National Park Management
Access the relevant website and a step-by-step guide for using the website.
WHAT ARE CRITICAL LOADS AND WHY DO THEY MATTER?
IDENTIFY RESOURCES AT RISK FROM N OR S AIR POLLUTION
NPS PARK AIR PROFILES
CONDITIONS AND TRENDS OF POLLUTANTS AND ECOSYSTEM HEALTH IN NPS UNITS
REPORTS ON CRITICAL LOADS AND CL EXCEEDANCES WITHIN NPS UNITS
INTERACTIVE MAPS OF CRITICAL LOADS AND EXCEEDANCES
(This website cannot be embedded)
Step-by-step instructions
This site provides access to a downloadable excel database for all CONUS NPS units, including: (1) an overall description, (2) a CL Summary, (3) metadata for the summary, (4) All CL Data, and (5) metadata for All CL Data.
1. Download the file from the “Digital Files and Links” section.
2. Open file and explore the database. The metadata sheets explain each of the columns in the dataset.