Survey of experiences of inhabitants of four locations confronted with serious soil pollution. Evaluation of neighbourhood / perceived risks of pollution / trust in solution / influence of ( possible ) soil pollution on daily life / problems / coping / fear / anger / participation in organizations of inhabitants and actions / evaluation of municipal and national government activities / information by government / help requested or received / medical check requested or received / physical complaints / evaluation of inhabitants organization. Background variables: basic characteristics/ residence/ housing situation/ household characteristics/ occupation/employment/ education/ social class