Informal-sector occupational hazards: an observational workplace assessment of the traditional medicine trade in South Africa

Respiratory outcomes among plant processing workers in Durban, South Africa

Plant products used by informal traditional medicine traders go through various methods of manual processing to yield a final single or multi-concoction product; however, the prevalence of potentially associated respiratory outcomes has yet to be established. The aim of this study was to describe respiratory outcomes associated with processing plants among informal traditional medicine traders. Questionnaires related to the preparation of plant products and respiratory outcomes were administered to study participants by trained researchers. Of the 216 traders, nocturnal cough, nasal allergies and waking with a feeling of tightness in the chest were the most frequently cited respiratory outcomes (43, 35 and 22%, respectively). The study highlighted the burden of respiratory outcomes among traders who process plant products and the need for targeted workplace interventions.

Ergonomic Risk Assessment during an Informal Hand-Made Cookware Operation: Extending an Existing Model

The work conducted in the informal sector is highly variable within and between days. Characterizing ergonomic exposures remains a challenge because of unstructured work settings and schedules. The existing ergonomic risk assessment tools have been widely used in formal work settings with a narrow range of exposure, and for predefined tasks that primarily constitute a daily routine. There is limited information in the literature on how they have been applied in informal workplaces. The aim of this study was to extend an existing risk assessment tool and to evaluate the applicability of the extended tool by assessing ergonomic exposure related to hand-made cookware operations. Eighteen hand-made cookware makers were recruited from six sites. A walkthrough risk assessment questionnaire was used to collect information on workers, tasks, work stations and workplace structures. The Rapid Upper Limb Assessment (RULA) screening tool was extended by including duration and vibration. An action priority matrix was used to guide intervention. According to the RULA action levels, the workers required investigation and changes soon, and immediate investigation and changes. The use of an action priority matrix was appropriate, and indicated that all the workers assessed were within the high to very high exposure domain and required immediate corrective measures. The methodology used proved to be an effective and reliable strategy for identifying ergonomic exposure among hand-made cookware makers.