Results 111 to 120 of about 151,458 (305)

Precautionary defaults - A new strategy for chemical risk management

open access: yes, 2004
In order to give adequate support to risk managers, new risk assessment methods should be developed that are (1) scientifically sound, (2) simplified, and (3) suited for precautionary risk management.
Ruden, C   +40 more
core   +1 more source

Eco‐Geography Reverses Dominant AMR Reservoirs in Klebsiella pneumoniae: Integron‐Rich Mobilomes and Cross‐Niche Connectivity

open access: yesAdvanced Science, EarlyView.
Dominant antimicrobial resistance reservoirs in Klebsiella pneumoniae vary across eco‐geographic settings rather than following a universal pattern. Integrated One Health and global genomic analyses show that lineage structure, integron load, and cross‐niche connectivity shape whether AMR burden accumulates primarily in human or nonhuman compartments ...
Hui Lin   +12 more
wiley   +1 more source

Temporal Evolution, Source Apportionment, and Health Risks of Atmospheric Halocarbons: A Case Study in the Central Yangtze River Delta Region

open access: yesToxics
Recently, the environmental impact of halocarbons has become increasingly concerning, particularly due to the growing influence of non-regulated halocarbons on stratospheric ozone depletion and their adverse health effects in the troposphere.
Yuchun Jiang   +10 more
doaj   +1 more source

Cobalt Single‐Atom Catalysts for Ultrafast Sulfamethoxazole Degradation: Unveiling the Chloride‐Ion‐Enhanced Formation of Co(IV)=O

open access: yesAdvanced Science, EarlyView.
An atomically dispersed Co–N4 single‐atom catalyst rapidly activates peroxymonosulfate to remove the antibiotic sulfamethoxazole from water. Common ions have little impact, but chloride dramatically speeds degradation by promoting a high‐valent Co(IV) = O oxidant via in situ HOCl–catalyst electron transfer.
Anting Ding   +6 more
wiley   +1 more source

A novel energy-water-carbon coupling system optimization management model based on water environmental carrying capacity under the influence of climate change

open access: yesEnergy Strategy Reviews
Under climate change, the ability of water bodies to maintain ecology and human activities becomes more fragile, leading to water shortages. The change in the carrying capacity of the water environment further intensifies the management difficulties of ...
Zhenghui Fu   +7 more
doaj   +1 more source

Hydrothermal Humification of Biomass for Circular Carbon Management in Sustainable Agro‐Ecosystems

open access: yesAdvanced Science, EarlyView.
This article provides a comprehensive overview of biomass hydrothermal humification for building sustainable agro‐ecosystems. It examines the chemical transformation mechanisms and the functional benefits of the produced humic acids in soil remediation.
Ziyun Liu   +4 more
wiley   +1 more source

Risk communication discourse among ecological risk assessment professionals and its implications for communication with nonexperts

open access: yes, 2013
Risk communication, especially to the general public and end users of plant protection products, is an important challenge. Currently, much of the risk communication the general public receives is via the popular press, and risk managers face the ...
Forbes, Valery E,   +7 more
core   +1 more source

W‐N‐C Tandem Catalytic Centers Mediating Efficient Charge Transfer for the Enhanced Radical‐Path U(VI) Photoreduction

open access: yesAdvanced Science, EarlyView.
This work constructed a tandem W−N−C center to simultaneously achieve the regulation of reaction pathways and optimization of charge separation efficiency. The Lewis‐acidic W6+ sites activated O2 to generate O2−$O_2^ - $, with enhanced charge separation via electronic modulation, steering U(VI) reduction down an efficient radical pathway.
Zhiyao Wu   +11 more
wiley   +1 more source

Synergistic Effects of Viruses and Environmental Gradients on Carbon Cycling in a River Ecosystem

open access: yesBiology
Riverine ecosystems represent critical nodes in the global carbon cycle, where the mechanistic role of viruses in modulating eukaryotic carbon cycling remains underexplored, particularly across heterogeneous landscapes.
Rongxu Luo   +6 more
doaj   +1 more source

A preliminary study in ecological risk assessment and case analysis

open access: yes, 2007
八○年代初期,提出以人為接收者(receptor)的人類健康風險評估,將化學、毒理、模式等領域整合在探討的架構中,環境改變透過食物網及生態弁鄋熄У慼A擴散影響到其他區域乃至人類本身,此為生態風險評估精神的濫觴。 美國先後於1992年及1998年提出以生態系統中生物體為接收者(receptors)的生態風險評估綱要及指引(EPA, 1992;EPA, 1998),提供兩個重要論點:其一,透過有系統的架構執行評估計畫,意欲標準化評估流程以作為決策管理依據;另外,流程區塊中保留研究空間 ...
蔡文華, Tsai, Wen-Hua
core  

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