Alistair Webster, prosecuting, told the jury: "Until she was instrumental in its cancellation, there had been a contract, which ensured that the necessary tests were carried out on the air conditioning system and that it was kept - by chemicals dosing and cleaning - in a safe condition".
The nature of sludge is dependent on the source water quality and the chemicals dosed and account for a high level of WTR variability (Table 2).
Risk characterisation of human exposure to chemicals requires information on the intrinsic toxic (hazardous) properties of the chemical, dose response of effects for the critical endpoints and exposure of the population.
Experimental conditions with the same chemical dose and time were likely to cluster together.
Although the upper limit of chemical dose ranges were designed to be one-half the published acute oral LD50, lethality was observed within the dose range used for the dinitrotoluenes.
In separate experiments, the relationship of HAC loss to chemical dose was investigated.
This chemical dose was chosen to be relevant to typical dietary exposure in humans.
As the name indicates, the chemical dose that causes no adverse effect is selected for further computation of the risk.
Given that GSH conjugation happens at any chemical dose, this hypothesis is relevant even at exposures below the high doses that cause toxicologic responses.
However, the chemical dose in the serum actually suggests a longer withdrawal period of 30 and 21 days for meat and milk, respectively [ 32].
