Two Jiangsu province chemical plants linked to an increase in cancer in local residents are resisting calls to relocate or curb their pollution output.

Hou Yizhong, 59, from the Yizheng Environment Protection Bureau (EPB), has fought for several years to have the Yangzhou Chemical Industry Park in Yizheng city relocated.

He said the municipal government was ignoring calls for proper action to be taken against the park and was "sacrificing people's health" for economic progress.