Bricks are the main building blocks for much of Bangladesh since the country lies in a flood plain rich with soil ideal for brick making. These bricks produced through kilns produce air pollution in Dhaka. Some 2,000 brickworks operate illegally for short periods, often five months a year since Bangladesh is often wet due to monsoon rains. Workers are hired through middlemen who collects much of their wages. Family members of these help out through intense summers for at least 13 hours a day. Child labor is practiced, unnoticed much of the West.