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PurposeThe aim of this paper is to present the literature which identifies the characteristics of small enterprises and outlines the opportunities to utilise them in working with small businesses to prevent and reduce exposures to hazardous substances.Design/methodology/approachA search of a variety of data sources, including Medline, PubMed, Web of Science, Google Scholar, was conducted which combined the keyword search terms “small business”, “small enterprise”, “management”, “health and safety management”, “hazardous substances”, “hazardous chemicals”, “management of hazardous substances”. High quality studies were selected and combined with studies known to the authors.FindingsA strong body of evidence exists which shows that the management of OSH in small enterprises has been extensively reviewed and the most recurring theme is the identification of problems and challenges. A growing body of literature also confirms that models for chemical risk management and social responsibility issues can play a key role in managing hazardous chemical exposures in small enterprises. Furthermore, studies have shown that there are certain characteristics of small business that potentially provide positive opportunities for the implementation of preventive interventions.Originality/valueThe paper identifies these characteristics and features and suggests these can be effectively utilised in the design and development of interventions to prevent and reduce exposures to hazardous substances in small enterprises. Few interventions, however, have been developed utilising these positive characteristics.

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Purpose -The purpose of this paper is to focus on the development of a health and safety (HS) representative role typology that demonstrates how representatives enact their roles and improve occupational health and safety (OHS) under New Zealand law. It aims to consider the factors that influence the roles that HS representatives' assume. Design/methodology/approach -This qualitative, cross-perceptual study centres on the role enactments of eight HS representatives at two metal manufacturers. Semi-structured interviews were conducted with HS representatives, managers, workers, senior managers, OHS managers and a union convenor. "Types" were differentiated by the HS representatives' purpose, activities and OHS impacts. Findings -In total, four HS representative role "types" were identified: administrators, workshop inspectors, problem solvers and craft experts. Administrators implemented and operated OHS management systems and improved OHS management. Workshop inspectors undertook compliance and monitoring roles and improved workers' attitudes towards OHS. Problem solvers found solutions to control hazards and improved production from an OHS perspective. Craft experts applied technical knowledge to influence strategic OHS decisions. Role enactment appeared to be influenced by representatives' expert power, job roles and the organisational role definition. Representatives operating under both managerial and worker defined HS representative systems, increased worker "voice" by providing an avenue to redress OHS concerns. Practical implications -Implications arise for OHS policy, HS representative training courses and organisational/managerial support. Originality/value -The paper presents a HS representative role typology distinctively based on cross-perceptual data that also provides a more holistic perspective of the HS representative role by considering representatives' purpose, role enactment and OHS impact.

This paper introduces a fundamental method which is used in appraised and forecast for project selection in Beijing Polytechnic University of P.R. China. It includes experts judgment using the principle of organizational behavior and future forecast using the idea of system dynamics for engineering projects.