Copper toxicity and the influence of water quality of Dongnai River and Mekong River waters on copper bioavailability and toxicity to three tropical species

Bui, Thanh-Khiet L.; Do-Hong, Lan-Chi; Dao, Thanh‐Son; Hoang, Tham C.

doi:10.1016/j.chemosphere.2015.09.058

Cited by 51 publications

(38 citation statements)

References 34 publications

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“…2), was collected from a fish pond in Northern Vietnam (Bui et al, 2016) and has been well maintained in the Laboratory of Environmental Toxicology, Institute for Environment and Resources, Vietnam National University -Hochiminh City, for more than 2 year. Daphnia lumholtzi was raised in COMBO medium (Kilham et al, 1998), at 27 ± 1 º C with a photoperiod of 12h light and 12h dark and under the light intensity of around 1000 Lux.…”

Section: Toxicity Testmentioning

confidence: 99%

“…Hence, we questioned the potential toxicity affects on tropical micro-crustaceans in the near future. Also, we supposed that using field water for the toxicity tests would contribute a more realistic assessment of potential effects of metals than using artificial media (Dao et al, 2016). The aim of this study was to evaluate the acute and chronic effects of Zn spiked into Saigon River water on the tropical micro-crustacean, Daphnia lumholtzi.…”

Section: Introductionmentioning

confidence: 99%

“…Muyssen et al (2006) recorded the negative impacts of Zn (340 µg/L) on survival of D. magna. Dao et al (2016) reported the Zn dissolved in Mekong River water at the concentrations of 50 -56 µg/L impaired the life history traits of D. lumholtzi such as survival, maturity age, growth, fecundity and reproduction. Generally, toxicity of metals to Daphnia was studied considerably with species from temperate regions such as Europe and North American (e.g.…”

Section: Introductionmentioning

confidence: 99%

“…D. magna, D. pulex, D. parvula, D. ambigua). However, investigations on the toxicity, especially chronic effects, of dissolved metals in field waters to the tropical micro-crustacean D. lumholtzi remained limited (Dao et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

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Toxicity of Zinc Dissolved In Saigon River to the Tropical Micro-Crustacean Daphnia Lumholtzi

Dao

Tran

et al. 2016

EMSD

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In this study we evaluated the responses of the tropical micro-crustacean, Daphnia lumholtzi, Environmental Management and Sustainable Development ISSN 2164-7682 2016 www.macrothink.org/emsd 171 to zinc (Zn). For a more environmentally realistic assessment on the Zn toxicity, water sample collected from Saigon River was used as medium for the daphnids and Zn was spiked into field water for exposures. River water was physically and chemically measured and analyzed, and the sufficient water quality was confirmed prior to be used for the acute and chronic experiments. Metal concentrations in the test water were determined with an inductively coupled plasma/ mass spectrometry (ICP/MS). In the acute test implementation, Zn concentrations were from 67 -360 µg/L. In the chronic experiments, the animals were incubated in control (filtered field water only) or filtered field water added with Zn (28, 46, and 75 µg/L) over the period of 14 days. The life history traits of daphnids including the survival, maturation, reproduction were daily observed. The results showed that the value of median lethal concentrations (48h-LC 50 ) was 136 µg Zn/L (95% CI = 107 -165 µg Zn/L). Chronic exposures revealed that Zn caused the survival reduction, delayed maturity age and reproduction decrease. Our study suggested D. lumholtzi as a very good freshwater aquatic zooplankton for assessment on the toxicity of metals in tropics. Besides, the Vietnam guideline values regarding Zn should be re-considered and adjusted for the aquatic ecological protection.

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Section: Toxicity Testmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Toxicity of Zinc Dissolved In Saigon River to the Tropical Micro-Crustacean Daphnia Lumholtzi

Dao

Tran

et al. 2016

EMSD

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“…The Lower Dong Nai River and its tributaries have the characteristics of flat terrain and low slope (altitude: 0.5-3.0 m) which tend to decrease 2 cm in height per 1 km in length to downstream [1]. In regard to water quality in this area, the river had a range of water quality parameters that modify copper bioavailability and toxicity [2]. The deterioration of water quality in the Dong Nai river system is increasing at an alarming level due to rapid urbanization and industrialization process [3].…”

Section: Introductionmentioning

confidence: 99%

Influence of Water Temperature and Salinity on PH During Dry Season in Lower Dong Nai River System, Vietnam

Dung¹,

Duc²

2015

GeoScience Engineering

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This paper uses the gvSIG 2.2.0 software, IDW interpolation method, river and stream network data, and 36 sampling sites to build the maps of three monitored parameters such as pH, water temperature, and salinity in the Lower Dong Nai River system (2009)(2010) in dry season. Based on an analysis of these maps and statistical assessment by using the R software, the correlations between pH, temperature, and salinity are clarified. The results show that the pH and temperature values have a tendency to decrease, whereas the salinity tends to increase annually. The pH value has good and significant correlations with the water temperature and salinity in both simple and multiple linear regression models. The results aim to provide a scientific reference for further research on the water environment in this area.

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Characterization of Metal Pulsed Exposure to Aquatic Organisms with Post‐Exposure Monitoring: Implications for Stormwater Exposure Assessment

Karic

Colvin

Rosen

et al. 2022

Enviro Toxic and Chemistry

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Freshwater organisms are often exposed to contaminants such as heavy metals from stormwater discharges, which are dependent on rainfall duration and intensity. Therefore, standardized (48‐ or 96‐h) continuous exposure methods developed for whole effluent toxicity (WET) testing might not always accurately convey the effects of stormwater and runoff contaminants. The present study characterized the acute toxicity of copper (Cu), zinc (Zn), and cadmium (Cd) to freshwater amphipods (Hyalella azteca) and cadmium (Cd) to water fleas (Ceriodaphnia dubia) using a modified exposure design that integrated relevant pulsed durations and included post‐exposure monitoring. Less than 24‐h‐old C. dubia and 7 to 8‐day‐old H. azteca were exposed to water spiked with Cu, Zn, or Cd using 6‐, 12‐, 26‐, or 96‐h durations under standard laboratory conditions and monitored for cumulative mortality and reproduction (C. dubia only). Lethal effect (LC10s, LC25s, LC50s) and reproductive effect (EC25s, EC50s) were determined based on either mortality or reproduction of organisms at the end of each pulse (6, 12, or 26 h) and at the end of their respective tests (96 h). For all metals exposed to each organism, acute toxicity was found to be highest for the (96 h) continuous exposures. For pulsed exposures, mortality continued to increase following transfer to clean water for post‐exposure monitoring. These results indicate a latent effect of Cu, Zn, and Cd to H. azteca and Cd to C. dubia. The present study concluded that using the continuous (48‐ or 96‐h) WET exposure method overestimates the effects of stormwater and runoff contaminants. However, pulsed exposures without post‐exposure monitoring also underestimate the toxicity of contaminants. The proposed pulsed exposure design provides a compromise that is more realistic than current WET methods to assess impacts from episodic events and accounts for potential latent effects that may be overlooked without monitoring post‐exposure. Environ Toxicol Chem 2022;41:2488–2499. © 2022 SETAC

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Copper toxicity and the influence of water quality of Dongnai River and Mekong River waters on copper bioavailability and toxicity to three tropical species

Cited by 51 publications

References 34 publications

Toxicity of Zinc Dissolved In Saigon River to the Tropical Micro-Crustacean Daphnia Lumholtzi

Toxicity of Zinc Dissolved In Saigon River to the Tropical Micro-Crustacean Daphnia Lumholtzi

Influence of Water Temperature and Salinity on PH During Dry Season in Lower Dong Nai River System, Vietnam

Characterization of Metal Pulsed Exposure to Aquatic Organisms with Post‐Exposure Monitoring: Implications for Stormwater Exposure Assessment

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