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Microplastics and Anthropogenic Particles in Recreationally Caught Freshwater Fish from an Urbanized Region of the North American Great Lakes.
Environmental Health Perspectives ( IF 10.1 ) Pub Date : 2024-07-17 , DOI: 10.1289/ehp13540 Madeleine H Milne 1 , Paul A Helm 2 , Keenan Munno 1 , Satyendra P Bhavsar 2 , Chelsea M Rochman 1
Environmental Health Perspectives ( IF 10.1 ) Pub Date : 2024-07-17 , DOI: 10.1289/ehp13540 Madeleine H Milne 1 , Paul A Helm 2 , Keenan Munno 1 , Satyendra P Bhavsar 2 , Chelsea M Rochman 1
Affiliation
BACKGROUND
Microplastics are a pervasive contaminant cycling through food webs-leading to concerns regarding exposure and risk to humans.
OBJECTIVES
We aimed to quantify and characterize anthropogenic particle contamination (including microplastics) in fish caught for human consumption from the Humber Bay region of Lake Ontario. We related quantities of anthropogenic particles to other factors (e.g., fish size) that may help in understanding accumulation of microplastics in fish.
METHODS
A total of 45 samples of six fish species collected from Humber Bay in Lake Ontario near Toronto, Ontario, Canada, were examined for anthropogenic particles in their gastrointestinal (GI) tracts and fillets. Using microscopy and spectroscopy, suspected anthropogenic particles were identified and characterized.
RESULTS
We observed anthropogenic particles in the GI tracts and fillets of all species. Individual fish had a mean±standard deviation of 138±231 anthropogenic particles, with a single fish containing up to 1,508 particles. GI tracts had 93±226 particles/fish (9.8±32.6 particles/gram), and fillets had 56±61 particles/fish (0.5±0.8 particles/gram). Based on a consumption rate of 2 servings/week, the average yearly human exposure through the consumption of these fish fillets would be 12,800±18,300 particles.
DISCUSSION
Our findings suggest that consumption of recreationally caught freshwater fish can be a pathway for human exposure to microplastics. The elevated number of particles observed in fish from Humber Bay highlights the need for large-scale geographic monitoring, especially near sources of microplastics. Currently, it is unclear what the effects of ingesting microplastics are for humans, but given that recreationally caught freshwater fish are one pathway for human exposure, these data can be incorporated into future human health risk assessment frameworks for microplastics. https://doi.org/10.1289/EHP13540.
中文翻译:
北美五大湖城市化地区休闲捕获的淡水鱼中的微塑料和人为颗粒。
背景技术微塑料是一种通过食物网循环的普遍污染物,导致人们担心其对人类的暴露和风险。目标 我们旨在量化和表征从安大略湖亨伯湾地区捕获的供人类食用的鱼类中的人为颗粒污染(包括微塑料)。我们将人为颗粒的数量与其他因素(例如鱼的大小)联系起来,这可能有助于了解鱼体内微塑料的积累。方法 从加拿大安大略省多伦多附近的安大略湖亨伯湾采集了 6 种鱼类的 45 个样本,检查其胃肠道 (GI) 和鱼片中的人为颗粒。使用显微镜和光谱学,对可疑的人为颗粒进行了识别和表征。结果 我们在所有物种的胃肠道和鱼片中观察到人为颗粒。每条鱼的平均±标准差为 138±231 个人为颗粒,其中一条鱼含有多达 1,508 个颗粒。胃肠道含有 93±226 个颗粒/鱼(9.8±32.6 颗粒/克),鱼片含有 56±61 个颗粒/鱼(0.5±0.8 颗粒/克)。根据每周 2 份的消费率,人类每年因食用这些鱼片而接触到的颗粒物平均为 12,800±18,300 个颗粒。讨论我们的研究结果表明,食用休闲捕获的淡水鱼可能是人类接触微塑料的途径。在亨伯湾的鱼类中观察到的颗粒数量增加凸显了大规模地理监测的必要性,特别是在微塑料来源附近。 目前,尚不清楚摄入微塑料对人类有何影响,但鉴于休闲捕获的淡水鱼是人类接触微塑料的途径之一,这些数据可以纳入未来的微塑料人类健康风险评估框架中。 https://doi.org/10.1289/EHP13540。
更新日期:2024-07-17
中文翻译:
北美五大湖城市化地区休闲捕获的淡水鱼中的微塑料和人为颗粒。
背景技术微塑料是一种通过食物网循环的普遍污染物,导致人们担心其对人类的暴露和风险。目标 我们旨在量化和表征从安大略湖亨伯湾地区捕获的供人类食用的鱼类中的人为颗粒污染(包括微塑料)。我们将人为颗粒的数量与其他因素(例如鱼的大小)联系起来,这可能有助于了解鱼体内微塑料的积累。方法 从加拿大安大略省多伦多附近的安大略湖亨伯湾采集了 6 种鱼类的 45 个样本,检查其胃肠道 (GI) 和鱼片中的人为颗粒。使用显微镜和光谱学,对可疑的人为颗粒进行了识别和表征。结果 我们在所有物种的胃肠道和鱼片中观察到人为颗粒。每条鱼的平均±标准差为 138±231 个人为颗粒,其中一条鱼含有多达 1,508 个颗粒。胃肠道含有 93±226 个颗粒/鱼(9.8±32.6 颗粒/克),鱼片含有 56±61 个颗粒/鱼(0.5±0.8 颗粒/克)。根据每周 2 份的消费率,人类每年因食用这些鱼片而接触到的颗粒物平均为 12,800±18,300 个颗粒。讨论我们的研究结果表明,食用休闲捕获的淡水鱼可能是人类接触微塑料的途径。在亨伯湾的鱼类中观察到的颗粒数量增加凸显了大规模地理监测的必要性,特别是在微塑料来源附近。 目前,尚不清楚摄入微塑料对人类有何影响,但鉴于休闲捕获的淡水鱼是人类接触微塑料的途径之一,这些数据可以纳入未来的微塑料人类健康风险评估框架中。 https://doi.org/10.1289/EHP13540。