Title from PDF title page (viewed on June 4, 2012).
"Scottish Executive, National Assembly of Wales, Department of the Environment in Northern Ireland."
"Product code PB13264"--T.p. verso.
Addendum to guidelines for halogens and hydrogen halides in ambient air : provisional guidelines for hydrogen iodide and hydrogen fluoride for protecting human health against chronic systemic effects. Published by Dept. for Environment, Food and Rural Affairs in 2009. Publication and catalogue information, links to buy online and reader comments.