Natural toxicants in food, Jenny A.Lewis and G.Roger Fenwick; polychlorinated dibenzo-ro-dioxins, polychlorinated dibenzofurans and the food chain, James R.Startin; analysis and occurrence of polycyclic aromatic hydrocarbons in food, Keith D.Bartle; food production contaminants - control and surveillance, Jonathan R.Bell and David H.Watson; toxicology and regulatory control of components of food contact plastics, Rupert Purchase; contaminants from food contact materials - analytical aspects, John Gilbert; use and regulatory control of veterinary drugs in food production, Kevin N.Woodward; analysis of veterinary drug residues in edible animal products, Martin Shepherd; determination of pesticides at low levels in drinking water, Keith M.Moore; unwanted flavours in food, David Henshall.