Toxicity of neutralized wastes following a synthesis of chlorinated hydrocarbons to Daphnia magna and Chlorella sp.

Demkowicz-Dobrzański, K.; Nałęcz-Jawecki, Grzegorz; Wawer, Z.; Bargiel, T.; Żak, Magdalena; Sawicki, J.

doi:10.1016/s0048-9697(05)80119-6

Cited by 3 publications

(2 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The nominal size range was confirmed the nominal mean equivalent spherical diameter of 4 ± 1 μm. To prevent adherence to the surface film and homo-aggregation of microplastic, a surfactant was added at a non-toxic concentration (0.01% w/w, Tween 80, P1754 Sigma-Aldrich) [26].…”

Section: Methodsmentioning

confidence: 99%

Microplastic-mediated transport of PCBs? A depuration study with Daphnia magna

et al. 2019

View full text Add to dashboard Cite

The role of microplastic (MP) as a carrier of persistent organic pollutants (POPs) to aquatic organisms has been a topic of debate. However, the reverse POP transport can occur if relative contaminant concentrations are higher in the organism than in the microplastic. We evaluated the effect of microplastic on the PCB removal in planktonic animals by exposing the cladoceran Daphnia magna with a high body burden of polychlorinated biphenyls (PCB 18, 40, 128 and 209) to a mixture of microplastic and algae; daphnids exposed to only algae served as the control. As the endpoints, we used PCB body burden, growth, fecundity and elemental composition (%C and %N) of the daphnids. In the daphnids fed with microplastic, PCB 209 was removed more efficiently, while there was no difference for any other congeners and ΣPCBs between the microplastic-exposed and control animals. Also, higher size-specific egg production in the animals carrying PCB and receiving food mixed with microplastics was observed. However, the effects of the microplastic exposure on fecundity were of low biological significance, because the PCB body burden and the microplastic exposure concentrations were greatly exceeding environmentally relevant concentrations.

show abstract

Section: Methodsmentioning

confidence: 99%

Microplastic-mediated transport of PCBs? A depuration study with Daphnia magna

et al. 2019

View full text Add to dashboard Cite

show abstract

“…The size range was confirmed to be 1-5 µm with a mean equivalent spherical diameter of 4±1.0 µm. To prevent adherence to the surface film and homo-aggregation of microplastic, a surfactant was added at a non-toxic concentration (0.01% w/w, Tween 80, P1754 Sigma-Aldrich)[26].…”

Section: Microplasticmentioning

confidence: 99%

Microplastic-mediated transport of PCBs? A depuration study with Daphnia magna

Gerdes

Ogonowski

Nybom

et al. 2018

Preprint

View full text Add to dashboard Cite

17The role of microplastic (MP) as a carrier of persistent organic pollutants (POPs) to 18 aquatic organisms has been a topic of debate. However, theoretically, the reverse POP 19 transport can occur at higher relative contaminant concentrations in the organism than in the 20 microplastic. The effect of microplastic on the PCB removal in planktonic animals was 21 evaluated using the cladoceran Daphnia magna with a high body burden of polychlorinated 22 biphenyls (PCB 18, 40, 128 and 209) exposed to a mixture of microplastic and algae (with 23 77% MP by mass); daphnids exposed to only algae served as the control. As the endpoints, 24 we used PCB body burden, growth, fecundity and elemental composition (%C and %N) of 25 the daphnids. We found that PCB 209 was removed more efficiently in the daphnids fed with 26 microplastic, while there was no difference for the ΣPCBs between the microplastic-exposed 27 and control animals. Effects of the microplastic exposure on fecundity were of low biological 28 significance, even though both the starting PCB body burden and the microplastic exposure 29 concentrations were high and greatly exceeding environmentally relevant concentrations. 30 2 31 32 Microplastic (MP, particles < 1 mm [1]) are emerging contaminant in our 33 environments. Concerns have been expressed that microplastic may compromise feeding of 34 aquatic organisms and facilitate transfer of organic pollutants in food webs [2,3]. Indeed, 35 these small plastic fragments are being ingested by a variety of organisms, e.g. fish [4], 36 bivalves [5], polychaetes [6], and zooplankton [7], with still unknown consequences. 37 Commonly reported effects of microplastic exposure include decreased food intake [8] and 38 increased chemical exposure, for example, via leakage of potentially toxic additives [9] or 39 chemicals sorbed to microplastic particles surface from ambient water [10]. 40 Filter-feeders are vulnerable to potential impacts of microplastics. Negative effects 41 of pristine microplastic on food intake and growth have been reported for a range of 42 zooplankton, e.g. the cladoceran Daphnia magna [11] and the copepod Calanus 43 helgolandicus [8], albeit at high concentrations of microplastics used in the experiments. 44 Moreover, for these animals at the lower trophic levels, the exposure to environmental 45 contaminants absorbed to microplastic is of particular relevance for bioaccumulation in the 46 food web and contaminant transfer to higher consumers. Therefore, it is important to 47 establish whether organic and inorganic contaminants can be transferred when planktonic 48 filter-feeders ingest microplastic [13,14]. Because persistent organic pollutants (POPs), such 49 as polychlorinated biphenyls (PCBs), are hydrophobic, they have strong partitioning towards 50 plastic and compartments that are rich in organic carbon, e.g. biota and sediment [14]. Due to 51 their physicochemical properties, e.g., high plastic-water partition coefficient combined with 52 a high surface to volume ratio, microplastic particl...

show abstract