© 2018, CPWR – The Center for Construction Research and Training. All rights reserved.
This publication was made possible by grant number OH009762 from the National Institute for Occupational Safety and Health
(NIOSH). The contents are solely the responsibility of the authors and do not necessarily represent the official views of NIOSH.
CPWR – the research and training arm of NABTU – is uniquely situated to serve workers, contractors, and the scientific community.
A core function of CPWR’s work is to improve safety and health in the construction industry. This volume is part of that effort.
To obtain permission to use portions of this book, contact:
CPWR – The Center for Construction Research and Training
8484 Georgia Ave.
Silver Spring, MD 20910
Address correspondence to: Xiuwen (Sue) Dong, Dr.P.H., at [email protected].