Post-Graduation Program in Ecology and Conservation, Universidade Federal do Paraná, P.O. Box 19031, 81531-990 Curitiba, PR, Brazil; Laboratório de Toxicologia Celular, Departamento de Biologia Celular, Universidade Federal do Paraná, CP19031, 81531-990 Curitiba, PR, Brazil; NEPEA, Campus do Litoral Paulista, Universidade Estadual Paulista Júlio de Mesquita Filho, Praça Infante Dom Henrique, s/n, 11330-900 São Vicente, SP, Brazil.
NEPEA, Campus do Litoral Paulista, Universidade Estadual Paulista Júlio de Mesquita Filho, Praça Infante Dom Henrique, s/n, 11330-900 São Vicente, SP, Brazil.
Sci Total Environ. 2018 Jul 1;628-629:621-630. doi: 10.1016/j.scitotenv.2018.02.005. Epub 2018 Feb 20.
The risk of metals and As in seafood for traditional populations living in a Marine Protected Areas (MPA) is seldom assessed, although the risk of human exposure to contaminants is one of the indicators associated with the socioeconomic goals of MPAs. The current study aimed to estimate the potential risk of some metals (Cd, Pb, and Zn) and arsenic (As) for human health through the ingestion of fish locally harvested in a Ramsar site, the Cananéia-Iguape-Peruíbe Environmental Protected Area (APA-CIP). Previous studies showed environmental impacts in this area due to former mining activities and urbanization. Cathorops spixii, a catfish largely consumed by the local population, was collected along the estuary in three seasons with different rain regimes. Metals and As loads in muscle tissue were quantified and it was estimated (i) the target hazard quotient (THQ) and (ii) the daily intake (EDI) for metals and As, (iii) the cancer risk (CRisk) only for As, and (iv) the number of eligible meals per month. Cd, Pb, and As were found at concentrations above action levels for human consumption. Depending on the level of exposure of the local population, the consumption of C. spixii may pose risk to human health. Highest THQs were estimated for fish collected in sites closer to the main contamination sources in the APA-CIP, i.e. the mouth of Ribeira de Iguape River (P1) and the city of Cananéia (P4, P5, and P6). Arsenic showed high levels of cancer risk, although restricted to the area close to the city. The exposure of the local population to metal and As contaminated seafood cannot be disregarded in environmental studies and management of the APA-CIP.
生活在海洋保护区 (MPA) 的传统人群中，海产品中的金属和砷的风险很少得到评估，尽管人类接触污染物的风险是与 MPA 的社会经济目标相关的指标之一。本研究旨在通过摄入在拉塞尔湿地、卡纳埃亚-伊瓜佩-秘鲁环境保护区 (APA-CIP) 本地收获的鱼类，评估一些金属（Cd、Pb 和 Zn）和砷 (As) 对人类健康的潜在风险。先前的研究表明，由于以前的采矿活动和城市化，该地区受到了环境影响。Cathorops spixii 是当地居民大量食用的一种鲶鱼，在三个不同降雨季节沿着河口采集。肌肉组织中的金属和 As 含量进行了定量分析，并估计了 (i) 目标危害系数 (THQ) 和 (ii) 金属和 As 的每日摄入量 (EDI)、(iii) 仅 As 的癌症风险 (CRisk)，以及 (iv) 每月合格餐数。Cd、Pb 和 As 的浓度均高于人类食用的行动水平。根据当地居民的暴露水平，食用 C. spixii 可能会对人类健康构成风险。在 APA-CIP 中，靠近主要污染来源的地点（即伊瓜佩河口 P1 和卡纳埃亚市 P4、P5 和 P6）采集的鱼类，其 THQ 估计最高。砷的癌症风险虽然仅限于城市附近地区，但风险较高。在环境研究和 APA-CIP 管理中，不能忽视当地居民对受金属和 As 污染的海鲜的暴露。
