ENVIRONMENTAL STRESSORS
Four types of environmental stressor have general been identified: (1) cataclysmic events, e.g. geo- graphical hazards: (2) ambient stressors, e.g. air and water pollution: (3) stressful life events, e.g. death in the family; and (4) daily hassles, e.g. noisy neigh- bours. The impacts of physical and social these stressors on city life are considered next, first with reference to a range of physical environmental stressors and then by examining a number of socio- cultural influences on urban behaviour.