Airborne asbestos dust and particles, such as those from sprayed asbestos slurry, asbestos-coated ventilating ducts, and certain other applications of asbestos are known to produce irreversible lung damage and bronchogenic carcinoma. One American of every four dying in urban areas of the United States has asbestos particles or dust in his or her lungs. The nature of this problem is such as to constitute a hazard to the public health and safety, and should be brought under appropriate regulation.