Two mums depicted in the Netflix drama Toxic Town say more whistleblowers need to come forward as they push the local council for answers.
It is believed that the clearing of Corby's steelworks in the 1980s – where toxic waste was moved through the town in uncovered lorries – caused birth defects in children.
Families suspect the industrial pollution also caused childhood cancers in the area and they asked North Northamptonshire Council to reveal a list of sites where the waste was buried.
The council refused the request but said it was "committed" to responding to people's concerns.
Tracey Taylor and Maggie Mahon together spent more than a decade fighting for justice in one of the UK's largest toxic waste scandals.
The pair were portrayed in the Netflix drama by lead actresses Jodie Whittaker and Aimee Lou Wood.
They want more whistleblowers to come forward and are backing the new campaign, claiming they have seen "other clusters" of health issues "happening right now", including childhood cancers.
Solicitor Des Collins, who represented families at the High Court 16 years ago, says he has been helping 30 to 40 families.
Ms Taylor said residents in Corby should not have to "worry about the health issues of their children or grandchildren".
"How many years does this go on? How many generations has it got to affect before somebody says 'Let's sort this out once and for all'," she told the BBC.
Ms Taylor, whose daughter Shelby Anne died at four days old, said she knew of...
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