Hotspots lurking underwater: Insights into the contamination characteristics, environmental fates and impacts on biogeochemical cycling of microplastics in freshwater sediments

Journal of Hazardous Materials, Год журнала: 2024, Номер 476, С. 135132 - 135132

Опубликована: Июль 7, 2024

Язык: Английский

---

Microplastic-derived dissolved organic matter: Generation, characterization, and environmental behaviors

The Science of The Total Environment, Год журнала: 2024, Номер 948, С. 174811 - 174811

Опубликована: Июль 18, 2024

Язык: Английский

---

The temperate seagrass species Cymodocea nodosa and the associated bacteria co-response to sunscreen pollution

Marine Environmental Research, Год журнала: 2025, Номер unknown, С. 107115 - 107115

Опубликована: Март 1, 2025

Язык: Английский

---

Nutrient enrichment and herbivory alter carbon balance in temperate seagrass communities

Marine Pollution Bulletin, Год журнала: 2024, Номер 206, С. 116784 - 116784

Опубликована: Июль 30, 2024

Large nutrient levels and herbivory stress, particularly when acting together, drive a variety of responses in seagrass communities that ultimately may weaken their carbon balance. An situ three-months experiment was carried out two contrasting seasons to address the effects load three artificial clipping on Cymodocea nodosa plants. Nutrient enrichment shifted community from autotrophic heterotrophic reduced DOC fluxes winter, whereas enhanced metabolism summer. Herbivory stress decreased net primary production both seasons, release increased winter but A reduction food-web structure observed under disturbances evidencing impacts ecosystems services by altering transfer process loss superficial OC, which finally blue storage capacity these communities.

Язык: Английский

---

Environmental consequences of interacting effects of changes in stratospheric ozone, ultraviolet radiation, and climate: UNEP Environmental Effects Assessment Panel, Update 2024

Photochemical & Photobiological Sciences, Год журнала: 2025, Номер unknown

Опубликована: Март 17, 2025

Abstract This Assessment Update by the Environmental Effects Panel (EEAP) of United Nations Environment Programme (UNEP) addresses interacting effects changes in stratospheric ozone, solar ultraviolet (UV) radiation, and climate on environment human health. These include new modelling studies that confirm benefits Montreal Protocol protecting ozone layer its role maintaining a stable climate, both at low high latitudes. We also provide an update projected levels UV-radiation during twenty-first century. Potential environmental consequences intervention scenarios are briefly discussed, illustrating large uncertainties of, for example, Stratospheric Aerosol Injection (SAI). Modelling predict that, although SAI would cool Earth’s surface, other factors be affected, including depletion precipitation patterns. The contribution to global warming replacements ozone-depleting substances (ODS) assessed. With respect breakdown products chemicals under purview Protocol, risks ecosystem health from formation trifluoroacetic acid (TFA) as degradation product ODS currently de minimis . change continue have complex interactive due largely activities. UV-radiation, weathering factors, microbial action contribute significantly plastic waste environment, affecting transport, fate, toxicity plastics terrestrial aquatic ecosystems, atmosphere. Sustainability demands drive industry innovations mitigate use disposal plastic-containing materials. Terrestrial ecosystems alpine polar environments increasingly being exposed enhanced earlier seasonal snow ice melt because extended periods depletion. Solar contributes decomposition dead plant material, which affects nutrient cycling, carbon storage, emission greenhouse gases, soil fertility. In loss cover is increasing area oceans with possible negative phytoplankton productivity. However, Arctic Ocean circulation suggests circulating progressively deeper ocean layers less UV irradiation. Human modified behaviour patterns, resulting exposure harmful or beneficial depending conditions skin type. For incidence melanoma has been associated increased air temperature, time spent outdoors thus UV-radiation. Overall, implementation Amendments mitigated deleterious

Язык: Английский

---

Trapping of microplastics and other anthropogenic particles in seagrass beds: Ubiquity across a vertical and horizontal sampling gradient

Marine Environmental Research, Год журнала: 2024, Номер 197, С. 106487 - 106487

Опубликована: Апрель 2, 2024

Язык: Английский

---

Impacts of climatic stressors on dissolved organic matter leaching from microplastics and their effects on biogeochemical processes: A review

Water Research, Год журнала: 2024, Номер 271, С. 122867 - 122867

Опубликована: Ноя. 28, 2024

Язык: Английский

---

Investigating the potential uptake of microplastic-derived carbon into a boreal lake food web using carbon-13 labelled plastic

FACETS, Год журнала: 2025, Номер 10, С. 1 - 9

Опубликована: Янв. 1, 2025

Microplastics degrade slowly over time, leaching carbon (C) that could be subsequently incorporated into aquatic food webs. Current estimates of microplastic degradation vary, and little is known about microplastic-derived C fate under natural environmental conditions. To investigate whether microplastics leach webs, we added isotopically enriched to Lake 378 at the Experimental Lakes Area in Ontario, Canada. In an ∼1100 L limnocorral (in situ open-bottom enclosure), 99% 13 C-labelled polystyrene (8–216 µm longest dimension) a nominal concentration 3268 particles/L. A second without served as negative control. Monthly measurements δ C-DIC C-DOC filtered water revealed no detectable from plastic. Compound-specific isotope analysis amino acids bulk plankton periphyton slight (0.5‰) enrichment C, within range variability for these organisms. Under conditions temperate oligotrophic lakes, likely very slow process was not possible detect this 4-month experiment. Future studies should focus on assessing realistic field scenarios improve pathways associated time scales.

Язык: Английский

---

Plastic carbon in the ocean

Current Opinion in Chemical Engineering, Год журнала: 2025, Номер unknown, С. 101101 - 101101

Опубликована: Фев. 1, 2025

Язык: Английский

---

Functionalized textile microplastics: A closer look at the issues, strategy, and legislation on the microplastic reduction

Kuwait Journal of Science, Год журнала: 2025, Номер unknown, С. 100395 - 100395

Опубликована: Март 1, 2025

Язык: Английский

---