Perigi Dua Air Quality Index (AQI)

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Perigi Dua, nestled within Jawa Barat province, Indonesia, occupies a relatively low-lying position at approximately -6.2656 latitude and 106.6969 longitude. This places it within the densely populated and rapidly urbanizing region surrounding Jakarta, though Perigi Dua itself maintains a smaller, more localized character with a population of around 12,859. The terrain is generally flat, typical of the northern coastal plains of Java, transitioning to more undulating landscapes further inland. Its proximity to the coast, specifically the Java Sea, introduces a maritime influence on local weather patterns and potentially contributes to salt-laden aerosols in the air. Surrounding Perigi Dua is a mosaic of agricultural land – primarily rice paddies and small-scale farming – interspersed with increasingly prevalent residential and small industrial developments. The urban-rural gradient is becoming blurred as Jakarta’s sprawl extends outwards. This proximity to larger industrial zones, coupled with local agricultural practices (including potential burning of agricultural waste), significantly impacts air quality. The lack of substantial topographical features limits natural ventilation, meaning pollutants can accumulate, particularly during periods of calm weather. The area’s position within a major transport corridor also contributes to emissions from vehicular traffic. Understanding these geographical factors is crucial for assessing and mitigating air pollution challenges in Perigi Dua.

Perigi Dua experiences a tropical monsoon climate, characterized by distinct wet and dry seasons rather than traditional four seasons. Air quality generally deteriorates during the dry season (May to September). This is due to reduced rainfall, which limits the natural cleansing of the atmosphere, and increased dust from drier agricultural lands and construction activities. Calm wind conditions during this period exacerbate pollution build-up. The peak months for poorer air quality are typically July and August. Conversely, the wet season (October to April) brings significant improvements. Heavy rainfall effectively washes pollutants from the air, and increased humidity reduces dust suspension. However, the wet season can also bring localized flooding, which can mobilize pollutants from stagnant water and increase mold spore concentrations. November and December often see a temporary dip in air quality due to increased agricultural burning post-harvest. Temperature inversions, where a layer of warm air traps cooler air below, can occur sporadically throughout the year, trapping pollutants near ground level. Sensitive groups – children, the elderly, and those with respiratory conditions – should limit strenuous outdoor activity during the dry season and be mindful of potential mold exposure during the wet season. Monitoring weather forecasts and local conditions is vital.