Ruth Mcauley told an employment tribunal it would have cost thousands to carry out improvements to working conditions she complained about and that it was far easier just to get rid of her.
Ms Mcauley, who is claiming unfair dismissal, said she was told she was being redeployed after developing `darkroom disease' through exposure to chemicals used in x-rays.
But she said her department at the Pendlebury and Booth Hall Children's Hospital was to become digital, making the use of chemicals unnecessary.
She told the hearing in Manchester that she was not offered alternative jobs she was capable of but was sent job bulletins for unsuitable positions.
Ms Mcauley, from New Zealand, had a work permit which only allowed her to work as a radiographer but one of the vacancies was as a risk manager.
She said details of one post that would have been appropriate was kept from her and she only found out about it after the applications deadline passed.
Ms Mcauley told the tribunal: "I was victimised for identifying inadequacies in a dangerous working environment."
Earlier, Ms Mcauley said no risk assessment of her situation as a breast-feeding mother had been carried out on her return to work following maternity leave in March 2006.
Exposure to darkroom chemicals had caused symptoms including a metallic taste in her mouth, sore throat and eyes, a blocked and runny nose, and overwhelming fatigue.
Ms Mcauley said she had been anxious about the effect on her son Jack, through breast-feeding, and the complaint had left her suffering a reaction to a range of everyday substances including perfumes, paint, cleaning products, shampoos and air fresheners.
Central Manchester and Manchester Children's University Hospitals Trust, which denies the allegations, said it was left with no option but to dismiss her because she was incapable of doing her job.
Proceeding
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