Calculate the average mass flux (in
kgd^(-1)
) of the pesticide alachlor passing a point in a river draining a large agricultural basin. The mean concentration of pesticide s
1.0\mu gL
^(1)
and the mean flow is
50.10m^(3)S^(-1)
. Is this an accurate estimate of the total mass passing this point in a year, considering high runoff events?