Yun Jianghui, Yang Qiuting, Zhao Chenyan, Chen Changzhi, Liu Guorui
State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China.
College of Resource and Environment, University of Chinese Academy of Sciences, Beijing, China.
Nat Commun. 2024 Oct 29;15(1):9338. doi: 10.1038/s41467-024-53684-6.
Unintentional releases of rare earth elements (REEs), emerging environmental pollutants, from global industries contribute to atmospheric pollution. However, a gap remains regarding the recognition of REYs in industrial fine particulate matter (PM) as a primary source of atmospheric PM. Here, we identified the characteristic of REEs in PM from 114 large-scale industries covering 13 important sectors. Based on the derived emission factors, 13 industrial sources in China emit 136,914 kg of REEs annually, with cement, coal power and coking responsible for 105,226, 12,635, and 11,940 kg/year, respectively. Source-specific elemental profiles were achieved and can be used to allocate the sources of REEs in atmosphere. The average daily intake of REEs from industrial fine PM inhalation was 11.72 ng/(kg·day) for children and 7.41 ng/(kg·day) for adults, pivotal data for assessing health risks. This study is important for sustainable industrial development and human wellness.
全球工业中稀土元素（REEs）这一新兴环境污染物的意外排放导致了大气污染。然而，在将工业细颗粒物（PM）中的稀土元素（REYs）视为大气PM的主要来源这一认识上仍存在差距。在此，我们确定了涵盖13个重要行业的114个大规模行业的PM中稀土元素的特征。根据得出的排放因子，中国的13个工业源每年排放136,914千克稀土元素，其中水泥、煤电和焦化行业分别每年排放105,226、12,635和11,940千克。实现了特定源的元素谱，可用于确定大气中稀土元素的来源。儿童因吸入工业细颗粒物而摄入稀土元素的日均摄入量为11.72纳克/（千克·天），成人为7.41纳克/（千克·天），这是评估健康风险的关键数据。本研究对可持续工业发展和人类健康至关重要。
