Hexamethylene Diisocyanate Emissions 1999

58% Overhead Traveling Cranes, Hoists, and Monorail Systems Production

8% Industrial Organic Chemicals Production

12% Auto & Light Duty Truck (Surface Coating)

10% Other Categories (64 categories)

2% Boat Manufacturing

2% Aerospace Industries

8% Miscellaneous Metal Parts & Products (Surface Coating)