timna idan shows us around. timna idan: it's all day and into night. it's absolutely terrible. reporter: timna worries constantly about the health of her three children. their kindergarten is just a few hundred meters away from idhna. when the smoke is particularly heavy, the children get rushed back indoors. often for hours on end. many of them suffer from asthma and skin conditions. timna idan: i'm really frightened. the children are so young and they are breathing in these fumes. small children are especially vulnerable. reporter: abd el-fatah is mayor of idhna. he wants to clamp down on environmental pollution. he shows us some of the sites where the electrical waste is burned. these caves are in the wadi el sufra. it's illegal, he tells us. local authorities do their best to stop it happening, but their efforts are futile. people need the money. abd el-fatah: it makes me sad. what's happening to the land, the plants, the air. everything's being destroyed. lots of people around here have cancer. reporter: the mayor takes us with him on patrol. he has some ambitious plans. h