The study aimed to assess the soil mineral content in Mandaluyong City and its implications for agriculture and the environment. Soil tests were conducted to determine the presence and level of nitrogen, phosphorus, and potassium, addressing the issue of carbon dioxide pollution and the potential for urban agriculture in the city. The research process involved ocular inspections, soil sample collection, and testing using a Soil Test Kit (STK). The findings of the study are expected to provide valuable information for urban agriculture and environmental management in Mandaluyong City.