| 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 | 2009-06-05 | 82366 | 4733 |
| Hourly SO2, NOy and CO values as measured by gas analyzers. | hourly_gas_2009 | 2009-06-09 | 19080 | 118 |
| hourly_gas_2008 | 2009-01-01 | 32880 | 228 |
| 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 | 2009-05-25 | 290304 | 7497 |
| metdata_2008 | 2009-04-24 | 744192 | 15517 |
| metdata_2007 | 2008-09-29 | 755184 | 14768 |
| metdata_2006 | 2007-12-04 | 750600 | 17625 |
| metdata_2005 | 2007-11-15 | 751152 | 17603 |
| metdata_2004 | 2007-04-03 | 762697 | 19373 |
| metdata_2003 | 2005-08-04 | 759096 | 21708 |
| metdata_2002 | 2004-10-27 | 734664 | 20831 |
| metdata_2001 | 2004-11-03 | 707424 | 19547 |
| metdata_2000 | 2004-11-03 | 702072 | 19294 |
| metdata_1999 | 2004-11-03 | 694968 | 19304 |
| metdata_1998 | 2004-11-03 | 672408 | 18813 |
| 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 | 2004-10-27 | 209640 | 4695 |
| 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 | 2009-04-15 | 738074 | 32305 |
| model_output_2007 | 2009-04-15 | 752686 | 30446 |
| 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 | 2009-04-15 | 74027 | 7598 |
| Hourly ozone concentration data. | ozone_2009 | 2009-05-24 | 288288 | 1715 |
| ozone_2008 | 2009-04-24 | 744192 | 3354 |
| ozone_2007 | 2008-09-29 | 755184 | 3083 |
| ozone_2006 | 2007-12-04 | 750600 | 2979 |
| ozone_2005 | 2007-11-15 | 751152 | 2945 |
| ozone_2004 | 2007-04-03 | 762697 | 2974 |
| ozone_2003 | 2005-08-04 | 759096 | 2982 |
| ozone_2002 | 2004-10-27 | 734664 | 2899 |
| ozone_2001 | 2004-11-03 | 707424 | 2774 |
| ozone_2000 | 2004-11-03 | 702072 | 2752 |
| ozone_1999 | 2004-11-03 | 694968 | 2750 |
| ozone_1998 | 2004-11-03 | 672408 | 2671 |
| 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 | 2004-10-27 | 209640 | 864 |
| ozone_1987 | 2004-10-27 | 70224 | 285 |
| Daily maximum of rolling 8-hour average ambient concentration, calculated according to 40CFR Part58. | ozone_8hr_dmax | 2009-06-01 | 308380 | 1744 |
| 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 | 2008-11-03 | 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 | 2008-07-29 | 1431 | 39 |
| 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 |
| Nephelometer data (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 |