The microbiotest battery as an important component in the assessment of snowmelt toxicity in urban watercourses—preliminary studies

Szklarek, Sebastian; Stolarska, M.; Wagner, Iwona; Mankiewicz-Boczek, Joanna

doi:10.1007/s10661-014-4252-1

Cited by 18 publications

(10 citation statements)

References 37 publications

(57 reference statements)

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“…In contrast, the highest average concentration was recorded during the last two sampling periods (IV– 313 ng EQ L -1 , and V- 345 ng EQL -1 ), which were characterized by inflow of meltwater (IV) and rain during sample collection (V). In the case of the conditions observed during sampling period IV, the rapid release of contaminants accumulated in the mass of melting snow and ice and their transport with runoff into river ecosystems can affect the significant deterioration of water parameters in Sokołówka River as it was demonstrated in the study of Szklarek et al [ 6 ]. Kawamura and Kaplan [ 35 ], Gregor et al [ 36 ], Herbert et al [ 37 ] and Lei and Wania [ 38 ] note that snow acts as a source of organochlorine compounds, which are released during snowmelt and cause significant pollution of the water environment.…”

Section: Discussionmentioning

confidence: 99%

“…In the former, the presence of low and stable rainfall, combined with the lowest air and water temperatures, may have contributed to the continuous release of pollutants from leaky septic tanks or intentionally discharged wastewater [ 10 – 14 ]. However, in the latter, the obtained concentrations could be due to the inflow of meltwater into the river [ 6 ].…”

Section: Discussionmentioning

confidence: 99%

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Effects of Stormwater and Snowmelt Runoff on ELISA-EQ Concentrations of PCDD/PCDF and Triclosan in an Urban River

et al. 2016

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The aim of the study was to determine the effects of stormwater and snowmelt runoff on the ELISA EQ PCDD/PCDF and triclosan concentrations in the small urban Sokołówka River (Central Poland). The obtained results demonstrate the decisive influence of hydrological conditions occurring in the river itself and its catchment on the quoted PCDD/PCDF ELISA EQ concentrations. The lowest PCDD/PCDF values of 87, 60 and 67 ng EQ L-1 in stormwater, the river and its reservoirs, respectively, were associated with the highest river flow of 0.02 m3 s-1 and high precipitation (11.2 mm) occurred five days before sampling. In turn, the highest values of 353, 567 and 343 ng EQ L-1 in stormwater, the river and its reservoirs, respectively, were observed during periods of intensive snow melting (stormwater samples) and spring rainfall preceded by a rainless phase (river and reservoir samples) followed by low and moderate river flows of 0.01 and 0.005 m3 s-1. An analogous situation was observed for triclosan, with higher ELISA EQ concentrations (444 to 499 ng EQ L-1) noted during moderate river flow and precipitation, and the lowest (232 to 288 ng EQ L-1) observed during high river flow and high precipitation preceded by violent storms. Stormwater was also found to influence PCDD/PCDF EQ concentrations of the river and reservoirs, however only during high and moderate flow, and no such effect was observed for triclosan. The study clearly demonstrates that to mitigate the high peaks of the studied pollutants associated with river hydrology, the increased in-site stormwater infiltration and purification, the development of buffering zones along river course and the systematic maintenance of reservoirs to avoid the accumulation of the studied micropollutants and their subsequent release after heavy rainfall are required.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Effects of Stormwater and Snowmelt Runoff on ELISA-EQ Concentrations of PCDD/PCDF and Triclosan in an Urban River

et al. 2016

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“…Therefore, bioassays can be used for various purposes, such as bio-monitoring (Rakshith et al 2016), early warning systems, for regulatory purposes (Power and Boumphrey 2004;Tonkes, den Besten, and Leverett 2016), and effect screening (Carbajo et al 2015). Due to species-specific sensitivities and different exposure pathways, a combination of biotests, a so-called "battery," with different test organisms at different trophic levels is usually applied (Allan et al 2006;Hagner et al 2018;Szklarek et al 2015). Interpretations of results from a battery of biotests, as an integrative assessment, provide an opportunity to identify and prioritize hotspots and actual bioavailability of contaminants, thus providing a reliable, valid and reproducible tool in the determination of ecological risk assessment (Wolska et al 2007;Wolska, Kochanowska, and Namiesnik 2009;Palma, Ledo, and Alvarenga 2016).…”

Section: Introductionmentioning

confidence: 99%

Eco-toxicity of water, soil, and sediment from agricultural areas of Kilombero Valley Ramsar wetlands, Tanzania

Materu

Heise

2019

Ecosyst Health Sustain

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This study was conducted in the KVRS to; evaluate the seasonal eco-toxicity of water, soil and sediment samples; establish the suitability of using temperate biotest batteries in tropical systems; classify the toxicity of samples using Fuzzy Rules to estimate potential ecological risks. 143 water, sediment, and soil samples were collected during dry and rainy seasons in plantation areas. Pseudokirchneriella subcapitata, Aliivibrio fischeri and Arthrobacter globiformis bioassays were used to assess the toxicity of the samples. Results were categorized and classified into toxicity classes. Dry season presented a significantly higher mean inhibition of 31% than 5% shown by rainy season samples (p < 0.001) in the bacterial bioassays, indicating a lower concentration of contaminants due to flooding and increased surface runoff. A few sediment samples resulted into 100% inhibition of A. globiformis, implying organisms were physiologically inactive upon exposure to contaminants. Seventy-three percent of samples posed little or no toxic potential risk, 25% posed critical risk and 1% posed elevated critical risk, implying the KVRS ecosystem might be at risk if the extensive usage of pesticides in the area is not well managed and monitored. The temperate micro-biotests can be used in tropical systems, but with further research on suitable organisms and standardized methods. ARTICLE HISTORY

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“…Among the forest types suffering dieback, trembling aspen ( Populus tremuloides ) ranks among the most biologically diverse vegetation communities across the Intermountain Region of western North America, and this type has been well-studied [ 5 – 9 ]. Trembling aspen mortality and overstory dieback have occurred at unusually high levels throughout Colorado and western North America over the past 15 years [ 7 ].…”

Section: Introductionmentioning

confidence: 99%

Rapid regeneration offsets losses from warming-induced tree mortality in an aspen-dominated broad-leaved forest in northern China

Zhao

Zhou

et al. 2018

PLoS ONE

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Worldwide tree mortality as induced by climate change presents a challenge to forest managers. To successfully manage vulnerable forests requires the capacity of regeneration to compensate for losses from tree mortality. We observed rapid regeneration and the growth release of young trees after warming-induced mortality in a David aspen-dominated (Populus davidiana) broad-leaved forest in Inner Mongolia, China, as based on individual tree measurements taken in 2012 and 2015 from a 6-ha permanent plot. Warming and drought stress killed large trees 10–15 m tall with a total number of 2881 trees during 2011–2012, and also thinned the upper crowns. David aspen recruitment increased 2 times during 2012–2015 and resulted in a high transition probability of David aspen replacing the same or other species, whereas the recruitment of Mongolian oak (Quercus mongolica) was much lower: it decreased from 2012 to 2015, indicating that rapid regeneration represented a regrowth phase for David aspen, and not succession to Mongolian oak. Further, we found that the recruitment density increased with canopy openness, thus implying that warming-induced mortality enhanced regeneration. Our results suggest that David aspen has a high regrowth ability to offset individual losses from warming-induced mortality. This important insight has implications for managing this vulnerable forest in the semi-arid region of northern China.

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The microbiotest battery as an important component in the assessment of snowmelt toxicity in urban watercourses—preliminary studies

Cited by 18 publications

References 37 publications

Effects of Stormwater and Snowmelt Runoff on ELISA-EQ Concentrations of PCDD/PCDF and Triclosan in an Urban River

Effects of Stormwater and Snowmelt Runoff on ELISA-EQ Concentrations of PCDD/PCDF and Triclosan in an Urban River

Eco-toxicity of water, soil, and sediment from agricultural areas of Kilombero Valley Ramsar wetlands, Tanzania

Rapid regeneration offsets losses from warming-induced tree mortality in an aspen-dominated broad-leaved forest in northern China

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