§ Mr. SimpsonTo ask the Secretary of State for Defence how many unscheduled stops there have been involving truck cargo heavy duty mark 2 vehicles since January 1994; and if he will provide a breakdown of the circumstances which resulted in these incidents.
§ Mr. SoamesBetween January 1994 and 13 March 1995 there were four occasions on which truck cargo heavy duty mark 2 vehicles were obliged to make unscheduled stops to deal with technical problems. The circumstances are set out in the table.
Plant Sulphur dioxide mg/m3 Oxides of nitrogen mg/m3 Particulates mg/m3 Hazardous waste incinerators 50(1) 350(1) 20(1) Cement kilns 750(2) Wet kilns = 1800(2) 50(3) Dry kilns = 1200 (1) To be met by 1 December 1996. (2) To be met by 1 April 1997. (3) To be met by 1 April 1998. These limits are set out in Her Majesty's inspectorate of pollution guidance notes.
So far as cement kilns are concerned, the figures in the table relate to operations where conventional coal/petroleum coke is being used as fuel. If cement kiln operations using substitute liquid fuel to replace a portion of coal/petroleum coke are authorised under the Act, then that part of the emissions that originates from the substitute fuel will be controlled to the above incinerator limits, while that part of the emissions which originates from coal/petroleum coke will be controlled to the above cement kiln limits. Taking sulphur dioxide as an example, if all of the conventional fuel is replaced with substitute fuel, then a limit of 50 mg/m3 will apply. If however, the replacement is only 30 per cent., then 30 per cent. of the emissions, those generated from the substitute fuel, will 119W be required to meet 50 mg/m3, while the rest will be required to meet 750 mg/m3.