Tambolaka Air Quality Index (AQI)

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Tambolaka, nestled in the Sumba Regency of Nusa Tenggara Timur province, Indonesia, occupies a unique geographic position on the island of Sumba. Situated at approximately -9.4333° latitude and 119.2333° longitude, the town is characterized by a rolling, hilly terrain, typical of Sumba’s interior. The elevation, while not extreme, contributes to localized weather patterns and influences air dispersion. Tambolaka isn’t directly on the coast, but is relatively close to the Savu Sea, experiencing maritime influences that moderate temperatures. The surrounding landscape is predominantly savannah grasslands and dry tropical forests, interspersed with agricultural land – primarily small-scale farming of corn, cassava, and other subsistence crops. There are no major industrial belts within Tambolaka itself, but regional agricultural practices, including seasonal burning for land clearing, contribute to particulate matter. The urban-rural gradient is quite sharp; Tambolaka represents a concentrated settlement amidst a largely rural and sparsely populated island. This means that any localized pollution sources have less opportunity for natural dispersion compared to larger, more industrialized cities. The terrain funnels winds, creating localized areas of stagnation that can trap pollutants, particularly during calmer periods. The island’s position within the Indonesian archipelago also means it’s susceptible to transboundary haze events from fires elsewhere in the region.

Tambolaka experiences a distinct wet and dry season, dictating the patterns of air quality throughout the year. The dry season, typically from May to October, is generally associated with poorer air quality. This is largely due to increased agricultural burning for land preparation, releasing significant amounts of particulate matter (PM2.5 and PM10) into the atmosphere. Strong, dry winds during this period can exacerbate the spread of smoke, impacting visibility and respiratory health. November marks the transition, with sporadic rainfall offering temporary relief. The wet season, from November to April, usually brings improved air quality as rainfall effectively washes pollutants from the air. However, even during the wet season, localized sources like dust from unpaved roads and vehicle emissions remain concerns. February and March often see the heaviest rainfall, providing the cleanest air. Temperature inversions, where a layer of warm air traps cooler air below, can occur during calmer nights, particularly in the dry season, concentrating pollutants near ground level. Sensitive groups – children, the elderly, and those with respiratory conditions – should limit outdoor activity during peak burning periods in the dry season (June-September) and monitor their health closely. Fog can also form during the transition months, potentially trapping pollutants.