Environmental Sensor Network Dashboard City Map

Treat environmental sensor network dashboard city map as a polished product design prompt for city operations teams working through urban air quality monitoring. Show sensor pins over a city map with air quality scores, trend charts, alert thresholds, and district filters. Include sensor pins, air quality scores, trend charts, alert thresholds, and district filters while keeping the product useful for city operations teams. Make the hierarchy easy to scan, with meaningful labels, realistic microcopy, responsive spacing, hover or tap states, and accessible contrast. Add empty, loading, and error states where they would naturally appear, so the interface feels like a complete UI/UX case rather than a single decorative screen.