Integrative toolbox to assess the quality of freshwater sediments contaminated with potentially toxic metals

Palma, Patrícia; Penha, Alexandra Marchã; Novais, Maria Helena; Fialho, Sofia; Lima, Ana; Catarino, Adriana; Mourinha, Clarisse; Alvarenga, Paula; Iakunin, Maksim; Rodrigues, Gonçalo; Potes, Miguel; Morais, Manuela; Costa, María João; Salgado, Rui

doi:10.1016/j.envres.2022.114798

Cited by 11 publications

(4 citation statements)

References 42 publications

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“…In general, the acute ecotoxicological bioassays showed that the ADWs were not toxic to the bioindicators used; only the sample from August 2021 induced a considerable decrease in luminescence of the bacterial V. fisheri with a 30 min-EC 50 of 25%. The V. fisheri bioassay is mainly sensitive to wastewater, samples contaminated with potentially toxic metals (PTM) [40], or with chlorides and ammonia [41,42]; but in the present study, the very low PTM concentrations, and the ammonia and chloride concentrations similar to the other samples, do not justify this observed toxicity. In fact, the August ADW sample had the highest concentrations of pyridafol (0.22 µg L −1 ; pyridate metabolite) and s-metolachlor (0.65 µg L −1 ), which may indicate that these herbicides, singly or in the mixture, may have influenced the observed toxic effect.…”

Section: Ecotoxicological Analysiscontrasting

confidence: 75%

Chemical and Ecotoxicological Assessment of Agricultural Drainage Water from a Maize Crop Area: A Case Study in the Tejo Basin (Portugal)

Palma

Catarino

Silva

et al. 2023

Water

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The use of agricultural drainage water (ADW) in irrigation is a great challenge, improving water use efficiency, nutrient circularity, and avoiding surface and ground-water contamination. The objective of this study was to evaluate the chemical and ecotoxicological characteristics of an ADW to analyze the safety of its reuse. An irrigated area with maize crops was selected (Tejo Basin, Portugal), where a subsurface structure for the recovery of ADW was installed, collecting the drainage in a pond and recycling it for crop irrigation. Water was collected monthly during the irrigation campaign of 2021 (April to August). Three herbicides and two metabolites were quantified, reaching a maximum concentration of 0.74 µg L−1 for S-metolachlor and 0.48 µg L−1 for terbuthylazine. The lethal bioassays did not detect toxicity, except for the sample collected in August toward Vibrio fisheri (EC50 = 25.2%). The samples were not toxic to Pseudokirchneriella subcapitata, with a growth inhibition rate of less than 10%. The low lethal and sublethal effects may be ascribed to the high nutrient concentration (e.g., 1.76 mg P L−1 and 98.9 mg NO3− L−1, in July) that could have masked toxic effects. Ecotoxicological responses support the option of ADW reuse in irrigation, offering a safe and sustainable solution for water and nutrient management.

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Section: Ecotoxicological Analysiscontrasting

confidence: 75%

Chemical and Ecotoxicological Assessment of Agricultural Drainage Water from a Maize Crop Area: A Case Study in the Tejo Basin (Portugal)

Palma

Catarino

Silva

et al. 2023

Water

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“…Iron and manganese concentrations were always below the maximum stipulated in Decree-Law No 236/98 (5.0 and 0.2 mg L −1 ; respectively; Table S4). The presence of both compounds may come from the geological structure of the area, which is very rich in these elements, as was observed in sediments from other reservoirs of the Alqueva hydro-agricultural system [52]. However, the observed concentrations may also be related with agricultural activity.…”

Section: Assessment Of Water Quality For Irrigationmentioning

confidence: 74%

Water Quality Assessment of a Hydro-Agricultural Reservoir in a Mediterranean Region (Case Study—Lage Reservoir in Southern Portugal)

Catarino,

Martins,

Mourinha

et al. 2024

Water

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In regions where drought has become a common occurrence for most of the year and where agriculture is the main economic activity, the development of hydro-agricultural systems has made it possible to improve water management. Despite this, the intensification of agriculture combined with climate change leads to a potential decrease in water quality and water management practices are essential to improve agro-environmental sustainability. The aim of this study was to assess the water quality for irrigation and potential ecological status of the reservoir (using support chemical parameters). The results showed biological oxygen demand values above the maximum stipulated for an excellent ecological potential in all sampling periods except April 2018 and December 2020 (with the highest values of 10 mg L−1 O2 in dry periods). Most of the total nitrogen concentrations (TN) surpassed those stipulated for a good ecological potential (0.96 ≤ TN ≤ 2.44 mg L−1 N). In fact, TN and total suspended solids were the main parameters used for water classification. From the perspective of irrigation and according to FAO guidelines regarding infiltration rate, these waters presented light to moderate levels of restrictions. Thus, the results revealed that the decrease in the water quality status and its possible impact on the soil infiltration rate can be related, in part, to the meteorological conditions and to the intensive agricultural practices developed around the drainage basin. Despite that, as the Lage reservoir is part of Brinches–Enxoé hydraulic circuit, the water recirculation is also an important factor that may have affected the results obtained. Furthermore, the experimental design, integrating ecological status, irrigation parameters, and the impact on soil systems; using the same parameters from different perspectives; allowed us to have a global idea of water contamination and its impact on agroecosystems, improving river basin management processes.

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“…where C n represents the concentration of metals in soils of the studied region (mg/kg); C B represents the background content of metal n (mg/kg) [26]. To account for potential fluctuations in the background values, the constant 1.5 is utilized [27,28]. Table S2 lists the I geo evaluation standards.…”

Section: Data Analysis 231 Geoaccumulation Indexmentioning

confidence: 99%

Pollution Profiles, Source Identification and Health Risk Assessment of Heavy Metals in Soil near a Non-Ferrous Metal Smelting Plant

Zhang

et al. 2023

IJERPH

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Heavy metal pollution related to non-ferrous metal smelting may pose a significant threat to human health. This study analyzed 58 surface soils collected from a representative non-ferrous metal smelting area to screen potentially hazardous heavy metals and evaluate their health risk in the studied area. The findings demonstrated that human activity had contributed to the pollution degrees of Cu, Cd, As, Zn, and Pb in the surrounding area of a non-ferrous metal smelting plant (NMSP). Cu, Cd, As, Zn, Pb, Ni, and Co pollution within the NMSP was serious. Combining the spatial distribution and Spearman correlations with principal component analysis (PCA), the primary sources of Cd, As, Pb, and Zn in surrounding areas were related to non-ferrous metal smelting and transportation activities. High non-cancer (THI = 4.76) and cancer risks (TCR = 2.99 × 10−4) were found for adults in the NMSP. Moreover, heavy metals in the surrounding areas posed a potential cancer risk to children (TCR = 3.62 × 10−6) and adults (TCR = 1.27 × 10−5). The significant contributions of As, Pb, and Cd to health risks requires special attention. The construction of a heavy metal pollution management system will benefit from the current study for the non-ferrous metal smelting industry.

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Integrative toolbox to assess the quality of freshwater sediments contaminated with potentially toxic metals

Cited by 11 publications

References 42 publications

Chemical and Ecotoxicological Assessment of Agricultural Drainage Water from a Maize Crop Area: A Case Study in the Tejo Basin (Portugal)

Chemical and Ecotoxicological Assessment of Agricultural Drainage Water from a Maize Crop Area: A Case Study in the Tejo Basin (Portugal)

Water Quality Assessment of a Hydro-Agricultural Reservoir in a Mediterranean Region (Case Study—Lage Reservoir in Southern Portugal)

Pollution Profiles, Source Identification and Health Risk Assessment of Heavy Metals in Soil near a Non-Ferrous Metal Smelting Plant

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