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News Kiln demolition identified as source of toxic leak in Hunan

Kiln demolition identified as source of toxic leak in Hunan

Written by Global Cement staff 03 April 2025
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China: Authorities in the province of Hunan have identified a cement plant as the source of thallium contamination in the Leishui River following a botched demolition at the end of 2024, according to Sixth Tone news.

Yongxing County officials said that rainfall had washed thallium-laden dust from a dismantled kiln into the river. Levels peaked at 0.13μg/L, exceeding the national standard of 0.1μg/L, but have since returned to safe levels. The nearby city of Chenzhou is reportedly a hub for non-ferrous metal mining and processing, and a number of Chinese cement plants have begun to process industrial solid waste in recent years. According to Peng Yingdeng, a researcher at the Ministry of Ecology and Environment, this method is a common approach for hazardous waste disposal, but can lead to high concentrations of thallium salts in the kiln’s residue. The owner of the plant, Hunan Liantian Cement, added solid waste management to its list of businesses in September 2024.

The local government has despatched teams to apply chemical treatments to the affected areas, with water quality since returning to safe levels. Local residents’ drinking water was reportedly not affected.

Last modified on 09 April 2025
Published in Global Cement News
Tagged under
  • China
  • Hunan
  • Kiln
  • Demolition
  • toxic heavy metals
  • river
  • Pollution
  • Dust
  • industrial waste
  • Waste
  • Hunan Liangtian Cement
  • Water
  • Asia
  • GCW704
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