ANALYSIS AND PROGNOSIS OF TASHKENT CITY ATMOSPHERIC AIR QUALITY BASED ON OPEN DATA AND VISUALIZATION THROUGH AN INTERACTIVE DASHBOARD

Abstract

This article presents an analysis of atmospheric air quality in Tashkent city over 2022—2025 based on data from the open data portal (opendata.tashkent.uz). More than 257,000 observations collected from 10 OXUS-WS automatic air quality monitoring stations across the city were used for the analysis. The data were statistically processed using the R programming language, and an interactive visualization was developed in the Shiny Dashboard format. The results show that the city's mean Air Quality Index (AQI) is 84.1, with 52.6% of observations classified as "Moderate", 20.3% as "Good", and 14.7% as "Unhealthy". Seasonal analysis confirmed the highest pollution levels in winter (January, AQI 124), with a marked decline in summer (July, AQI 58). Daily cycle analysis revealed elevated AQI in the morning hours and evening, with a minimum around midday. This approach demonstrates the potential of information technologies for monitoring air pollution and informing the public in Uzbekistan.