Technical Bulletin No. 0569: Review of Exposure Chamber Development for Use with Mature Branches of Ponderosa Pine

A project is underway at Lawrence Livermore National Laboratory to determine air pollutant effects on seedlings and mature tree branches of Pinus Ponderosa. Field experiments will be conducted at the U.S. Forest Service Tree Improvement Program Facility at Chico, California. The Chico site was selected due to the availability of suitable plant material and necessary logistical support.