Eutrophication: A new wine in an old bottle?

The Science of The Total Environment, Journal Year: 2018, Volume and Issue: 651, P. 1 - 11

Published: Sept. 13, 2018

Language: Английский

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Toxic Cyanobacteria: A Growing Threat to Water and Air Quality

Environmental Science & Technology, Journal Year: 2020, Volume and Issue: 55(1), P. 44 - 64

Published: Dec. 18, 2020

The global expansion of harmful cyanobacterial blooms (CyanoHABs) poses an increasing threat to public health. CyanoHABs are characterized by the production toxic metabolites known as cyanotoxins. Human exposure cyanotoxins is challenging forecast, and perhaps least understood route via inhalation. While aerosolization toxins from marine algal (HABs) has been well documented, in freshwater systems remains understudied. In recent years, spray aerosol (SA) produced airshed Laurentian Great Lakes (United States Canada) characterized, suggesting that may impact atmospheric loading more than previously understood. Therefore, further investigation regarding on human respiratory health warranted. This review examines current research incorporation cells into SA aquatic ecosystems which experience HABs. We present overview cyanotoxin fate environment, biological SA, existing data relevant collection methods, adverse outcomes associated with

Language: Английский

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Biotic control of harmful algal blooms (HABs): A brief review

Journal of Environmental Management, Journal Year: 2020, Volume and Issue: 268, P. 110687 - 110687

Published: May 3, 2020

Language: Английский

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Mitigating eutrophication and toxic cyanobacterial blooms in large lakes: The evolution of a dual nutrient (N and P) reduction paradigm

Hydrobiologia, Journal Year: 2019, Volume and Issue: 847(21), P. 4359 - 4375

Published: Oct. 29, 2019

Language: Английский

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Cyanobacterial Harmful Algal Blooms in Aquatic Ecosystems: A Comprehensive Outlook on Current and Emerging Mitigation and Control Approaches

Microorganisms, Journal Year: 2021, Volume and Issue: 9(7), P. 1472 - 1472

Published: July 9, 2021

An intensification of toxic cyanobacteria blooms has occurred over the last three decades, severely affecting coastal and lake water quality in many parts world. Extensive research is being conducted an attempt to gain a better understanding driving forces that alter ecological balance bodies biological role secondary metabolites, toxins included, produced by cyanobacteria. In long-term, such knowledge may help develop needed procedures restore phytoplankton community pre-toxic era. short-term, mission scientific novel approaches mitigate thereby ability affected communities enjoy waters. Here, we critically review some recently proposed, currently leading, potentially emerging mitigation in-lake methodologies applications relevant drinking-water treatment.

Language: Английский

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Persistent eutrophication and hypoxia in the coastal ocean

Cambridge Prisms Coastal Futures, Journal Year: 2023, Volume and Issue: 1

Published: Jan. 1, 2023

Abstract Coastal eutrophication and hypoxia remain a persistent environmental crisis despite the great efforts to reduce nutrient loading mitigate associated damages. Symptoms of this have appeared spread rapidly, reaching developing countries in Asia with emergences Southern America Africa. The pace changes underlying drivers not so clear. To address gap, we review up-to-date status mechanisms global coastal oceans, upon which examine trajectories over 40 years or longer six model systems varying socio-economic development statuses different levels histories eutrophication. Although these share common features eutrophication, site-specific characteristics are also substantial, depending on regional setting level social-economic along policy implementation management. Nevertheless, ecosystem recovery generally needs greater reduction pressures compared that initiated degradation becomes less feasible achieve past norms time anthropogenic ecosystems. While qualitative causality between consequences is well established, quantitative attribution remains difficult especially when consider social economic because ecosystems subject multiple influences cause–effect relationship often non-linear. Such relationships further complicated by climate been accelerating few decades. knowledge gaps limit our mechanistic understanding human-coastal ocean nexus identified, essential for science-based making. Recognizing lessons from management practices, advocate better, more efficient indexing system an advanced earth modeling framework optimal modules human dimensions facilitate evaluation effective restoration actions.

Language: Английский

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Cyanobacteria Harmful Algae Blooms: Causes, Impacts, and Risk Management

Water Air & Soil Pollution, Journal Year: 2024, Volume and Issue: 235(1)

Published: Jan. 1, 2024

Abstract Cyanobacteria harmful algal blooms (cHABs) are increasingly becoming an emerging threat to aquatic life, ecotourism, and certain real estate investments. Their spontaneous yet sporadic occurrence has made mitigation measures a cumbersome task; moreover, current trends regarding anthropogenic activities, especially in agriculture industry portend further undesirable events. Apart from the aesthetic degeneration they create their respective habitats, equally capable of secreting toxins, which altogether present grave environmental medical consequences. In this paper, we gave update on factors that influence cHABs, cyanotoxin exposure routes, public health implications, impacts fish, pets, livestock. We discussed social economic impacts, risk assessment, management problems for cHABs and, thereafter, assessed extant approaches including prevention, control, proliferation cyanobacterial blooms. light this, suggest more intensified research should be directed standardization procedures analysis. Also, provision standardized reference material quantification cyanotoxins is vital routine monitoring as well development strong situ sensors quantifying detecting HABs cells toxins waterbodies prevent adverse cHABs. investigations into natural environmentally friendly approach cyanobacteria necessary appropriate deployment artificial intelligence required. Finally, wish redirect focus authorities protecting drinking water supply sources, products, food sources contamination implement proper treatment protect citizens potential threat.

Language: Английский

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Physico-chemical treatments for the removal of cyanotoxins from drinking water: Current challenges and future trends

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 917, P. 170078 - 170078

Published: Jan. 17, 2024

Cyanobacteria are highly prevalent blue-green algae that grow in stagnant and nutrient-rich water bodies. Environmental conditions, such as eutrophication human activities, increased the cyanobacterial blooms freshwater resources worldwide. The excessive bloom formation has also resulted an alarming surge of toxins. Prolonged exposure to cyanotoxins is a potential threat natural ecosystems, animal health by spoilage quality bathing drinking water. Various molecular analytical methods have been proposed monitor their occurrence understand global distribution. Moreover, different physical, chemical, biological approaches employed control toxins mitigate occurrence. Numerous strategies engaged treatment plants (DWTPs). However, degree varies greatly primarily determined source, properties, operating parameters temperature, pH, cyanotoxin variants levels. A comprehensive compilation methods, from traditional more advanced oxidation processes (AOPs), presented for removal intracellular extracellular cyanotoxins. This review discusses effectiveness various physicochemical operations limitations DWTP, These span simple levels with varying degrees differing costs implementation. Furthermore, mitigation measures applied other toxin systems considered alternative strategies.

Language: Английский

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Toxic benthic freshwater cyanobacterial proliferations: Challenges and solutions for enhancing knowledge and improving monitoring and mitigation

Freshwater Biology, Journal Year: 2020, Volume and Issue: 65(10), P. 1824 - 1842

Published: June 11, 2020

1. This review summarises knowledge on the ecology, toxin production, and impacts of toxic freshwater benthic cyanobacterial proliferations. It documents monitoring, management, sampling strategies, explores mitigation options. 2. Toxic proliferations cyanobacteria (taxa that grow attached to substrates) occur in streams, rivers, lakes, thermal meltwater ponds, have been reported 19 countries. Anatoxin- microcystin-containing mats are most commonly (eight 10 countries, respectively). 3. Studies exploring factors promote limited a few species habitats. There is hierarchy importance environmental biological regulate with variables such as flow (rivers), fine sediment deposition, nutrients, associated microbes, grazing identified key drivers. Regulating differ among colonisation, expansion, dispersal phases. 4. New -omics-based approaches providing novel insights into physiological attributes role microorganisms facilitating their proliferation. 5. Proliferations comprised both non-toxic strains, relative proportion these factor contributing overall content each mat. 6. While events becoming more globally, we currently lack standardised detect, monitor, manage this emerging health issue. To solve critical gaps, global collaborations needed facilitate rapid transfer development techniques can be applied diverse habitats species, ultimately lead improved management.

Language: Английский

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Key fungal degradation patterns, enzymes and their applications for the removal of aliphatic hydrocarbons in polluted soils: A review

International Biodeterioration & Biodegradation, Journal Year: 2019, Volume and Issue: 147, P. 104866 - 104866

Published: Dec. 3, 2019

Language: Английский

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