MMWR Morb Mortal Wkly Rep. 2018 Nov 23;67(46):1290-1294. doi: 10.15585/mmwr.mm6746a2.
The number of pediatric cases of elevated blood lead levels (BLLs) are decreasing in North Carolina. However, one county reported an increase in the number of children with confirmed BLLs ≥5 μg/dL (CDC reference value, https://www.cdc.gov/nceh/lead/acclpp/blood_lead_levels.htm), from 27 in 2013 to 44 in 2017. Many children with elevated BLLs in this county lived in new housing, but samples of spices, herbal remedies, and ceremonial powders from their homes contained high levels of lead. Children with chronic lead exposure might suffer developmental delays and behavioral problems (https://www.cdc.gov/nceh/lead/). In 1978, lead was banned from house paint in the United States (1); however, children might consume spices and herbal remedies daily. To describe the problem of lead in spices, herbal remedies, and ceremonial powders, the North Carolina Childhood Lead Poisoning Prevention Program (NCCLPPP) retrospectively examined properties where spices, herbal remedies, and ceremonial powders were sampled that were investigated during January 2011-January 2018, in response to confirmed elevated BLLs among children. NCCLPPP identified 59 properties (6.0% of all 983 properties where home lead investigations had been conducted) that were investigated in response to elevated BLLs in 61 children. More than one fourth (28.8%) of the spices, herbal remedies, and ceremonial powders sampled from these homes contained ≥1 mg/kg lead. NCCLPPP developed a survey to measure child-specific consumption of these products and record product details for reporting to the Food and Drug Administration (FDA). Lead contamination of spices, herbal remedies, and ceremonial powders might represent an important route of childhood lead exposure, highlighting the need to increase product safety. Setting a national maximum allowable limit for lead in spices and herbal remedies might further reduce the risk for lead exposure from these substances.
北卡罗来纳州儿童血铅水平升高（BLL）的病例数量正在减少。然而，有一个县报告称，确诊 BLL 水平≥5μg/dL（CDC 参考值，https://www.cdc.gov/nceh/lead/acclpp/blood_lead_levels.htm）的儿童人数有所增加，从 2013 年的 27 人增加到 2017 年的 44 人。该县许多血铅水平升高的儿童居住在新住房中，但从他们家中采集的香料、草药和仪式粉末样本中含有高水平的铅。长期接触铅的儿童可能会出现发育迟缓以及行为问题（https://www.cdc.gov/nceh/lead/）。1978 年，美国禁止在房屋涂料中使用铅（1）；然而，儿童可能每天都要食用香料和草药。为了描述香料、草药和仪式粉末中铅的问题，北卡罗来纳州儿童铅中毒预防计划（NCCLPPP）回顾性地检查了在 2011 年 1 月至 2018 年 1 月期间，对因儿童血铅水平升高而接受调查的房屋中采集的香料、草药和仪式粉末的属性。NCCLPPP 确定了 59 处房产（占所有进行过家庭铅调查的 983 处房产的 6.0%），这些房产是针对 61 名儿童血铅升高的情况进行调查的。从这些家庭采集的香料、草药和仪式粉末样本中，超过四分之一（28.8%）的样本含铅量≥1mg/kg。NCCLPPP 制定了一项调查，以测量儿童对这些产品的具体消费情况，并记录产品详细信息以向食品和药物管理局（FDA）报告。香料、草药和仪式粉末的铅污染可能代表儿童铅暴露的一个重要途径，这凸显了增加产品安全性的必要性。为香料和草药设定国家允许的铅含量最大限值可能会进一步降低这些物质导致铅暴露的风险。
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