In this article, we use the recorded olis) at several observational stations in Da Nang city, employ the Cokriging interpolation method to find suitable models, then predict TSP dust concentrations at some unmeasured stations in the city. Our key contribution is finding good statistical models by several criteria, then fitting those models with high precision. | Applied the Cokriging interpolation method to survey air quality index (AQI) for dust TSP in Da Nang city