From Bulk to Nano: Formation, Features, and Functions of Nano-Black Carbon in Biogeochemical Processes

Environmental Science & Technology, Journal Year: 2024, Volume and Issue: 58(36), P. 15910 - 15925

Published: Aug. 27, 2024

Globally increasing wildfires and widespread applications of biochar have led to a growing amount black carbon (BC) entering terrestrial ecosystems. The significance BC in sequestration, environmental remediation, the agricultural industry has long been recognized. However, formation, features, functions nanosized BC, which is one most active fractions continuum during global climate change, are poorly understood. This review highlights surface reactivity (sorption, redox, heteroaggregation), biotic, abiotic transformations nano-BC, its major differences compared other engineered nanomaterials. Potential nano-BC including suspending agent, soil amendment, nanofertilizer elucidated based on unique properties functions. Future studies suggested develop more reliable detection techniques provide multidimensional information samples, explore critical role promoting planetary health from perspective, extend multifield with lower footprint but higher efficiency.

Language: Английский

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Reducing coal use is key to curbing toxic trace elements emissions in China driven by carbon neutrality policy

Global Environmental Change, Journal Year: 2025, Volume and Issue: 91, P. 102965 - 102965

Published: Jan. 24, 2025

Language: Английский

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Health impact assessment on life expectancy gains ascribed to particulate matter reduction

npj Climate and Atmospheric Science, Journal Year: 2025, Volume and Issue: 8(1)

Published: Feb. 22, 2025

Language: Английский

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Provincial equity and enhanced health are key drivers for China's 2060 carbon neutrality

Journal of Cleaner Production, Journal Year: 2024, Volume and Issue: 473, P. 143531 - 143531

Published: Aug. 30, 2024

Language: Английский

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Unleashing the green potential: exploring the dynamic influence of the urban digital economy on carbon emissions

Financial Innovation, Journal Year: 2025, Volume and Issue: 11(1)

Published: Jan. 12, 2025

Abstract In the backdrop of “dual-carbon” strategic objectives, understanding influence digital economy (DE) on carbon emissions (CEs) is imperative. However, there limited research DE’s negative impact CEs and nonlinear relationship between DE CE. To address this gap, we collected data from 270 Chinese cities 2011 to 2021 used benchmark regression, mediated effects, panel threshold models explore CEs. The results showed that had a nonlinear, inverted U-shaped effect CEs, with initially increasing then being suppressed. This conclusion remained consistent even after series robustness tests. Overall, rate urbanization breadth financial coverage mediate Additionally, combined effects economic development, environmental regulation, fiscal decentralization, population size contribute varies among nonresource-based, resource-based, resource-depleted urban nonurban agglomerations. paper’s findings support development formulation CE reduction policies.

Language: Английский

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Loss of survivorship in nasopharyngeal carcinoma attributable to fine particulate matter and its constituents

Ecotoxicology and Environmental Safety, Journal Year: 2025, Volume and Issue: 293, P. 118041 - 118041

Published: March 1, 2025

Nasopharyngeal carcinoma (NPC) is a prevalent malignant tumor in East Asia, particularly impacting China. The association between multiple constituents of fine particulate matter (PM2.5) and the survival time NPC patients remains unclear, which poses challenge for targeted public health interventions. An accelerated failure-time model with 12-year cohort design was used to analyze impact long-term PM2.5 its on 1492 patients. Restricted cubic splines (RCS) functions stratification analyses were conducted identify exposure-response curve vulnerable subgroups, respectively. significantly associated reduced For per interquartile range (IQR) increase concentrations, ratio changing percentage (TRCP) ranged from -28.8 % -33.6 PM2.5, -34.7 -39.6 black carbon (BC), -13.6 -17.4 nitrate (NO3-), -21.9 -26.6 ammonium (NH4+), -29.5 -35.5 organic (OM), -31.5 -36.2 sulfate (SO42-). relationship exhibited nonlinear trend, steep slope at lower concentrations. Furthermore, females, monocyte levels, those drinking history faced higher risk time. study reveals urgent need environmental regulations mitigate constituents, BC. evidence loss survivorship crucial establishing air quality guidelines concerning PM formulating interventions protective measures high-risk

Language: Английский

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Climate change amplifies neurotoxic methylmercury threat to Asian fish consumers

Proceedings of the National Academy of Sciences, Journal Year: 2025, Volume and Issue: 122(13)

Published: March 24, 2025

Climate change is intricately influencing the accumulation of neurotoxic methylmercury (MeHg) in human food webs, potentially leading to uneven exposure risks across regions. Here, we reveal that climate will elevate MeHg China, with implications for regional inequalities Asia through a climate-mercury-food-health nexus. Using compiled fish mercury dataset from 13,000 samples and machine learning, find freshwater wild fish—an essential component Asian diet—is an underappreciated source. Specifically, concentrations are 2.9 6.2 times higher than farmed 1.7 marine fish. Individual factors influence differently, while their combined effects significantly increase Under SSP2–4.5 SSP5–8.5 by 2031 2060, national average projected about 60%, adding maximum annual economic loss US$18 million (2022 USD) intelligence quotient decrements Chinese newborns. This may vary regionally within China among countries, disproportionately affecting less developed areas. Coordinating action emission reduction strategies could mitigate these overlooked risks, reduce safety, ultimately contribute sustainable development.

Language: Английский

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Health equity and synergistic abatement strategies of carbon dioxide and air pollutant emissions reduction in China's eastern coastal area

Environmental Research Letters, Journal Year: 2024, Volume and Issue: 19(10), P. 104023 - 104023

Published: Aug. 22, 2024

Abstract Quantifying regional health disparities linked to air pollution is essential for enhancing quality and attaining carbon neutrality objectives. Nonetheless, the efficacy of proactive policies in ensuring equitable protection China’s Eastern Coastal Area (ECA) remains uncertain. Here, we employed an integrated assessment model assess combined reduction dioxide (CO 2 ) atmospheric pollutants their repercussions ECA China. Our findings reveal that 273 000 premature deaths are attributable 2060 absence mitigation policies. Conversely, poised curtail 80% CO emissions, alongside reductions 76% NO x , 79% SO PM 2.5 72% VOCs, 66% NH 3 emissions. Air control could mitigate by 19 600, while potentially lower them 50 800. The inequality coefficient among provinces stands at 0.19, primarily significantly higher mortality rates Hebei Shandong. These yield valuable insights crafting synergistic abatement strategies similarly imbalanced developmental regions grappling with comparable environmental challenges.

Language: Английский

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Identifying spatial drivers of soil heavy metal pollution risk integrating positive matrix factorization, machine learning, and multi-scale geographically weighted regression

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 485, P. 136841 - 136841

Published: Dec. 10, 2024

Language: Английский

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Modeling the water use associated with energy consumption changes on saltwater intrusion in the Pearl River estuary, China

Applied Energy, Journal Year: 2024, Volume and Issue: 372, P. 123755 - 123755

Published: June 25, 2024

Language: Английский

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