The actual contribution of the cement sector to dioxin emissions remains controversial as the science of measuring these emissions is rather nascent (WBCSD 2002). For example, the EU Dioxin Inventory and the Australian Emissions Inventory measured dioxin emission factors that ranged by orders of magnitude (WBCSD 2002). In general, the US attributes a greater share of total dioxin emissions to the cement sector than do other countries such as Australia and those in the EU. The difference is largely due to divergent approaches to monitoring cement kiln emissions (WBCSD 2002). .
