1.0 DCPLUS 20250314 13462700 20250314 13462700 https://www.arcgis.com/home/item.html?id=8b2a2b24603948edb985904a0a153d3d 8b2a2b24603948edb985904a0a153d3d Feature Service https://services.arcgis.com/cJ9YHowT8TU7DUyn/arcgis/rest/services/CASTNET_ozone_design_values/FeatureServer CASTNET ozone design values 2025-03-14T13:46:27 2025-03-14T13:57:07 Air United States Health CASTNET design values calculated as the 3-year average of the 4th highest daily maximum 8-hour concentration <p>CASTNET design values calculated for most recent 3-year period (2021-2023).&nbsp;</p> <p>N/A</p> -148.9676055908203 -68.26080322265625 63.723201751708984 27.849214553833008 1 8b2a2b24603948edb985904a0a153d3d https://services.arcgis.com/cJ9YHowT8TU7DUyn/arcgis/rest/services/CASTNET_ozone_design_values/FeatureServer Feature Service EPSG