Experts believe the recent cases may be only the tip of the iceberg as 30 years of rapid industrialisation under often poor local governance has created toxic sites all over the country.

• 专家们认为，由于地方治理水平往往较低，30年来的快速工业化进程，已导致有毒场所遍布全国各地，近期发生的事件可能只是冰山一角。