Map of the Study Locations in Lagos, Nigeria FIGURE 1
Methods
tinnitus (Shehu et al., 2020). Despite being underrepresented in the literature, these find- ings imply that itinerant workers who travel between locations, frequently in unstruc- tured or semi-structured settings, could be equally vulnerable. Furthermore, the mapping of noise expo- sure and its correlation with the perceived health effects on the community draws atten- tion to the wider ramifications of high sound levels in Lagos. There are noticeable tempo- ral differences in noise exposure between residential and commercial areas. By creat- ing spatial noise level maps and assessing related health risk indicators, our study aims to advance the knowledge of noise exposure among itinerant workers in Lagos.
CMS Bus Stop Motor Park, and Ikeja Along Motor Park), and major traffic junctions (Ajah Roundabout, Cele Junction, Iyana Ipaja Junction, Maryland Junction, Ojota Interchange, and Allen Roundabout). We selected these locations as representa- tive of the daily mobility and work-related exposures of itinerant workers who traverse marketplaces, motor parks, and traffic cor- ridors. Figure 1 depicts the study area and sampling locations. Data Collection Instruments A digital sound level meter (Class 2, IEC 61672 compliant) was used to measure noise levels, and a handheld GPS device was used to record the geographic coordinates of each
Study Area Lagos, Nigeria, is a highly urbanized and densely inhabited city with a large volume of economic activity, major traffic, and migra- tory work. We selected 20 sampling sites from three categories of high human and commercial activity to record noise expo- sure patterns pertinent to itinerant workers. Included in the 20 sites were major mar- kets (Balogun Market, Computer Village, Mile 12 Market, Alaba International Market, Oyingbo Market, Idumota Market, Oshodi Market, and Aswani Market), large motor parks (Oshodi Motor Park, Berger Motor Park, Mile 2 Motor Park, Ajah Motor Park,
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November 2026 • Journal of Environmental Health
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