$3.$ A small$-$scale enterprise which makes rubber$-$based products has been burning waste in its backyard. level. The measured concentration of PM$10$ being emitted is

Assume the burning is done at the ground

$80$ g$/$s$.$ The wind speed at ground level is $2$ m$/$s$.$ It is a clear summer day with the sun nearly overhead a$.$ Write the equation for finding the concentration of pollutant due to the emission of this stationary

point source $($for this condition$),$ explaining the terms.

b$.$ Estimate the ground level PM$10$ concentration directly downwind at a distance of $2$ km$.$

c$.$ Estimate the ground level PM$10$ concentration at a point located $1$ km downwind and $0\mathrm{.}2$ km off the downwind axis.