Example sentences of "[noun pl] had been expose to " in BNC.

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1 Examination of records available on smoking related activity in the control schools indicated that pupils in half of the schools had been exposed to some incidental and unplanned smoking education through events such as No Smoking Day or through associated teaching in home economics or biology .
2 People living in the areas had been exposed to three times the acceptable level of ionising radiation .
3 She found that , the longer the rats had been exposed to the enriched environment , the less hippocampal LTP could subsequently be induced .
4 Sixty six of the vaccine packages had been exposed to temperatures >10°C .
5 Though clearly , whatever the logic of the situation , Hitler could still rely upon substantial bonds of undying allegiance among his most loyal supporters , especially of course those who for years had been exposed to the full brunt of Party organization and indoctrination , there seems little doubt that the mass base of unquestioned trust in Hitler was already in 1942 beginning to give way .
6 The researchers found that at three weeks of age , 39% of the infants had been exposed to passive smoking from any source .
7 It is made clear that the boy was exposed to serious danger by his father 's irresponsibility and by his sisters ' departure : but his sisters had been exposed to this father too , and had had to defend themselves .
8 It also states that the findings do not support or detract from the Gardner report in 1990 , which found that cancers occurred in children whose fathers had been exposed to high levels of radiation before the child was conceived .
9 The original study , carried out by the late Professor Martin Gardner of Southampton University , found that there was between a fivefold and eightfold risk of cancer in children if their fathers had been exposed to significant levels of radiation .
10 The new study , carried out by the Cancer Research Campaign 's Epidemiology Unit at Oxford University , found no difference in cancer rates between children whose fathers had been exposed to radiation and those whose fathers had not .
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