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lethalconcentration50, etc ; Folsomia candida; Porcellio scaber; acetylcholinesterase; bioavailability; chlorpyrifos; death; electron transfer; microplastics; plant protection; polyesters; reproduction; sewage sludge; soil; soil ecology; toxicity; traffic; Show all 17 Subjects
Abstract:
... Synthetic fibers released from sewage sludge and tire particles released from traffic are among the most common types of microplastics in soil. In soil, microplastics may interact with chemicals, such as plant protection products used in agriculture. Most studies on the interactions of microplastics and chemicals focused on aquatic environments and only few addressed soil arthropods. To increase t ...
lethalconcentration50, etc ; Macrobrachium rosenbergii; ammonia; aquaculture; postlarvae; Show all 5 Subjects
Abstract:
... This study aimed to determine the median lethal concentration (LC₅₀) of total ammonia and nitrite's combined effect for Macrobrachium amazonicum and Macrobrachium rosenbergii post-larvae at 96 h of exposure and then present their safety levels. In the trial 640 post-larvae of M. amazonicum (2.2 ± 0.2 cm and 0.08 ± 0.02 g) and 640 post-larvae of M. rosenbergii (2.2 ± 0.3 cm and 0.07 ± 0.02 g) were ...
Joice Guilherme de Oliveira; Harry Luiz Pilz-Júnior; Alessandra Bittencourt de Lemos; Felipe Allan da Silva da Costa; Millena Fernandes; Douglas Zelinger Gonçalves; Paula Fassicolo Variza; Fernanda Mendes de Moraes; Fernando Dal Pont Morisso; Rachel Faverzani Magnago; Karine Modolon Zepon; Luiz Alberto Kanis; Onilda Santos da Silva; Josiane Somariva Prophiro
lethalconcentration50, etc ; Aedes aegypti; Piper; alkaloids; encapsulation; larvicides; mortality; Show all 7 Subjects
Abstract:
... Piperine is an alkaloid extracted from the seed of Piper spp., which has demonstrated a larvicidal effect against Ae. aegypti. The incorporation of piperine into nanostructured systems can increase the effectiveness of this natural product in the control of Ae. aegypti larvae. In this study, we evaluated the effectiveness of piperine loaded or not into two nanostructured systems (named NS-A and NS ...
lethalconcentration50, etc ; Chironomus dilutus; clothianidin; methomyl; midges; pollution; thiamethoxam; water quality; Show all 8 Subjects
Abstract:
... Organism tolerance thresholds for emerging contaminants are vital to the development of water quality criteria. Acute (96-h) and chronic (10-day) effects thresholds for neonicotinoid pesticides clothianidin and thiamethoxam, and the carbamate pesticide methomyl were developed for the midge Chironomus dilutus to support criteria development using the UC Davis Method. Median lethal concentrations (L ...
lethalconcentration50, etc ; 2,4-D; Rhinella arenarum; death; glyphosate; pollution; research; toxicity; Show all 8 Subjects
Abstract:
... Glyphosate and 2,4-D are two herbicides commonly used together. Since there is little information about the interactions between these pesticides, the aim of this study was to evaluate the single and joint lethal toxicity of the glyphosate-based herbicide (GBH) ATANOR® (43.8% of glyphosate, isopropylamine salt) and the 2,4-D-based herbicide (2,4-DBH) Así Max 50® (602000 mg/L of 2,4-D) on Rhinella ...
lethalconcentration50, etc ; acute toxicity; disinfection; oxidation; photocatalysis; photocatalysts; wastewater; water treatment; Show all 8 Subjects
Abstract:
... Defect construction and rare earth doping are the linchpins to completing the target of partial electronic regulation. In Er³⁺/Sm³⁺ co-doping Bi₂O₂CO₃, rare earth doping resulted in the exposure of {001} crystal plane in Bi₂O₂CO₃ and cause surface defects and electron traps, achieving wide light response capability and fast carrier separation. Furthermore, a potential TC degradation route was ackn ...
lethalconcentration50, etc ; Barbonymus gonionotus; blood glucose; erythrocytes; hematocrit; hemoglobin; pesticides; probiotics; Show all 8 Subjects
Abstract:
... The experiment was conducted to clarify sumithion induced hematoxicity in silver barb (Barbonymus gonionotus) through in vivo exposures (25 % and 50 % of LC₅₀ of sumithion) and subsequent recovery patterns using normal and probiotic treated feed were also assessed. Three treatments each incorporating three replications were used in the experiment for different days (1, 7, 14, 21, and 28). Treatmen ...
lethalconcentration50, etc ; environment; exposure duration; hydroxylamine; nitrates; nitrites; risk; toxicity; ultraviolet radiation; Show all 9 Subjects
Abstract:
... Previous studies have reported increased aquatic toxicity of UV-degraded nitroguanidine (NQ), but many details underlying the dynamics of NQ degradation and toxicity remain unknown. These data gaps represent critical barriers to assessing the environmental relevance of laboratory-generated UV-degradation results and extrapolation to environmental risk. In the present study, the toxicity of NQ incr ...
lethalconcentration50, etc ; Onychiuridae; fecundity; indicator species; oviposition; population size; soil; soil pollution; Show all 8 Subjects
Abstract:
... Soil contamination by hydrocarbons and its effects on population health and welfare is a growing concern, especially in urban environments with industrial activity. Indicator species complement the information obtained from the measurement of environment quality by using physicochemical variables. The objective of this study was to evaluate the response of a springtail species that could be potent ...
lethalconcentration50, etc ; acute toxicity; models; pesticides; prediction; quantitative structure-toxicity relationships; regression analysis; research; Show all 8 Subjects
Abstract:
... Globally, pesticides are toxic substances with wide applications. However, the widespread use of pesticides has received increasing attention from regulatory agencies due to their various acute and chronic effects on multiple organisms. In this study, Quantitative Structure-Toxicity Relationship (QSTR) models were established using Multiple Linear Regression (MLR) and five Machine Learning (ML) al ...
lethalconcentration50, etc ; Tigriopus japonicus; acute toxicity; aquatic environment; leachates; microplastics; models; stearic acid; zinc; Show all 9 Subjects
Abstract:
... Tire wear particles (TWPs) have been characterized as microplastics in recent years, and many of these TWPs will be eventually deposited in coastal areas, leading to adverse effects to marine organisms. Results of the acute toxicity test in this study showed that the 96-h LC50 values of the particles and leachate were 771.4 mg/L (95% CI = 684.4–869.6 mg/L) and 5.34 g/L (95% CI = 4.75–6.07 g/L), re ...
lethalconcentration50, etc ; Danio rerio; bioaccumulation; depuration; environmental fate; human health; pharmacokinetics; toxicity; white light; Show all 9 Subjects
Abstract:
... and poly-fluoroalkyl substances (PFAS) are receiving attention due to their persistence, and potential adverse effects on environmental and human health. Efforts to reduce long-chained PFAS (≥C8) compounds were implemented in 2006 as a part of “PFOA Stewardship Program Initiative” (PFOA–perfluorooctanoic acid). Short-chained PFAS (
lethalconcentration50, etc ; aquatic organisms; artificial intelligence; chemical structure; data collection; databases; ecotoxicology; neural networks; toxicity; Show all 9 Subjects
Abstract:
... Species Sensitivity Distribution (SSD) is a key metric for understanding the potential ecotoxicological impacts of chemicals. However, SSDs have been developed to estimate for only handful of chemicals due to the scarcity of experimental toxicity data. Here we present a novel approach to expand the chemical coverage of SSDs using Artificial Neural Network (ANN). We collected over 2000 experimental ...
lethalconcentration50, etc ; acetonitrile; chlorination; chloroform; coagulation; cytotoxicity; disinfection; environmental science; inorganic carbon; mineralization; ozone; turbidity; Show all 12 Subjects
Abstract:
... When organic compounds are pre-oxidized before coagulation, the disinfection byproducts are usually generated in the following chlorination process in drinking water treatment. In this study, the effects of pre-oxidation on carbon removal and generation of disinfection byproducts were investigated by using common oxidants of ozone, permanganate and ferrate. It was demonstrated that turbidities wer ...
lethalconcentration50, etc ; Callosobruchus maculatus; eggs; entomology; exposure duration; fumigation; insecticide resistance; mortality; phosphine; toxicity; India; Show all 11 Subjects
Abstract:
... Bruchids pose serious threat to stored pulses, and their successful management largely depends on phosphine fumigation. For the first time, the comparative assessment of phosphine toxicity to all the developmental stages of three bruchid species in India was attempted at varied concentrations and exposure times. Based on probit estimates, the egg stages found to be least sensitive to phosphine fol ...
... Artificial incubation is an effective way to increase the supply of red claw crayfish seed. In order to explore the effects of nitrite, ammonia nitrogen and pH on the eggs and nitrite on juvenile during in artificial incubation, four experiments were carried out. The results of Experiment I showed: (1) the hatching rate was less affected by nitrite, while the survival rate was greatly affected by ...
lethalconcentration50, etc ; bioremediation; clay; earthworms; ecotoxicology; equations; meta-analysis; pollutants; soil; soil organic matter; soil remediation; Show all 11 Subjects
Abstract:
... Using earthworms to remove soil organic pollutants is a common bioremediation method. However, it remains challenging to evaluate and predict their effect on removing soil organic pollutants based on earthworm toxicology and pollutant degradation rates. Peer-reviewed journal articles on ecotoxicology and bioremediation from the years 1974–2020 (cutoff date September 2020) were selected for meta-an ...
lethalconcentration50, etc ; Aedes aegypti; Derris elliptica; active ingredients; bioassays; dengue; hexane; larvicides; temephos; toxicity; vector control; Show all 11 Subjects
Abstract:
... Sayono S, Anwar R, Sumanto D. 2021. Larvicidal activity evaluation of the chemical compounds isolated from n-hexane extract of Derris elliptica root against the Temephos-susceptible strain of Aedes aegypti larvae. Biodiversitas 23: 757-764. Aedes aegypti is the main vector of Dengue, Chikungunya, and Zika diseases. Temephos resistance of this species has hampered vector control efforts worldwide. ...
... The present study was taken up to evaluate the synergistic properties of piperonyl butoxide (PBO), diethyl maleate (DEM), triphenyl phosphate (TPP) and verapamil (VER) with deltamethrin (DLM) and ivermectin (IVM) against DLM and IVM resistant tick populations collected from Madhya Pradesh and Punjab states of India. The collected field tick populations were resistant to DLM (Resistance Factor [RF] ...
lethalconcentration50, etc ; Daphnia magna; byproducts; chemical composition; chronic toxicity; death; environment; freshwater; invertebrates; mortality; risk assessment; Show all 11 Subjects
Abstract:
... Large stores of previously inaccessible hydrocarbons have become available due to the development of hydraulic fracturing technologies. During the hydraulic fracturing process, a mixture of water and proprietary additives is injected into geologic formations to release trapped hydrocarbons. After fracturing, injected water and fluid from the target formation return to the surface as flowback and p ...