Liu Jianguo's research team from the School of Environment reveals the distribution, emission and environmental fate of short-chain and medium-chain chlorinated paraffins in Chinese products of international high-profile chemicals

Short-chain and medium-chain chlorinated paraffins (SCCPs and MCCPs) are a class of high-yield, environmentally persistent, bioaccumulative and potentially toxic international chemicals of high concern and emerging environmental pollutants

In order to further clarify the above problems, the research carried out a two-year national chlorinated paraffin industry chain survey and detection of the concentration of SCCPs and MCCPs in 124 typical CPs application products.

The study found that from 2018 to 2019, China's SCCPs and MCCPs produced more than 450,000 tons and 870,000 tons respectively, of which more than 80% were distributed in the PVC industry, and the environmental emissions of both reached more than 8,000 tons, and the main source of emissions was PVC ( Atmosphere), polyurethane foam (water) and rubber (soil)

Distribution, emission and environmental fate of SCCPs and MCCPs in products in China

The study comprehensively revealed the distribution status, production scale, emission inventory and environmental fate of SCCPs and MCCPs in Chinese products for the first time.

The above research results were published in Environmental Science & Technology with the title " Distribution and Emission Estimation of Short- and Medium-Chain Chlorinated Paraffins in Chinese Products through Detection-Based Mass Balancing " .