** Source: ICAC (2005).
*** Source: USDA (2005).
**** Source: Vargas et al. (2005).
***** Source: EJF (2007).
Source: Ecoinvent (2007).
Source: Cotton Incorporated (2009) http://www.cottoninc.com/).
a World Health Organisation (WHO) toxicity class: Ia: extremely hazardous Ib: highly hazardous; II: moderately hazardous, III ¼ slightly hazardous, U ¼ Unlikely to be
hazardous.