Group 1 - The core issue revolves around the abnormal lead levels in children from Gansu's Banshi Peixin Kindergarten, with skepticism regarding the investigation's findings and the potential involvement of nearby factories [1][2] - The investigation suggests that the food prepared at the kindergarten is a plausible source of lead contamination, although the motive behind such actions remains unclear [2][49] Group 2 - The environmental pollution theory fails to explain the significant lead levels found in children, as relatives of affected children did not show similar issues, indicating that the problem is localized to the kindergarten [4][5] - Blood lead levels in affected children were reported to be above 300 µg/L, with some exceeding 400 µg/L, which is significantly higher than those from a nearby kindergarten [6][9] Group 3 - The investigation mentions the use of lead-containing colored pigments in the kindergarten, but does not specify the exact type of pigment used [11] - The possibility of using chrome yellow (lead chromate) as a pigment is discussed, with historical precedents of illegal use in food coloring [12][48] Group 4 - There are documented cases of lead contamination in food products due to the use of illegal dyes, such as in Bangladesh where lead chromate was used to enhance the color of turmeric [21][55] - The article highlights that the lead levels found in the kindergarten's pastries were over 1000 mg/kg, far exceeding legal limits for food products [13][43] Group 5 - The article raises concerns about the potential confusion between food-grade lemon yellow and industrial-grade lemon chrome yellow, which could lead to serious health risks if misused [39][40] - The strict regulations on food additives in China are noted, emphasizing that the lead levels found in the kindergarten's products far exceed permissible limits [43][46] Group 6 - The article concludes that while the technical possibility of lead contamination through food coloring exists, the lack of clarity regarding the motive for such actions raises significant doubts about the investigation's findings [49][61] - The discrepancies in blood lead level testing methods are also mentioned, suggesting that local testing may have produced false negatives [62]

Core Viewpoint - The Zhejiang Provincial Market Supervision Administration has identified non-compliance issues in soy products primarily related to the excessive use of food additives, highlighting the need for stricter enforcement of food safety standards [1][2][3]. Group 1: Inspection Results - In April and May, the Zhejiang Provincial Market Supervision Administration conducted eight rounds of food safety inspections focused on soy products [1]. - Specific non-compliance cases included three batches of soy products failing to meet safety standards due to the presence of lemon yellow, a synthetic coloring agent [2]. - Other violations included the detection of benzoic acid and its sodium salt, as well as aluminum residue exceeding the national safety standards in various soy products [2][3]. Group 2: Regulatory Standards - The use of lemon yellow in dried vegetables and soy products is prohibited under the national food safety standards (GB 2760-2014) [3][4]. - Benzoic acid and its sodium salt are also banned in soy products, as their excessive consumption can lead to liver toxicity [4]. - The maximum allowable limit for aluminum residue in soy products is set at 100 mg/kg, according to the updated standards (GB 2760-2024) [5]. Group 3: Potential Causes of Non-compliance - The excessive use of lemon yellow may stem from manufacturers attempting to enhance product appearance and market value [4]. - The presence of benzoic acid could be due to efforts to extend shelf life or compensate for poor hygiene during production [4]. - Aluminum residue issues may arise from improper control of aluminum-containing additives or high aluminum content in raw materials [5].