甘肃通报：褐石培心幼儿园餐食铅含量严重超标 6人被批捕 17人被立案审查调查

Core Viewpoint - The investigation into the abnormal blood lead levels among children at the Gansu Province's Maiji District's Heishi Peixin Kindergarten revealed serious food safety violations, including the use of toxic non-food-grade pigments in food preparation, leading to significant health risks for the children and staff [1][4][20]. Group 1: Case Investigation - The kindergarten's chef purchased non-food-grade pigments online, which were then mixed into food served to children, resulting in lead levels in the food that were severely above safety standards, with corn rolls and red date cakes containing 1340 mg/kg and 1052 mg/kg of lead respectively [2][11]. - The kindergarten's management aimed to enhance the visual appeal of food to attract more students, leading to the decision to use these harmful additives despite the availability of safer alternatives [3][10]. Group 2: Environmental Pollution Investigation - Environmental tests around the kindergarten showed no lead contamination in air, water, or soil, indicating that the source of lead exposure was not from the surrounding environment but from the food served at the kindergarten [6][7][8]. - Investigations into nearby industrial sites confirmed that they did not contribute to lead pollution affecting the kindergarten, as they were located over 1.8 kilometers away and had ceased operations that could produce lead contamination [8][9]. Group 3: Blood Lead Testing and Medical Response - A total of 251 children and 34 staff members were tested for blood lead levels, with 247 children and 28 staff members showing abnormal results, prompting immediate medical intervention [20][21]. - The treatment for affected individuals has shown promising results, with an average reduction of 40.21% in blood lead levels after the first treatment cycle [21]. Group 4: Accountability and Regulatory Response - Investigations have led to the arrest and accountability of multiple individuals involved in the kindergarten's management and regulatory oversight, highlighting systemic failures in food safety monitoring and public health response [16][19]. - The Gansu provincial government has committed to a thorough review and overhaul of food safety regulations in educational institutions to prevent future incidents [22].