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The literature on dirty workers analysed material and symbolic aspects of work, highlighting how dirty workers deal with the stigma associated with their occupations. This approach put less attention on dirty workers who operate in the informal economy, which is a relevant category especially in some sectors, such as the urban-waste management and recycling. Drawing on a 2019–2022 qualitative study of waste pickers (WPs) in the Rio Grande do Sul state (Brazil), this article aims to understand whether and how the informal conditions interact with the symbolic and material aspects of the dirty job. First, it shows various attempts to redefine the meanings of waste pickers’ work, in a positive sense. The more articulated attempts mainly concern the more structured WPs organisations and, in some cases, go far beyond the strategies described by the traditional literature on dirty workers. Second, it emphasizes the importance of the relations between WPs organisations and public administrations in defining the effectiveness of the actions aimed at reducing the stigma associated with the WPs’ work. Together, these contributions highlight the utility of exploring the dynamics and the differences of informal dirty work in order to enrich the dirty-work approach.

The present study aims at expanding research on dehumanization in the work domain by exploring laypeople's dehumanizing perceptions towards stigmatized workers. Starting from Hughes’ (1951, Social psychology at the crossroads, Harper & Brothers, New York; Ashforth & Kreiner, 1999, Academy of Management Review, 24, 413) concept of ‘dirty work’, the present research aims to demonstrate that the different types of occupational taint elicit distinct dehumanizing images of certain occupational groups. Employing a cluster analysis, the results showed that workers in the physical taint cluster were most strongly associated with biological metaphors, workers in the social taint cluster were perceived as most similar to objects, and workers in the moral taint cluster were perceived as most similar to animals. The theoretical and practical implications are considered.

The present studies aim to expand research on dehumanization in the work domain by exploring the biologization – an unexplored form of dehumanization that involves the perception of others as infected and contagious – of physically tainted workers. By integrating the literature on biologization with that of disgust and physically dirty work, we expected that the biologization of workers would be explained by their dirty work environment and by increased feelings of disgust towards them. In Study 1, we showed that focusing on a dirty work environment (vs. on the person performing the work) increased feelings of disgust towards workers and, in turn, their biologization. Coherently, in Study 2, we found that a physically tainted occupation (vs. baseline condition) increased participants’ feelings of disgust and biological dehumanization towards the worker. In contrast, a non-physically tainted occupation (vs. baseline condition) had no effects on disgust and biologization. The theoretical and practical implications are considered.