The secondary outbreak risk and mechanisms of Microcystis aeruginosa after H2O2 treatment

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 470, P. 134196 - 134196

Published: April 2, 2024

Language: Английский

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Evaluating the tolerance of harmful algal bloom communities to copper

Environmental Pollution, Journal Year: 2025, Volume and Issue: unknown, P. 125691 - 125691

Published: Jan. 1, 2025

Language: Английский

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Exploration of Anthropogenic Metal Pollution in Water Sediments: Utilization of a Microwave Plasma Emission Spectrometer in the Field of Environmental Forensic Sciences

Environmental Forensics, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 12

Published: April 17, 2025

Language: Английский

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Harmful Cyanobacterial Bloom Control with Hydrogen Peroxide: Mechanism, Affecting Factors, Development, and Prospects

Current Pollution Reports, Journal Year: 2024, Volume and Issue: 10(4), P. 566 - 579

Published: Aug. 10, 2024

Language: Английский

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HABS-BLOCKS© Inhibited Microcystis and Planktothrix and Reduced Microcystin Concentrations in a Lake Water Mesocosm Study

Microorganisms, Journal Year: 2025, Volume and Issue: 13(5), P. 1074 - 1074

Published: May 5, 2025

Toxins produced by cyanobacteria are a threat to drinking water and the aquatic ecosystem. Previously, we reported that adding glucose lake could reduce cyanobacterial populations. To target euphotic zone, floating HABS-BLOCKS© infused with were created. On 12 June 2024, 24 L of bloom was collected, then 6 aliquoted into each four 7 mesocosms. Two added two replicate treatment mesocosms, while “Dummy” (same but without glucose) control Cyanobacteria cell densities microcystin concentrations measured weekly. Total nitrogen phosphorus other quality variables including dissolved oxygen, specific conductivity, turbidity at end six-week experiment. Initially, Microcystis 2.4 × 103 cells/mL Planktothrix 5.0 102 cells/mL. After weeks, both population significantly lower in treated mesocosms compared controls. The initial concentration averaged 10.4 µg/L. By third week experiment, about 70% also HABS-BLOCKS©-treated mesocosm, measures similar between appeared densities, toxin concentrations, total not having negative impacts on measures. Although much remains be learned, this technology may someday useful suppressing HABS.

Language: Английский

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Using total adenosine triphosphate (tATP) measurements for cyanobacterial bloom monitoring and response assessment during algaecide treatments

Water Research, Journal Year: 2024, Volume and Issue: 255, P. 121517 - 121517

Published: March 24, 2024

Total adenosine triphosphate (tATP) was investigated for its potential as a rapid indicator of cyanobacterial growth and algaecide effectiveness. tATP other common bloom monitoring parameters were measured over the cycles cyanobacteria green algae in laboratory cultures examined at drinking water source during an active bloom. Strong correlations (R2>0.78) observed between chlorophyll-a cultures. offered greater sensitivity by increasing two orders magnitude approximately 7 d before changes or optical density observed. Increases per cell coincided with onset exponential phases lab increase abundance field samples, suggesting that ATP/cell is sensitive may be used to identify development blooms. Bench-scale trials using samples harvested showed exhibited clear dose-response copper sulfate (CuSO4) hydrogen peroxide (H2O2) treatment compared counts, indicating cellular production storage ATP decreases even when live dead cells cannot distinguished. During Copper (Cu) application reservoir source, counts decreased following initial application; however, rebounded within 14 showing Cu only has limited In this case, rebounding after treatments correlated positively (R2=0.7). These results support use valuable complementary tool utilities implement

Language: Английский

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Navigating aquaculture losses: Tackling fish‐killing phytoflagellates in a changing global landscape

Reviews in Aquaculture, Journal Year: 2024, Volume and Issue: 16(4), P. 2023 - 2033

Published: July 4, 2024

Abstract Aquaculture has emerged as a pivotal alternative for seafood production, addressing the challenges posed by depleting wild fish stocks. However, industry faces substantial challenges, notably presence of harmful algal blooms (HABs), which can cause serious economic consequences. The proliferation major species phytoflagellates leading to massive mortality is on rise, possibly attributed increasing global temperatures and eutrophication. This underscores critical need robust detection, prevention, mitigation strategies safeguard aquaculture industry. contribution offers valuable insights into comprehending HABs in sector an era change.

Language: Английский

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Unveiling the susceptibility mechanism of Microcystis to consecutive sub-lethal oxidative stress—Enhancing oxidation technology for cyanobacterial bloom control

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 480, P. 135993 - 135993

Published: Sept. 30, 2024

Language: Английский

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Harmful algal blooms in agricultural irrigation: risks, benefits, and management

Frontiers in Water, Journal Year: 2023, Volume and Issue: 5

Published: Nov. 29, 2023

Harmful algal blooms (HABs) have garnered increasing attention due to their adverse effects on water quality, aquatic ecosystems, and animal human health. Prior research suggests that HAB-contaminated containing toxins can significantly affect the development of plant structures inhibit essential physiological processes. However, potential benefits risks using sourced from local bodies for agricultural irrigation is not completely understood. This perspective paper delves into origins impacts HABs, environmental repercussions use in irrigation, management strategies mitigate associated sustainable agriculture. Future studies are needed validate practical HABs enhancement soil health overall crop growth productivity.

Language: Английский

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Control of Cyanobacterial Algal Blooms and Soluble Reactive Phosphorus Using PAK-27 and Phoslock®

Water Conservation Science and Engineering, Journal Year: 2024, Volume and Issue: 9(2)

Published: Sept. 18, 2024

Abstract Cyanobacterial harmful algal blooms (cHABs) can pose a threat to human health and aquatic ecosystems when they release cyanotoxins in water. This research used samples from two northeastern reservoirs Ohio assessed (i) the effectiveness of PAK-27 dosages, (ii) potential interference natural organic matter (NOM) on effectiveness, (iii) ability Phoslock® adsorb phosphorus released during cell lysis prevent future bloom formation. was applied either quarter (15 mg) or full (58 dose 1.6 L. Two sets jars were amended with 200:1 Phoslock®:phosphorus 24 h after application assess adsorption upon lysis. A final set 5 mg NOM evaluate if would interfere effectiveness. Quarter doses significantly decreased total phycocyanin content within 2 days ( p < 0.05). However, addition influenced nutrient availability response. All that received algaecide had increased extracellular microcystin levels Although adsorbed soluble reactive (SRP), treated only reduced more SRP than Phoslock®. Graphical

Language: Английский

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