CRITICAL LOADS BACKGROUND
Access background information and a step-by-step guide for using critical loads for each process below.
LEARN BASIC CONCEPTS | |
CRITICAL LOADS FOR RESOURCE PROTECTION | provides information on what CLs are, how they are developed, how they are used (NPS) |
CRITICAL LOADS FLYER (NADP) | provides information on CLs for evaluating effects of air pollution on terrestrial and aquatic ecosystems |
CLAD (Critical Loads of Atmospheric Deposition Science Committee) | provides CL definitions, background information, and resources |
CL VIDEOS | |
CLAD VIDEOS | videos on CLs for lichens, herbaceous plants, trees, and surface water |
CRITICAL LOAD SEMINAR SERIES | webinars on CL and deposition, lichens, trees, herbaceous plants, aquatic resources, mycorrhizal fungi, used by federal agencies |
FIND REFERENCE LITERATURE | |
CLAD REFERENCES | this reference list includes published articles and reports that document North American critical loads |
EPA HERO REFERENCES | the Health and Environmental Research Online database (HERO) is used by EPA to develop reports that support critical agency decision-making for chemical regulation |