A facility emits $18gS\frac{O_2}{s}$ at an effective height of $60m.$

On a cloudy night, an anemometer at a height of $10m$ above ground measures the wind speed

at $3\mathrm{.}2\frac{m}{s}.$

Predict the ground$-$level $S{O}_2$ concentration $0\mathrm{.}4km$ directly downwind.

What does the plume look like? Sketch a plot.

What would the plume look like if there were an inversion layer at an elevation of

$100m?$ Sketch a plot.