer Model (MLM) output providing seasonal estimates for concentration, dry deposition velocity, and dry deposition flux. | model_output_season | 2009-04-15 | 5818 | 972 |
| Aggregated Multi Layer Model (MLM) output providing weekly estimates for concentration, dry deposition velocity, and dry deposition flux. | model_output_week | 2009-09-07 | 74027 | 7597 |
| Hourly ozone concentration data. | ozone_2009 | 2009-11-01 | 608832 | 3847 |
| ozone_2008 | 2009-08-03 | 744192 | 3268 |
| ozone_2007 | 2009-07-29 | 755184 | 3179 |
| ozone_2006 | 2009-02-12 | 750600 | 3160 |
| ozone_2005 | 2009-02-12 | 751152 | 3158 |
| ozone_2004 | 2009-02-12 | 762697 | 3204 |
| ozone_2003 | 2009-02-12 | 759096 | 3013 |
| ozone_2002 | 2009-02-12 | 734664 | 2899 |
| ozone_2001 | 2009-02-12 | 707424 | 2778 |
| ozone_2000 | 2004-11-03 | 702072 | 2752 |
| ozone_1999 | 2009-02-12 | 694968 | 2748 |
| ozone_1998 | 2009-02-12 | 672408 | 2668 |
| ozone_1997 | 2004-11-03 | 621216 | 2473 |
| ozone_1996 | 2004-10-27 | 606840 | 2231 |
| ozone_1995 | 2004-10-27 | 554256 | 2123 |
| ozone_1994 | 2004-10-27 | 476784 | 1932 |
| ozone_1993 | 2004-10-27 | 451944 | 1835 |
| ozone_1992 | 2004-10-27 | 478704 | 1944 |
| ozone_1991 | 2004-10-27 | 481800 | 1969 |
| ozone_1990 | 2004-10-27 | 467952 | 1914 |
| ozone_1989 | 2004-10-27 | 425304 | 1739 |
| ozone_1988 | 2009-02-12 | 209640 | 860 |
| ozone_1987 | 2004-10-27 | 70224 | 285 |
| Daily maximum of rolling 8-hour average ambient concentration, calculated according to 40CFR Part58. | ozone_8hr_dmax | 2009-10-29 | 319545 | 1903 |
| Plant types and coefficients used as input to the MLM model. | plant | 2004-11-02 | 84 | 2 |
| Canopy data used as input to the MLM model. | plant_profile | 2004-10-27 | 63 | 1 |
| Geographic location and operating information for sites. | site | 2009-10-29 | 131 | 8 |
| Plant leaf out periods for sites used as input to the MLM model. | site_plant_detail | 2007-11-16 | 3766 | 18 |
| Plant coverage for sites used as input to the MLM model. | site_plant_summary | 2007-11-16 | 478 | 4 |
| Total annual deposition at CASTNET sites using MODEL_OUTPUT_ANNUAL as the source of dry deposition and WETDEP (interpolated NADP/NTN) as the source of wet deposition. | total_deposition | 2009-08-13 | 1509 | 41 |
| Chemical speciation concentration data from aerosol filter packs at local conditions from October 1993 to December 2001. This table is no longer updated. | vischem | 2004-11-03 | 4248 | 800 |
| Light scattering measurements from nephelometers (conforms to IMPROVE network standards) from October 1993 to June 2002. This table is no longer updated. | visneph | 2004-11-02 | 171576 | 2747 |
| Weekly wet deposition concentrations and sampling information from January 1989 - February 1999. This table is no longer updated. | wetchem | 2004-11-03 | 8774 | 597 |