loberton creamThirdly, there are the hundreds of chemicals used during the fracking process itself. The injection of these chemicals into the ground is a well known cause of water pollution across areas affected by fracking.Last but by no means least there is air borne pollution caused by the waste water that is put into evaporation pits. The objective is to evaporate as much waste fluid before it is hauled off for processing. However, the evaporation process leads to the release of poisonous chemicals into the air. Professor Theo Colborn notes that there is ''very little information'' about the air borne pollution coming from thousands of evaporation pits which can also contaminate water supplies.