Human Risk from Exposure to Heavy Metals and Arsenic in Water from Rivers with Mining Influence in the Central Andes of Peru

Custodio, María; Cuadrado, Walter; Peñaloza, Richard; Montalvo, Raúl; Ochoa, Salomé; Quispe, Jocelyn

doi:10.3390/w12071946

Cited by 42 publications

(26 citation statements)

References 71 publications

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“…The main contributors to the contamination with heavy metals were Hg and Cd whose presence posed the highest potential ecological risk in the central city. According to Custodio et al [53], the rivers of the Mantaro River watershed are exposed to contamination by heavy metals and metalloids from natural and anthropogenic sources; among the latter, the mining metallurgical industry, agricultural activity, and manufacturing industry are the main sources. One of the key variables affecting the heavy metals release from sediments are also hydrometeorological conditions [54].…”

Section: Discussionmentioning

confidence: 99%

Analysis of Spatial Variability of River Bottom Sediment Pollution with Heavy Metals and Assessment of Potential Ecological Hazard for the Warta River, Poland

et al. 2021

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Pollution of river bottom sediments with heavy metals (HMs) has emerged as a main environmental issue related to intensive anthropopressure on the water environment. In this context, the risk of harmful effects of the HMs presence in the bottom sediments of the Warta River, the third longest river in Poland, has been assessed. The concentrations of Cr, Ni, Cu, Zn, Cd, and Pb in the river bottom sediments collected at 24 sample collection stations along the whole river length have been measured and analyzed. Moreover, in the GIS environment, a method predicting variation of HMs concentrations along the whole river length, not at particular sites, has been proposed. Analysis of the Warta River bottom sediment pollution with heavy metals in terms of the indices: the Geoaccumulation Index (Igeo), Enrichment Factor (EF), Pollution Load Index (PLI), and Metal Pollution Index (MPI), has proved that, in 2016, the pollution was heavier than in 2017. Assessment of the potential toxic effects of HMs accumulated in bottom sediments, made on the basis of Threshold Effect Concentration (TEC), Midpoint Effect Concentration (MEC), and Probable Effect Concentration (PEC) values, and the Toxic Risk Index (TRI), has shown that the ecological hazard in 2017 was much lower. Cluster analysis revealed two main groups of sample collection stations at which bottom sediments showed similar chemical properties. Changes in classification of particular sample collection stations into the two groups analyzed over a period of two subsequent years indicated that the main impact on the concentrations of HMs could have their point sources in urbanized areas and river fluvial process.

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Section: Discussionmentioning

confidence: 99%

Analysis of Spatial Variability of River Bottom Sediment Pollution with Heavy Metals and Assessment of Potential Ecological Hazard for the Warta River, Poland

et al. 2021

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“…Al mismo tiempo, esto implica un aumento en los SDT y en la C.E dado el material disuelto, proveniente de la activada minera (El Azhari et al, 2017;Ma et al, 2020;Mehler et al, 2019). Por último, cuando los relaves mineros no han tenido un adecuado tratamiento, estos, además de las características descritas anteriormente, también hay presencia de metales como el aluminio o el plomo, que son más estables, cuanto más ácido es el medio en el que se encuentran (Custodio et al, 2020;Quispe-Zuniga et al, 2019;Santos & Johnson, 2018).…”

Section: Relación Entre Los Parámetros Analizadosunclassified

Impacto de los efluentes mineros en los macroinvertebrados acuáticos en la cabecera del río Tingo, Cajamarca, Perú

Bustamante¹,

Campos²,

Mendoza³

et al. 2021

Nor@ndina

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La calidad del agua en los ríos altoandinos está amenazada por el aumento de las actividades mineras que afecta a los servicios ecosistémicos relacionados. El principal objetivo del estudio fue evaluar los parámetros fisicoquímicos, los metales pesados y los macroinvertebrados acuáticos como indicadores del estado ecológico del río Tingo durante la época seca, de transición y lluvia. Se establecieron tres puntos de monitoreo, teniendo en cuenta la intervención minera de la zona. Se analizaron los parámetros fisicoquímicos caudal, pH, temperatura, oxígeno disuelto, sólidos totales disueltos y conductividad eléctrica. Mientras que los metales pesados analizados fueron aluminio, cadmio, cobre, hierro, magnesio y plomo. Además, con los datos de macroinvertebrados, se calculó el Índice Biótico para los ríos del norte del Perú (nPeBMWP), para determinar la calidad ecológica de la cabecera del río Tingo. En la cabecera del río Tingo destacaron más los cambios en la dinámica espacial, que en la dinámica temporal. Los parámetros más importantes del estudio fueron el caudal, pH, conductividad eléctrica, cobre, hierro y manganeso. Por otro lado, tanto el caudal como el pH, fueron los parámetros que más se correlacionaron con el resto de parámetros, encontrando cuatro correlaciones para cada uno. Los parámetros de pH, oxígeno disuelto, y plomo no cumplieron con los Estándares de Calidad Ambiental para la Categoría 4. En cuanto a los macroinvertebrados, solo se encontraron en la estación sin influencia de la minería. Se registraron un total de 366 individuos, pertenecientes a 12 familias distribuidas en tres clases y siete órdenes. La clase más abundante fue Insecta con el 99.5% del total de individuos, destacando el orden Diptera con un 79.5% de los individuos. Según el nPeBMWP, la calidad ecológica en general es mala, destacando el cambio de la calidad según la época de muestreo en la estación sin influencia (desde regular hasta mala). Todos estos resultados fueron estadísticamente significativos (p<0.05). La evaluación de todos los parámetros, así como de los macroinvertebrados, evidencian que los efluentes mineros generan un gran impacto en la cabecera del rio Tingo, al eliminar el 100% de los macroinvertebrados por alteración de las propiedades fisicoquímicas de su agua.

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“…Wind and water flow carry several chemical elements to lakes, streams, and rivers during drought and rain season, including heavy metals, metals, and metalloids [6]. These watercourses and winds are directly linked to seas and oceans metals and metalloids accumulation, becoming pollutants and contaminant matter to plankton and animals, and fishes used for human food [7].…”

Section: Introductionmentioning

confidence: 99%

Assessment of Trace Elements Supply in Canned Tuna Fish Commercialized for Human Consumption in Brazil

Lima

Arakaki

Melo

et al. 2021

IJERPH

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This study evaluates the elemental content in 4 types of canned tuna fish groups, each with 4 brands that are commercialized for human consumption in Brazil. The results are based on trace elements in canned tuna fish quantified by ICP OES and a comparison to limit levels set by the FAO/WHO. We also checked the carcinogenic risk (CR), non-carcinogenic risk (Hazard Index (HI) and Hazard Quotient (HQ)), and pollution index (PI) for the studied canned tuna samples. As and Se concentrations in all groups are above the intake values set by FAO/WHO considering specific groups. The carcinogenic risk values for arsenic (As) in groups are considerably unacceptable (≥10−4). Hazard quotients (HQ) were >1 for As in all groups, while no sample was below 1 for HI. The pollution index (PI) results show that the main canned tuna fish contaminant is aluminum, then selenium and arsenic, respectively. Only half of the samples did not present elemental contaminant levels. All studied brands of canned tuna presented elemental concentrations that could pose a health risk to human consumption, that could be from CR, HQ, HI, or PI. The contaminant levels are alarming and should raise a red flag for the intake of these products, especially a long-term one. These results urge the authorities to supervise and enforce better practices for this type of food, protecting their population from health hazards.

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Human Risk from Exposure to Heavy Metals and Arsenic in Water from Rivers with Mining Influence in the Central Andes of Peru

Cited by 42 publications

References 71 publications

Analysis of Spatial Variability of River Bottom Sediment Pollution with Heavy Metals and Assessment of Potential Ecological Hazard for the Warta River, Poland

Analysis of Spatial Variability of River Bottom Sediment Pollution with Heavy Metals and Assessment of Potential Ecological Hazard for the Warta River, Poland

Impacto de los efluentes mineros en los macroinvertebrados acuáticos en la cabecera del río Tingo, Cajamarca, Perú

Assessment of Trace Elements Supply in Canned Tuna Fish Commercialized for Human Consumption in Brazil

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