Durga, who lives in a village and cooks on a traditional chulha (earthen stove) using wood or cow dung cakes as fuel, has been experiencing severe coughing for the last three months. This could likely be due to:
1
carbon monoxide produced by burning fuel which may have been deposited in her respiratory tract
2
soot produced by burning the fuels which may have been deposited in her respiratory tract
3
smoke produced by burning fuels which may have caused her allergy
4
old age and pollution inside and outside her hut