§ Mr. WrayTo ask the Secretary of State for Health how many cases of(a) botulism, (b) salmonella enteridais, (c) salmonella typhimurium and (d) other types of food poisoning had been detected or reported for each month since Janaury.
§ Mr. Mellor[holding answer 3 July 1989]: The information requested is given in the tables. Laboratory reports of campylobacter infections are collated weekly, and four-weekly totals to 16 June are given, but it is not known how many of these infections are food-borne.
factors such as tides, currents, depth of water and prevailing winds. The average length of long sea outfalls is around 2 km. However, local conditions may mean that they can be longer or shorter than this. Relevant studies of the hydrographical conditions near the Royal Portbury dock indicated that a 900 m outfall would be the most appropriate length. Accordingly, a discharge consent for such an outfall was granted by Her Majesty's inspectorate of pollution in July 1987.