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Kabalo, situated in the Tanganyika province of the Democratic Republic of the Congo at approximately -6.0500, 26.9167, is a city deeply interwoven with the landscape of the African Great Lakes region. The city rests on a relatively flat plain, though gently undulating terrain is common in the surrounding areas, at an elevation of roughly 600 meters. This places Kabalo within a transitional zone between the higher plateaus and the lower-lying areas closer to Lake Tanganyika, approximately 60km to the east. The lake exerts a significant moderating influence on the local climate, but also contributes to humidity and potential for temperature inversions. Kabalo’s urban character is defined by a relatively low-density settlement pattern, transitioning rapidly into agricultural lands dominated by subsistence farming and small-scale plantations – primarily cassava, maize, and bananas. While not a major industrial hub, local artisanal activities like brick-making and wood processing contribute to particulate matter. The urban-rural gradient is sharp, with limited infrastructure and widespread reliance on biomass fuels (wood and charcoal) for cooking and heating in both urban and peri-urban areas. This reliance, coupled with dust from unpaved roads and agricultural practices, forms the basis of Kabalo’s air quality challenges. The surrounding landscape is largely savannah woodland, prone to seasonal bushfires which further degrade air quality.

Kabalo experiences a broadly bimodal rainfall pattern, defining its ‘wet’ and ‘dry’ seasons rather than traditional four seasons. The primary wet season runs from November to April, bringing increased humidity and reduced dust resuspension, generally leading to temporarily improved air quality. However, heavy rainfall can also exacerbate runoff, carrying pollutants from agricultural lands into waterways and potentially contributing to localised air issues. The driest months, June to August, are typically when air quality is poorest. This is due to increased dust from unpaved roads, agricultural activities, and the widespread burning of biomass for cooking and heating. Temperature inversions, common during the cooler, drier months, trap pollutants near ground level. September and October represent a transitional period with fluctuating conditions. Sensitive groups – children, the elderly, and those with respiratory conditions – should limit strenuous outdoor activity during the dry season, particularly in July and August. During the wet season, while overall air quality improves, increased humidity can trigger respiratory issues in some individuals. Monitoring local fire activity is crucial, as smoke plumes can rapidly degrade air quality regardless of the season. Avoiding peak cooking times in the evening can also reduce indoor air pollution exposure.