Microalgae may suffer toxic effects as inhabitants of pelagic areas contaminated with microplastics. Furthermore, as primary producers essential to the functioning of aquatic ecosystems (Casado et al., 2013), small disruptions of microalgae populations may lead to serious repercussions on food webs.Even so, the effects and toxicity of microplastics have …
Metal nanoparticles from combustible materials, mining explosions, volcanic eruptions, and industrial processes are the majority source of atmospheric deposition. ... Molecular Impacts of Nanoparticles on Plants and Algae covers molecular mechanisms of plants/algae related to cellular uptake, translocation of nanoparticles, and genome ...
A previous study indicated that Scenedesmus obliquus, a type of green algae, efficiently assimilated N and P from municipal wastewater, resulting in TN and TP removal rates of 95% and 97%, respectively (He et al., 2022). This aligns with our findings of better N and P removal in MBGS where green algae comprised the main phototrophs.
So, this Mn can induce an iron deficiency in some algae, especially in blue-green algae which inhibits the synthesis of chlorophyll. The terrestrial plants showed various symptoms due to the toxicity level of Mn in an environment which include marginal chloroses, necrotic lesions, and distorted development of leaves [ 45 ].
Acidic leachates from waste rock dams from pyritic and (to a lesser extent) coal mining are the main foci of Acid Mine Drainage (AMD) production. When AMD is incorporated …
Rae-Ann Eifert, a lake monitor for the Wisconsin Department of Natural Resources, braved sub-freezing temperatures to gather buckets of water for testing off a Lake Michigan breakwater in Racine, Wis., on Feb. 28, 2024, as part of an effort across the Great Lakes to understand the effects of an iceless winter.
We used a mesocosm to test the effects of potash mining on river ecosystems. • We tested both press and pulse (i.e. 48 h long) releases. • Salt addition promoted algal …
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When invasive algae develop into a dominant local species, it inevitably results in immense consequences on the ecosystem biodiversity. This not only affects the resilience to local assemblage disturbances but also alters the ecosystem characteristics of key communities, such as the community abundance, resource allocation, nutrient acquisition rates, and competition …
Mirex, a further organochlorine, seemed to have no impact on ocean micro algae at 0.2 mg L −1, despite being doses 10,000 times either by algae (Nieder et al., 2018). In another investigation, about 100 mg L −1 of mirex as well as methoxychlor impeded the algal growth slightly ( hui Shan et al., 2022 ).
• The acidified condition had the greatest impact over physiology of both species. • The toxicity effects of mining tailings are intensified by abiotic changes. Abstract
Pacific Northwest National Laboratory (PNNL) is studying methods to efficiently extract rare earth elements and platinum group metals from "biological ore": hyper-accumulating species of …
The Arieş River (Western Romania) represents one of the most important affluents of the Mureş River, with great significance in the Mureş Tisza basin. The environmental quality of the Arieş basin is significantly affected by both historic mining activities and contemporary impacts. Thus, an evaluati …
Understanding the impact of mining on air quality. Mining operations contribute significantly to poor air quality across the globe. Both above-ground and underground mining processes produce air pollution and …
The targeted outcomes of this topic are: An understanding of what environmental, temporal and ecological factors influence the PGM/REE metal content of ocean-grown macroalgae; …
Here, we tested the effects of a salt effluent coming from a potash mining tailing heap in the River Werra basin (Germany) on algal and aquatic invertebrate communities at different concentrations (similar to those currently registered in the River Werra, impacted by potash mining) and different salt disposal schemes (i.e. pulse versus press ...
The direct and indirect effects of mining tailing on macroalgae were evaluated in vitro to determine the relationship between heavy metals toxicity and pH alterations caused by the presence of pollutants.
Dredging is vital for maintaining navigable waterways, supporting maritime trade, and removing contaminated sediments. However, it can disrupt ecosystems through increased turbidity, contaminant release, and habitat destruction. As a result, responsible management is needed to strike a balance between enabling economic progress through dredging and …
The goal of this study is to analyze the impact of temporal patterns of TP loading on Cladophora growth using the integrated modeling approach. The study area is the Rochester Embayment in Lake Ontario (Fig. 1).A watershed hydrological model for the Genesee River, the primary tributary discharging to the Rochester Embayment, was developed using the Soil …
Managing the impacts of mining on Ghana's water resources from a legal perspective. JENRM, Vol. I (3): 156-165. Gyang, J. D. and Ashano, E. C. (2010). Effects of Mining on Water Quality and the Environment: A Case Study of Parts of the Jos Plateau, North Central Nigeria. The Pacific Journal of Science and Technology, Vol. 11(1): 631–639.
Potentially toxic elements (PTEs) pose a significant threat to aquatic ecosystems. This study investigated the content and potential sources of PTEs (Cr, Mn, Ni, Cu, Zn, Cd, Pb) in water, sediment, and dominant aquatic plants (Hydrilla verticillata and Spirogyra varians) in the Xiaojiang River, located near the Zhaiying manganese mine in Guizhou Province, China. …
This study investigated the effects of herbicide exposure on Navicula sp. (MASCC-0035) algae, focusing on growth density, chlorophyll content, antioxidant system, and lipid metabolism. Navicula cultures were exposed to different concentrations of atrazine (ATZ), glyphosate (Gly), and acetochlor (ACT) for 96 h. Results showed a significant decrease in cell …
During the cultivation, both algae activity (algae abundance and energy intensity) and metabolite secretion (protein-like and polysaccharide-like substances) were regularly investigated referring to the methods in Section 2.4. The algae at stationary phase were used for preparing different feed solution referring to Section 2.3.2.
2.4.1.The effects of temperature variation (T), algal cell size (x) and zooplankton body size (y) on the permanence of the deterministic model (1). The analysis indicates that the plane can be divided into two parts by parameters C (x, y) and α, where the region enclosed by the curve and α coordinate axis represents the permanence of model (1), as shown in Fig. 1.
Natural alkalinity generation by microbial sulphate reduction in acidic lakes is usually inhibited by the low pH and a low primary production which results in a lack of suitable organic carbon sources. In some acidic mining lakes mass developments of filamentous benthic algae occur. The effects of this periphyton layer on the biogeochemistry of the sediment–water …
Abiotic analyses expose typical features of acid mine drainage and support an inverse relationship between chemical contamination and biological diversity. Factorial correspondence analysis indicates three groups of …
Systemic Effects: Cumulative exposure over time or exposure to high concentrations of lithium compounds contribute to systemic health effects, including kidney and neurological damage resulting from medical use of oral lithium carbonate to treat psychiatric conditions; however, no occupational long-term exposure levels or
Some algae inhabit water constantly polluted with wastes containing heavy metals from mining and smelting operations. Nodularia sp., Oscillatoriaamphibia sp., Cladophora sp., Hormidium …
In the present study, we demonstrate how the human impact on land use, more precisely via the contamination of iron resulting from lignite mining is able to alter these …
The geological activity in Tasmania has resulted in abundant ore deposits that were extracted in the 19th and 20th centuries for gold, copper, lead, zinc, tin and silver (McQuade et al., 1995).One such region, Queenstown, was mined extensively from the late 1800's (Corbett, 2001) and has been a focus area to study the impacts of mining on the environment (Augustinus et …
Impact of permanganate with polyaluminium chloride on algae-laden karst water: Behaviors and disinfection by-products control Author links open overlay panel Yu Qian a, Mengxin Yu a, Runyu Zhang b, Zhikang Wang a
The ecological impacts of sand mining extend beyond the aquatic environment, affecting diverse ecosystems such as wetlands, coastal dunes, and riparian habitats. Habitat destruction, loss of biodiversity, and disruption of ecological ... inhibiting photosynthesis in aquatic plants and algae. As a result, primary productivity decreases ...
Besides, benthic algae was an important food resource for scrapers, while its biomass was very low at impacted sites due to AMD impact (Figure 4), thus limiting the growth of scrapers (Niyogi et ...
Light is the main energy source for microalgae, and the intensity and wavelength of light influence cell metabolism and biomass composition, which, in turn, affects wastewater treatment.
While the effects of illegal mining have high stakes for humanity and the environment, conscious consumerism can help curb their impact. Further reading: The Negative Effects of Consumerism Because of the heavy campaigning around the conflict diamond trade, the Kimberley Process was introduced in 2003.
How does the use of algae biodiesel impact the cost of cryptocurrency mining? himanshumeena Sep 12, ... How does this alternative fuel source impact the expenses associated with mining digital currencies? Cryptocurrency. Mining. Algae Biodiesel. 5. answers.