This visualization compares hourly sulfur dioxide (SO2) concentrations across three Israeli cities—Beersheva, Givatayim, and Karmiel—using a multi-line time series. The chart animates through a 24-hour cycle, with each city drawn as a distinct colored line that updates as the data progresses. The data is sourced from a gist by BenHeubl and rendered with D3 v3 using SVG and animation. The visualization highlights how air quality varies dramatically between cities: Karmiel consistently shows the highest SO2 levels (often around 3–4 ppm), Givatayim shows a sharp spike reaching 8.1 ppm around 2:05, while Beersheva remains near zero throughout most of the day, with occasional small peaks. The animation reveals temporal patterns and stark contrasts in pollution across the three Israeli cities.