Environmental consequences of various materials in utility poles - A life cycle analysis
M Erlandsson, K Ödeen, M-L Edlund
A model for environmental life cycle analysis, LCA, has been created to compare environmental impact from transmission poles, made alternatively of concrete, steel, aluminium and pine wood treated with CCA type B or creosote. The main pollution sources and energy use are included in the LCA. One pole size, 12 meters long, is presented in the study, a so called "45 kV" pole. Poles of different materials can be divided into different groups considering different types of pollution. The use of poles made of concrete, steel and aluminium leads mainly to emission to the air, while treated wood mainly leaches preservatives during the operation and service phase. It is, by the knowledge we have today hard to compare these two types of discharge.