Results 101 to 110 of about 1,090,059 (311)

Environmental Quality Evaluation of Hard Coal Using LCA and Exergo-Ecological Cost Methodology

open access: yesChemical Engineering Transactions, 2014
The world’s global economy is based on the access to energy. The majority of useful energy is still produced by combustion of fossil fuels that belongs to non-renewable natural resources. Besides the depletion of non-renewable resources there is also a problem related to release of waste substances into the natural environment.
Czarnowska L.   +3 more
openaire   +2 more sources

Non Catastrophic Endogenous Growth with Pollution and Abatment [PDF]

open access: yes
When there are pollution externalities the competitive equilibrium is not Pareto-optimal nor environmentally sustainable even if abatment activities are endogenously decided.
J., AZNAR-MARQUEZ   +1 more
core  

Support for Integrated Ecosystem Assessments of NOAA’s National Estuarine Research Reserves System (NERRS), Volume I: The Impacts of Coastal Development on the Ecology and Human Well-being of Tidal Creek Ecosystems of the US Southeast [PDF]

open access: yes, 2008
A study was conducted, in association with the Sapelo Island and North Carolina National Estuarine Research Reserves (NERRs), to evaluate the impacts of coastal development on sentinel habitats (e.g., tidal creek ecosystems), including potential impacts ...
Bergquist, D.   +13 more
core  

Inert Catalytic Sites Unlocked by Micropollutants for Rapid Water Decontamination with Near‐Complete Chemical Utilization

open access: yesAdvanced Materials, EarlyView.
Micropollutants can act as molecular triggers that activate a newly designed and chemically inert Fenton‐like PKU‐24 catalyst for on‐demand singlet oxygen generation from peroxymonosulfate (PMS), enabling nearly complete peroxide utilization and selective micropollutant removal from complex real‐world wastewater.
Yu‐Hang Li   +7 more
wiley   +1 more source

Complexities of peroxyacetyl nitrate photochemistry and its control strategies in contrasting environments in the Pearl River Delta region

open access: yesnpj Climate and Atmospheric Science
Peroxyacetyl nitrate (PAN) is a hazardous secondary pollutant and a nitrogen reservoir in the troposphere, while comprehensive studies on its spatiotemporal distribution, chemical sources, and control strategies are limited.
Tao Liu   +14 more
doaj   +1 more source

ENVIRONMENTAL QUALITY OF SOFT-BOTTOM IN HAIFA BAY (ISRAEL): AMPHIPOD ASSEMBLAGES [PDF]

open access: yes, 2016
Ecological information concerning amphipods and representation of their spatial distribution through GIS provides an estimate of local environmental ...
B. S., G.   +5 more
core  

Rational Tuning of Hygroscopic Oscillation of Stacked Nanoflake Assemblies for Continuous Ambient Energy Harvesting

open access: yesAdvanced Materials, EarlyView.
Stacked nanoflake assembly (SNA) membranes can oscillate autonomously, offering opportunities for soft actuation and energy harvesting. This work uncovers the physical mechanism behind the sustained oscillation of SNA membranes in gradient humidity and identifies three governing dimensionless parameters, enabling rational design for optimizing SNA ...
Zijing Zhang   +5 more
wiley   +1 more source

Why observed and modelled ozone production rates and sensitives differ, a case study at rural site in China [PDF]

open access: yesAtmospheric Chemistry and Physics
Ground-level ozone (O3) pollution has recently become of increasing concern in China. Studies have shown that conventional models often fail to predict accurately the net O3 production rate (P(O3)net) due to the absence of certain mechanisms ...
J. Zhou   +15 more
doaj   +1 more source

A Reusable Polymeric Sensor Based on Green‐Synthesized CQDs@ZIF‐8 for the Rapid Detection of Nitro‐Explosive Picric Acid

open access: yesAdvanced Materials Interfaces, EarlyView.
This study presents the rational design and synthesis of a highly luminescent polymeric nanocomposite. Initially, highly fluorescent carbon quantum dots (CQDs) are synthesized via a facile hydrothermal method using citric acid and β‐alanine as precursors, followed by rigorous purification through centrifugation and filtration.
Yunus Emre Toprak   +2 more
wiley   +1 more source

Snapshot Survey of the Presence of Perfluoroalkyl Substances in Products, Articles, and the Environment in Ecuador

open access: yesEngineering
The Stockholm Convention on Persistent Organic Pollutants (POPs) is a legally binding instrument for 186 Parties (status: April 2023). Accordingly, among other responsibilities, countries are obliged to report the production, import, or export of the ...
Heidelore Fiedler   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy