This line chart tracks sulfur dioxide (SO₂) levels across three Israeli cities—Beersheva, Givatayim, and Karmiel—over a 24-hour period, using time on the x-axis and pollutant concentration on the y-axis. Each city is drawn as a separate colored line, with smooth transitions and animated updates as the time steps progress. The data shows clear inter-city variation: Beersheva hovers near zero most of the day, Givatayim displays periodic spikes (notably around 1:50–2:05), and Karmiel shows a generally higher, more fluctuating profile with occasional negative readings. The visualization uses SVG elements and D3 transitions to animate changes over time, making it easy to compare air-quality patterns across the three cities.