San Roque Air Quality Index (AQI)

Loading live AQI data...

Loading weather snapshot...

Loading historical AQI trends...

San Roque, Cavite, Philippines, occupies a strategically important position within the broader Manila Metropolitan Region, nestled on the southwestern edge of the province. Its coordinates (14.4800° N, 120.9011° E) place it within a gently sloping terrain, transitioning from coastal plains towards the interior highlands of Cavite. The city’s proximity to Manila Bay, approximately 15 kilometers to the west, significantly influences its microclimate and, consequently, its air quality. The surrounding landscape is a mosaic of agricultural lands – rice paddies and vegetable farms are common – interspersed with residential areas and nascent industrial zones. This urban-rural gradient is a key factor in pollution dynamics; agricultural practices, while vital to the local economy, can contribute to particulate matter through burning and fertilizer use. The elevation, generally below 50 meters above sea level, limits dispersion of pollutants, particularly during periods of low wind. San Roque’s location within the Calabarzon region, a major industrial and economic hub, means it is indirectly affected by emissions from larger industrial belts further north. The prevailing winds, often originating from the West Philippine Sea, can carry pollutants from Manila and surrounding areas, impacting San Roque’s air quality. The presence of smaller-scale workshops and garages within the city itself also contributes to localized pollution sources, including vehicle emissions and industrial fumes. The gradual expansion of residential areas further encroaches on agricultural land, intensifying the urban footprint and altering natural ventilation patterns.

San Roque, being a tropical climate, experiences a distinct wet and dry season rather than the four traditional seasons. The dry season, typically spanning from November to May, often sees a gradual increase in air quality concerns. Reduced rainfall means fewer opportunities for atmospheric cleansing, allowing pollutants to accumulate. Temperature inversions, common during the cooler months (December-February), trap pollutants near the ground, exacerbating the issue. The months of March and April, characterized by rising temperatures and decreasing humidity, can be particularly challenging, with stagnant air conditions and increased emissions from vehicles and agricultural activities. The wet season, from June to October, brings relief through frequent rainfall, which effectively washes pollutants from the atmosphere. However, heavy rainfall can also lead to increased road traffic due to flooding, temporarily increasing vehicle emissions. Monsoon winds, particularly during July and August, can disperse pollutants, but also carry moisture and contribute to fog, which can trap pollutants in localized areas. Sensitive groups, such as children, the elderly, and individuals with respiratory conditions, should exercise caution during the dry season, particularly during periods of stagnant air. Limiting outdoor activities during the hottest parts of the day and ensuring adequate ventilation indoors are recommended. Agricultural workers should be mindful of potential exposure to pesticides and fertilizers, utilizing appropriate protective gear. The transition months (May and November) often present unpredictable air quality conditions, requiring vigilance and awareness of local weather patterns.