1. Environment Canada and Health Canada. Canadian Environmental Protection Act, 1999 (2001) Priority substances list assessment report. Nonylphenol and its ethoxylates
2. Warhurst AM (1995) An environmental assessment of alkylphenol ethoxylates and alkylphenols. Friends of the Earth Scotland and Friends of the Earth, Edinburgh and London
3. Directive 2003/53/EC of the European Parliament and of the Council of 18 June 2003 (2003) Amending for the 26th time council directive 76/769/EEC relating to restrictions on the marketing and use of certain dangerous substances and preparations (nonylphenol, nonylphenol ethoxylate and cement), Luxembourg
4. Canadian Council of Ministers of the Environment (2002) Canadian water quality guidelines for the protection of aquatic life; nonylphenol and its ethoxylates, Hull
5. Canadian Council of Ministers of the Environment (2002) Canadian sediment quality guidelines for the protection of aquatic life; nonylphenol and its ethoxylates, Hull