Fire Hazard - Description of the chemical's fire hazards (such as flammability, explosion risk, or byproducts that may evolve if the chemical is burned). Health Hazard - Description of the chemical's health hazards (such as toxicity, flammability, or corrosivity). Reactivity Profile - Description of the chemical's potential reactivity with other chemicals, air, and water. Also includes any other intrinsic reactive hazards (such as polymerizable or peroxidizable). Reactive Groups - List of reactive groups that the chemical is assigned to, based on its known chemistry. Reactive groups are categories of chemicals that react in similar ways because their chemical structures are similar. Reactive groups are used to predict reactivity when you add a chemical to MyChemicals.
1 Public health model(PHM) â¢ A model that addresses health or social problems in a comprehensive way. â¢ 2  It considers human factors, characteristics of the source of harm, and the environment, identifies causes and suggests possible interventions.
Public health is the science of protecting and improving the health of families and communities through promotion of healthy lifestyles, research for disease and injury prevention and detection and control of infectious diseases.