Temporal variation and risk assessment of heavy metals and nutrients from water and sediment in a stormwater pond, Brazil

Silva, Emanoelle Pereira da; Filho, Nelson Roberto Antoniosi; Pereira, Julião; Formiga, Klebber Teodomiro Martins

doi:10.2166/ws.2022.441

Cited by 5 publications

(2 citation statements)

References 53 publications

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“…Mosquera and Morales [108] characterized stormwater quality under different land uses in Bogotá, concluding that areas with more vehicular traffic contribute the largest portion of runoff pollution being released to the environment, though their values are far below those documented in our study, possibly because of the significantly wetter climate that the Colombian city experiences compared to Arequipa. Finally, Shubo et al [109] evaluated the microbiology of urban stormwater in Brazil, not including the analytes considered in our study, while da Silva et al [110] studied stormwater quality in a retention pond (not compatible with our methods).…”

Section: Global Perspectivementioning

confidence: 99%

Urban Stormwater Quality in Arequipa, Southern Peru: An Initial Assessment

Martínez,

García-Chevesich,

Guillen

et al. 2023

Water

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Urban stormwater quality has been sampled and chemically analyzed in the city of Arequipa, southern Peru. Stormwater samples generated from a 0.04 km2 drainage area in a downtown location were collected during two rainy seasons (2022 and 2023), including both first flush and peak flow for each storm event, analyzing physical and chemical (metals) variables. Results were compared with Peruvian agricultural irrigation standards, identifying also temporal changes and statistical correlations. Several metals (B, Cu, Fe, Mn, and Zn) were detected at concentrations above Peruvian MPLs, with B being the analyte that violated the norm more often. Most pollution occurred at the beginning of each rainy season and during the first flush stages. All vehicle-related contaminants were well correlated except for Pb and Se, which were assumed to have a different source of origin. We recommend that further investigations should focus on the effects of urban stormwater on downstream ecosystems in Peru. Similarly, we strongly recommend the creation of new regulations that ensure proper stormwater quality released from urban areas of this country, as well as preventive/treatment practices to minimize the pollution of downstream aquatic ecosystems and ensure healthy water to irrigate crops located downstream from cities.

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Section: Global Perspectivementioning

confidence: 99%

Urban Stormwater Quality in Arequipa, Southern Peru: An Initial Assessment

Martínez,

García-Chevesich,

Guillen

et al. 2023

Water

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“…In recent years, with the increase of urban population in Yangxin County, the point source pollution of production and living emissions has increased. Sewage discharge causes nutrients and OM in the water to accumulate in sediments [31]. Although sewage treatment plants have been built in towns in the basin, domestic sewage has been largely intercepted.…”

Section: The Source Of Nutrients and Heavy Metals In Sedimentsmentioning

confidence: 99%

Distribution and Pollution Evaluation of Nutrients, Organic Matter and Heavy Metals in Surface Sediments of Wanghu Lake in the Middle Reaches of the Yangtze River, China

Gao,

Lin,

et al. 2023

Sustainability

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Nutrients, organic matter (OM), and heavy metals (HMs) in lake sediments are critical elements contributing to water pollution. In April 2019, surface sediments from Wanghu Lake were collected, and the nutrient, organic matter, and heavy metal content of the sediments were determined. We mainly evaluated the sediment pollutants through four evaluation methods to assess pollution and provide a reference for pollution control in Wanghu Lake. The results indicated that the averages of total phosphorus (TP) and total nitrogen (TN) were (1045.74 ± 190.17) mg/kg, (945.27 ± 203.56) mg/kg; most of them showed serious pollution and moderate pollution, respectively. OM was (32.31 ± 5.11) g/kg. Among them, TP and OM in the northwestern Wanghu Lake were significantly higher than those in the eastern lake (p < 0.05). It shows that nutrients are greatly affected by historical aquaculture and urban human activities. TP was the most serious in the center of the lake, and the source of pollution was mainly the historical deposition. The average of Cd, Cr, Cu, Ni, Pb, Zn, Hg, and As in the sediments were 2.15, 1.09, 1.93, 1.37, 1.28, 1.49, 2.60, 1.77 times that of the soil background values of Hubei Province, respectively. Hg and Cd were the main factors contributing to the surface sediments, with levels at considerable and moderate risks, respectively.

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A probabilistic risk assessment of heavy metal in water and sediment: An industrially affected urban river in Bangladesh

Ahmed,

Islam,

Quraishi

et al. 2024

Water Environment Research

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Human welfare and biodiversity are at risk due to the deterioration of water and sediment quality. Particularly, in last few decades, global water and sediment quality degraded due to the rapid industrialization and urbanization. This study aimed to determine the concentration of nine heavy metals and metalloid (Pb, Cr, Cd, Hg, As, Mn, Ni, Cu, and Zn) and assess the ecological risks using different pollution indices (e.g., heavy metal pollution index [HPI], Nemerow pollution index [NI], geo‐accumulation index [Igeo], contamination factor [CF], degree of contamination [CD] and pollution load index [PLI], ecological risk index [ERI]) in water and sediment of the Shitalakshya River, an industrially affected urban river of Bangladesh. For the first time, 20 water and sediment samples were collected across a wider geographical area of the Shitalakshya River during both monsoon and dry seasons and analyzed using the atomic absorption spectrometer. Average concentrations of heavy metals and metalloid in water were within the Bangladesh standard except for Cr (51.69 ppb) and Mn (228.20 ppb) during monsoon season, portraying potential ecological and human health risks. Besides, average concentration of Mn (549.75 and 370.93 ppb), Ni (549.75 and 370.93 ppb), and Cu (45.34 and 36.09 ppb) in sediment during both seasons were above international standard, implying risk to aquatic sediment biota. The average HPI values indicated moderate to high contamination, whereas the NI values implied polluted water in monsoon season with severe pollution in port area of the river. Similarly, Igeo, CF, CD, and PLI elucidated different levels of contamination in the sediment, particularly during dry season. The ERI values also referred moderate ecological risk in the sediment during dry season. Overall, our findings highlight the alarming level of heavy metal pollution in the Shitalakshya River, necessitating immediate action to protect the aquatic environment, sediment biota, and human health.Practitioner points This study determined the concentration of heavy metals and metalloid in water and sediment of the Shitalakshya River, Bangladesh. The study revealed that the average concentration of Cr and Mn in water exceeded national standard, whereas Mn, Ni, and Cu in sediment exceeded international limit. Potential ecological risk of heavy metals was also assessed using different pollution indices. Calculated pollution indices indicated different degree of pollution, implying critical ecological condition due to heavy metal pollution in aquatic environment and sediment biota.

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Temporal variation and risk assessment of heavy metals and nutrients from water and sediment in a stormwater pond, Brazil

Cited by 5 publications

References 53 publications

Urban Stormwater Quality in Arequipa, Southern Peru: An Initial Assessment

Urban Stormwater Quality in Arequipa, Southern Peru: An Initial Assessment

Distribution and Pollution Evaluation of Nutrients, Organic Matter and Heavy Metals in Surface Sediments of Wanghu Lake in the Middle Reaches of the Yangtze River, China

A probabilistic risk assessment of heavy metal in water and sediment: An industrially affected urban river in Bangladesh

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