Original Research
Occupational & Environmental Health

Awareness on Health and Safety Among Municipal Workers on Solid Waste Collections: A Case Study in Malaysia

Background and Context

Municipal solid waste collection is an essential public service that directly impacts the environmental health and quality of life of urban populations. In Malaysia, where rapid urbanisation and economic growth have led to increasing volumes of waste generation, the workforce responsible for waste collection faces significant occupational health and safety challenges. These workers are exposed daily to a range of hazards that can adversely affect their health and wellbeing.

Malaysia generates substantial quantities of municipal solid waste, with production rates that have increased in parallel with population growth and rising consumption patterns. The management of this waste relies heavily on manual collection by municipal workers, particularly in residential areas where mechanised collection may be limited by narrow streets, high-density housing, and infrastructure constraints.

Solid waste collection workers are exposed to biological hazards from decomposing organic matter, medical waste that may be improperly disposed of in household waste, and vectors such as rodents and insects. Physical hazards include heavy lifting, repetitive motions, extreme weather exposure, and risks from traffic and falling objects. Chemical exposure may occur from household chemical waste, pesticides, and industrial contaminants in mixed waste streams. Despite these well-documented risks, research on the occupational health awareness and safety practices of Malaysian waste collection workers remains limited.

Study Design and Methodology

This study employed a case study approach to assess health and safety awareness among municipal workers involved in solid waste collection in a Malaysian local authority. Data were collected using structured questionnaires designed to evaluate workers’ knowledge of occupational hazards, their awareness of health and safety measures, their practices regarding personal protective equipment (PPE) usage, and their self-reported health symptoms.

The questionnaire addressed multiple domains of occupational health, including awareness of specific hazards encountered during waste collection, knowledge of proper waste handling techniques, understanding of the purpose and correct use of PPE, and recognition of symptoms that may indicate occupational illness. Demographic information including age, years of service, and education level was also collected to identify factors associated with awareness levels.

Principal Findings

The study identified multiple occupational hazards affecting municipal solid waste collection workers. These hazards spanned five categories: biological (exposure to pathogens, animal waste, and disease vectors), physical (manual handling injuries, heat exposure, and traffic-related risks), ergonomic (repetitive movements, awkward postures, and heavy loads), chemical (exposure to household chemical waste and decomposition gases), and psychosocial (job stress, social stigma, and irregular working hours).

Health symptoms commonly reported by workers included respiratory complaints (coughing, wheezing, and difficulty breathing), musculoskeletal problems (particularly lower back pain and upper limb pain), dermatological issues (skin rashes and irritation), and gastrointestinal symptoms (nausea and diarrhoea). The prevalence of these symptoms among the study sample underscored the occupational health burden experienced by this workforce.

Analysis of PPE usage revealed significant gaps between the availability of protective equipment and its consistent, correct use. While most workers reported having access to basic PPE items such as gloves and boots, regular and proper use of all recommended protective equipment was inconsistent. Barriers to PPE usage included discomfort in hot weather conditions, lack of training on proper use, and perceptions that PPE hindered work efficiency.

Implications for Occupational Health Policy

The findings highlight the need for enhanced occupational health and safety programmes specifically tailored to the municipal solid waste collection workforce. Such programmes should include regular health and safety training, provision and enforcement of appropriate PPE, health surveillance and monitoring, and accessible healthcare services for occupational illnesses and injuries.

In the Malaysian context, where the Occupational Safety and Health Act 1994 (Act 514) provides the legislative framework for workplace safety, these findings suggest that more attention should be directed toward the waste collection sector. While manufacturing and construction industries have traditionally received the greatest occupational health focus, the waste management sector presents equally significant risks that require systematic management.

Environmental Health Nexus

The health and safety of waste collection workers is intimately connected to broader environmental health objectives. Workers who are properly trained and equipped are more likely to handle waste safely, reducing the risk of environmental contamination, disease vector proliferation, and community health impacts. Investment in worker safety is therefore an investment in environmental public health.

Limitations

The case study design, focused on a single municipal authority, limits the generalisability of findings to other local authorities across Malaysia that may have different waste management systems, worker demographics, and organisational cultures. Self-reported health symptoms may be subject to recall bias, and the cross-sectional design cannot establish temporal relationships between exposures and health outcomes.

Significance

This study contributes to the limited but growing body of evidence on occupational health among waste collection workers in Malaysia. The findings provide a foundation for developing targeted health and safety interventions and for advocating increased attention to this essential but often overlooked workforce in occupational health policy and practice.

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