Thank you This live web event has ended. Thank you for attending. Contributors Mark Rollins Mark Rollins is an independent consultant with A-EHS, and has broad-based experience in industrial hygiene, environmental, and occupational safety. He holds both a bachelor’s and master’s degree in environmental science from the University of Massachusetts. Mark has previously taught several AIHce PDCs, is a member of the AIHA Computer Applications Committee, and served on the ANSI Z9 Ventilation Standards committee. A self-taught artist, he has been the contributing illustrator to four books, one ANSI standard, and three beer labels. Mark lives in Connecticut with his wife and two sons.