Question

A long line of burning agricultural waste emits 0.6 g/m-sec of particulate matter on a clear fall afternoon. The wind is blowing at 3 m/sec perpendicular to the burn line. Calculate the particulate matter air concentration 200 meters downwind of the line. (use class C stability)

Answer 1

emission= 0.6g/m-sec

0.6 g of particulate is emitted per m/s

wind blowing =3m/sec

precipitation is at 200m downwind

From class c from table 7-7 atmospheric stability

Classification 6z= 26m v=0.4km

        C(0,u,0)=2v/squrt2(Au6z)

                   = 2*300*10³/squrt2*A*3*26 =3 mg/m³

The concentration of patricle on ground downline at level v

=0.4km

                             C(0,u,0)=3mg/m³