1,484 results match your criteria emissions wood

Tracking the impacts of El Niño drought and fire in human-modified Amazonian forests.

Proc Natl Acad Sci U S A 2021 Jul;118(30)

Lancaster Environment Centre, Lancaster University, Lancaster LA1 4YQ, United Kingdom.

With humanity facing an unprecedented climate crisis, the conservation of tropical forests has never been so important - their vast terrestrial carbon stocks can be turned into emissions by climatic and human disturbances. However, the duration of these effects is poorly understood, and it is unclear whether impacts are amplified in forests with a history of previous human disturbance. Here, we focus on the Amazonian epicenter of the 2015-16 El Niño, a region that encompasses 1. Read More

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Sustainable Wood Nanotechnologies for Wood Composites Processed by In-Situ Polymerization.

Front Chem 2021 1;9:682883. Epub 2021 Jul 1.

Department of Fibre and Polymer Technology, Wallenberg Wood Science Center, KTH Royal Institute of Technology, Stockholm, Sweden.

The development of large, multifunctional structures from sustainable wood nanomaterials is challenging. The need to improve mechanical performance, reduce moisture sensitivity, and add new functionalities, provides motivation for nanostructural tailoring. Although existing wood composites are commercially successful, materials development has not targeted nano-structural control of the wood cell wall, which could extend the property range. Read More

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Study of Emissions from Domestic Solid-Fuel Stove Combustion in Ireland.

Energy Fuels 2021 Mar 26;35(6):4966-4978. Epub 2021 Feb 26.

Department of Mechanical Engineering, University College Dublin, Dublin, Ireland.

Solid-fuel stoves are at the heart of many homes not only in developing nations, but also in developed regions where there is significant deployment of such heating appliances. They are often operated inefficiently and in association with high emission fuels like wood. This leads to disproportionate air pollution contributions. Read More

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A critical review of the possible adverse effects of biochar in the soil environment.

Sci Total Environ 2021 Jul 7;796:148756. Epub 2021 Jul 7.

Department of Agrochemistry, Soil Science, Microbiology and Plant Nutrition, Faculty of AgriSciences, Mendel University in Brno, Zemedelska 1, Brno, Czech Republic; Institute of Chemistry and Technology of Environmental Protection, Faculty of Chemistry, Brno University of Technology, Purkynova 118, 612 00 Brno, Czech Republic.

Biochar has received extensive attention because of its multi-functionality for agricultural and environmental applications. Despite its many benefits, there are concerns related to the long-term safety and implications of its application, mainly because the mechanisms affecting soil and organism health are poorly quantified and understood. This work reviews 259 sources and summarises existing knowledge on biochar's adverse effects on soil from a multiangle perspective, including the physicochemical changes in soil, reduced efficiency of agrochemicals, potentially toxic substances in biochar, and effects on soil biota. Read More

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Woody biomass as a potential feedstock for fermentative gaseous biofuel production.

World J Microbiol Biotechnol 2021 Jul 14;37(8):134. Epub 2021 Jul 14.

Scion, Te Papa Tipu Innovation Park, 49 Sala Street, Rotorua, 3046, New Zealand.

Biogas and biohydrogen are compatible gaseous biofuels that can be blended with natural gas for reticulated fuel supply to reduce greenhouse gas emissions. Sustainably grown woody biomass is emerging as a potential feedstock in the production of biofuels. Woody biomass is widely available, uses non-arable land for plantation, does not require synthetic fertilisers to grow and acts as a carbon sink. Read More

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Lung-deposited dose of particulate matter from residential exposure to smoke from wood burning.

Environ Sci Pollut Res Int 2021 Jul 7. Epub 2021 Jul 7.

Department of Environmental Engineering, Technical University of Crete, Polytechneioupolis, 73100, Chania, Greece.

Residential settings are of utmost importance for human exposure, as it is where people spend most of their time. Residential wood combustion is a widespread practice known as a source of indoor particulate matter (PM). Nevertheless, research on the risks of exposure associated with this source is scarce, and a better understanding of respiratory deposition of smoke particles is needed. Read More

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Residential Proximity to Biorefinery Sources of Air Pollution and Respiratory Diseases in New York State.

Environ Sci Technol 2021 Jul 7;55(14):10035-10045. Epub 2021 Jul 7.

Department of Environmental Health Sciences, School of Public Health, University at Albany, State University of New York, 1 University Place, Rensselaer, New York 12144, United States.

Understanding potential health risks associated with biofuel production is critical to sustainably combating energy insecurity and climate change. However, the specific health impacts associated with biorefinery-related emissions are not yet well characterized. We evaluated the relationship between respiratory emergency department (ED) visits (2011-2015) and residential exposure to biorefineries by comparing 15 biorefinery sites to 15 control areas across New York (NY) State. Read More

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Eco-friendly utilization of sawdust: Ionic liquid-modified biochar for enhanced Li storage of TiO.

Sci Total Environ 2021 Jun 25;794:148688. Epub 2021 Jun 25.

College of Biology and the Environment, Nanjing Forestry University, 159 Longpan Road, Nanjing 210037, PR China. Electronic address:

In China, forestry logging and wood processing produce hundreds of thousands of tons of sawdust every year, which is either discarded or burned. These nonecofriendly practices result in some challenges associated with greenhouse gas emissions. Sawdust-based biochar tailored for anodes of lithium-ion batteries (LIBs) can effectively realize value-added utilization of sawdust. Read More

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Spatiotemporal variability and origin of CO and CH tree stem fluxes in an upland forest.

Glob Chang Biol 2021 Jul 2. Epub 2021 Jul 2.

Department of Plant and Soil Sciences, University of Delaware, Newark, DE, USA.

The exchange of multiple greenhouse gases (i.e., CO and CH ) between tree stems and the atmosphere represents a knowledge gap in the global carbon cycle. Read More

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Ambient-Pressured Acid-Catalysed Ethylene Glycol Organosolv Process: Liquefaction Structure-Activity Relationships from Model Cellulose-Lignin Mixtures to Lignocellulosic Wood Biomass.

Polymers (Basel) 2021 Jun 17;13(12). Epub 2021 Jun 17.

Department of Catalysis and Chemical Reaction Engineering, National Institute of Chemistry, Hajdrihova 19, 1000 Ljubljana, Slovenia.

Raising the awareness of carbon dioxide emissions, climate global warming and fossil fuel depletion has renewed the transition towards a circular economy approach, starting by addressing active bio-economic precepts that all portion amounts of wood are valorised as products. This is accomplished by minimizing residues formed (preferably no waste materials), maximizing reaction productivity yields, and optimising catalysed chemical by-products. Within framework structure determination, the present work aims at drawing a parallel between the characterisation of cellulose-lignin mixture (derived system model) liquefaction and real conversion process in the acidified ethylene glycol at moderate process conditions, i. Read More

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Tuning the Adhesive Properties of Soy Protein Wood Adhesives with Different Coadjutant Polymers, Nanocellulose and Lignin.

Polymers (Basel) 2021 Jun 15;13(12). Epub 2021 Jun 15.

Department of Forest Biomaterials, NC State University, 2820 Faucette Dr, Raleigh, NC 27607, USA.

Commercial wood adhesives are based on products that contain formaldehyde; however, environmental and health concerns about formaldehyde emissions from wood products have influenced research and development efforts in order to find alternative, formaldehyde-free products for wood adhesives. In this work, different soy protein-based wood adhesives are proposed, and their performance is compared to commercial urea formaldehyde (UF) adhesive. Soy protein-based wood adhesives were prepared using either soy protein isolate (SPI) or soy protein flour (SF) with different coadjutant polymers: polyethylene oxide (PEO), hydroxypropyl methylcellulose (HPMC), cellulose nanofibrils (CNF) or polyvinyl alcohol (PVA) with and without addition of kraft lignin. Read More

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Characterization of Burning Behaviors and Particulate Matter Emissions of Crop Straws Based on a Cone Calorimeter.

Materials (Basel) 2021 Jun 20;14(12). Epub 2021 Jun 20.

Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing 100091, China.

Crop residue burning is one of the major sources of particulate matter (PM) in the air. The burning behaviors and PM emissions of the three typical crop residues (rice straw, wheat straw, corn straw) in China were characterized by a cone calorimeter (CONE) coupled with a laser dust meter. The water-soluble compounds, carbonaceous content, and morphology of PM were measured by ion chromatography, elemental analyzer, transmission electron microscopy (TEM) and energy-dispersive X-ray spectrometer (EDS). Read More

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Analysis of fine particulates from fuel burning in a reconstructed building at Çatalhöyük World Heritage Site, Turkey: assessing air pollution in prehistoric settled communities.

Environ Geochem Health 2021 Jun 21. Epub 2021 Jun 21.

Department of Cross-Cultural and Regional Studies, Copenhagen University, Copenhagen, Denmark.

The use of wood, dung and other biomass fuels can be traced back to early prehistory. While the study of prehistoric fuel use and its environmental impacts is well established, there has been little investigation of the health impacts this would have had, particularly in the Neolithic period, when people went from living in relatively small groups, to living in dense settlements. The UNESCO World Heritage Site of Çatalhöyük, Turkey, is one of the earliest large 'pre-urban' settlements in the world. Read More

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Brownness of Organic Aerosol over the United States: Evidence for Seasonal Biomass Burning and Photobleaching Effects.

Environ Sci Technol 2021 07 15;55(13):8561-8572. Epub 2021 Jun 15.

Division of Atmospheric Sciences, Desert Research Institute, Reno, Nevada 89512, United States.

Light-absorptivity of organic aerosol may play an important role in visibility and climate forcing, but it has not been assessed as extensively as black carbon (BC) aerosol. Based on multiwavelength thermal/optical analysis and spectral mass balance, this study quantifies BC for the U.S. Read More

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Construction of a novel microbial consortium valued for the effective degradation and detoxification of creosote-treated sawdust along with enhanced methane production.

J Hazard Mater 2021 May 27;418:126091. Epub 2021 May 27.

Biofuels Institute, School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, China. Electronic address:

Lignocellulosic biomass represents an unlimited and ubiquitous energy source, which can effectively address current global challenges, including climate change, greenhouse gas emissions, and increased energy demand. However, lignocellulose recalcitrance hinders microbial degradation, especially in case of contaminated materials such as creosote (CRO)-treated wood, which necessitates appropriate processing in order to eliminate pollution. This study might be the first to explore a novel bacterial consortium SST-4, for decomposing birchwood sawdust, capable of concurrently degrading lignocellulose and CRO compounds. Read More

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Disaggregated renewable energy sources in mitigating CO emissions: new evidence from the USA using quantile regressions.

Environ Sci Pollut Res Int 2021 Jun 5. Epub 2021 Jun 5.

Beijing Institute of Technology, Beijing, China.

A key objective of renewable energy development in the USA is to reduce CO emissions by decreasing reliance on fossil fuels in the coming decades. Using quantile-on-quantile regressions, this research examines the relationship between disaggregated sources of renewable energy (biomass, biofuel, geothermal, hydroelectric, solar, wind, wood, and waste) and CO emissions in the USA during the period from 1995 to 2017. Our findings support the deployment of various types of renewables in combating CO emissions for each quantile. Read More

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Effect of Chitosan and Naringin on Enteric Methane Emissions in Crossbred Heifers Fed Tropical Grass.

Animals (Basel) 2021 May 28;11(6). Epub 2021 May 28.

Faculty of Veterinary Medicine and Animal Science, University of Yucatan, Merida C.P. 97100, Mexico.

In order to meet consumer needs, the livestock industry is increasingly seeking natural feed additives with the ability to improve the efficiency of nutrient utilization, alternatives to antibiotics, and mitigate methane emissions in ruminants. Chitosan (CHI) is a polysaccharide with antimicrobial capability against protozoa and Gram-positive and -negative bacteria, fungi, and yeasts while naringin (NA) is a flavonoid with antimicrobial and antioxidant properties. First, an in vitro gas production experiment was performed adding 0, 1. Read More

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Household solid waste combustion with wood increases particulate trace metal and lung deposited surface area emissions.

J Environ Manage 2021 Sep 28;293:112793. Epub 2021 May 28.

Aerosol Physics Laboratory, Physics Unit, Tampere University, P.O. Box 692, 33014, Tampere, Finland.

In households, municipal solid waste (MSW) is often burned along with wood to get rid of waste, to help in ignition or simply to reduce fuel costs. The aim of this study was to characterize the influence of household waste combustion, along with wood, on the physical and chemical properties of particulate emissions in a flue gas of a masonry heater. The MSW burning alongside wood increased average particulate matter (PM) mass (65%), lung deposited surface areas (LDSA, 15%), black carbon (BC, 65%) concentrations and the average particle size in the flue gas. Read More

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September 2021

Evaluating the energy use, economic and environmental sustainability for smoked fish production from life cycle assessment point of view (case study: Guilan Province, Iran).

Environ Sci Pollut Res Int 2021 May 26. Epub 2021 May 26.

Department of Agricultural Machinery Engineering, Faculty of Agricultural Engineering and Technology, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran.

The purpose of this study is to determine energy use patterns, evaluating the environmental impacts and economic evaluation of smoked fish production in the Guilan Province. The initial data were collected from seven smokehouses in the north of Iran through face-to-face questionnaire method, while the required data related to the background system were extracted from the Ecoinvent 2.2 database. Read More

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Fingerprinting and emission rates of particulate organic compounds from typical restaurants in Portugal.

Sci Total Environ 2021 Jul 3;778:146090. Epub 2021 Mar 3.

Centre for Environmental and Marine Studies, Department of Environment and Planning, University of Aveiro, 3810-193 Aveiro, Portugal.

The aim of this study was a detailed chemical characterisation of the particles released during the preparation of popular Portuguese dishes. PM samples were collected from the exhaust stacks on the roofs of a university canteen, a charcoal-grilled chicken restaurant and a wood-oven roasted piglet restaurant. The speciation of organic compounds was carried out by gas chromatography-mass spectrometry. Read More

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Environmental impacts, water footprint and cumulative energy demand of match industry in Pakistan.

PLoS One 2021 20;16(5):e0251928. Epub 2021 May 20.

Department of Forestry and Wildlife Management, University of Haripur, Haripur, Khyber Pakhtunkhwa, Pakistan.

A comprehensive life cycle assessment (LCA) was conducted for the matchsticks industry in the Khyber Pakhtunkhwa province of Pakistan to quantify environmental footprint, water footprint, cumulative energy use, and to identify improvement opportunities in the matchsticks manufacturing process. One carton of matchsticks was used as reference unit for this study. Foreground data was collected from the matchsticks industry through questionnaire surveys, personal meetings, and field measurements. Read More

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Emission of harmful gases from animal production in Poland.

Environ Monit Assess 2021 May 17;193(6):341. Epub 2021 May 17.

Institute of Technology and Life Sciences, Branch in Warsaw, Warsaw, Poland.

The aim of the study was to present the scale of greenhouse gas emissions from animal production, and to provide test results from different housing systems. In three free stall buildings, two with slurry in deep channels and one with cattle in cubicles staying on shallow litter concentration of ammonia and carbon dioxide were measured in summer season by using dedicated equipment from Industrial Scientific Research. Air exchange was calculated on the base of balance carbon dioxide method. Read More

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Emission reduction of black carbon and polycyclic aromatic hydrocarbons during COVID-19 pandemic lockdown.

Air Qual Atmos Health 2021 May 10:1-15. Epub 2021 May 10.

Department of Chemistry, National Institute of Technology, Jamshedpur, Jharkhand 831014 India.

The global pandemic COVID-19 necessitated various responses throughout the world, including social distancing, use of mask, and complete lockdown. While these measures helped prevent the community spread of the virus, the resulting environmental benefits of lockdown remained mostly unnoticed. While many studies documented improvements in air quality index, very few have explored the reduction in black carbon (BC) aerosols and polycyclic aromatic hydrocarbons (PAHs) concentrations due to lockdown. Read More

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Heavy metal accumulation by roadside vegetation and implications for pollution control.

PLoS One 2021 13;16(5):e0249147. Epub 2021 May 13.

Department of Geology and Soil Science, Faculty of Forestry and Wood Technology, Mendel University in Brno, Brno, Czech Republic.

Vehicular emissions cause heavy metal pollution and exert negative impacts on environment and roadside vegetation. Wild plants growing along roadsides are capable of absorbing considerable amounts of heavy metals; thus, could be helpful in reducing heavy metal pollution. Therefore, current study inferred heavy metal absorbance capacity of some wild plant species growing along roadside. Read More

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Initial forest age distribution may generate computational sinks or sources of carbon: A generic approach to test assumptions underlying the EU LULUCF forest reference levels.

Carbon Balance Manag 2021 May 4;16(1):13. Epub 2021 May 4.

Natural Resources Institute Finland (Luke), Yliopistokatu 6 B, 80101, Joensuu, Finland.

Background: The current EU LULUCF regulation calls for member state-specific Forest Reference Levels (FRLs) for benchmark in the accounting of greenhouse gas emissions and removals of managed forest land during the compliance period (2021-2030). According to the technical guidance on developing and reporting the FRLs, it could be actualized by projecting a ratio of harvested to total available biomass. We tested how the initial age distribution may affect the aforementioned ratio by simulating the continuation of forest management based on several descriptive shapes of forest age class distribution. Read More

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The effects of paints and moisture content on the indoor air emissions from pinewood (Pinus sylvestris) boards.

Indoor Air 2021 May 3. Epub 2021 May 3.

Department of Civil Engineering, Aalto University, Espoo, Finland.

The emissions of volatile organic compounds (VOCs) from building materials may significantly contribute to indoor air pollution, and VOCs have been associated with odor annoyance and adverse health effects. Wood materials together with coatings are commonly used indoors for furniture and large surfaces such as walls, floors, and ceilings. This leads to high surface-to-volume ratios, and therefore, these materials may participate remarkably to the VOC levels of indoor environment. Read More

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Chemical Composition and Source Apportionment of Wintertime Airborne PM in Changchun, Northeastern China.

Int J Environ Res Public Health 2021 04 20;18(8). Epub 2021 Apr 20.

Department of Library, Jilin University of Finance and Economics, Changchun 130117, China.

This study presents field observations and laboratory analyses of wintertime airborne particulate matter (PM) and its chemical components in the Changchun metropolitan area, the geographical center of northeastern China. Twenty-four hour PM filter samples were collected from 23 December 2011 to 31 January 2012 at four sites in the types of traffic, residential, campus, and a near-city rural village, respectively. Daily PM concentrations ranged from 49 to 466 µg m, with an arithmetic average of 143 µg m. Read More

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Slow pyrolysis liquid in reducing NH emissions from cattle slurry - Impacts on plant growth and soil organisms.

Sci Total Environ 2021 Aug 16;784:147139. Epub 2021 Apr 16.

Natural Resources Institute Finland, 31600 Jokioinen, Finland.

A substantial percentage of manure nitrogen (N) can be lost as gaseous ammonia (NH) during storage and field spreading. Lowering slurry pH is a simple and accepted method for preserving its N. Efficiency of slow pyrolysis liquid (PL) produced from birch (Betula sp. Read More

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[Chemical Characteristics and Source Apportionment of Organic Aerosols in Atmospheric PM in Winter in Beijing].

Huan Jing Ke Xue 2021 May;42(5):2101-2109

State Key Joint Laboratory of Environmental Simulation and Pollution Control, International Joint Laboratory for Regional Pollution Control, Ministry of Education, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China.

To explore the concentrations, characteristics, and sources of organic aerosols in winter in Beijing, atmospheric fine particulate matter (PM) samples were collected from November 10, 2016 to December 10, 2016. One hundred and twenty-nine particulate organic matters (POM) were quantified by gas chromatography-mass spectrometry, accounting for approximately 9.3%±1. Read More

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Evolution of Aerosol Optical Properties from Wood Smoke in Real Atmosphere Influenced by Burning Phase and Solar Radiation.

Environ Sci Technol 2021 05 20;55(9):5677-5688. Epub 2021 Apr 20.

Beijing Weather Modification Office, Beijing 100081, China.

Emissions of light-absorbing black carbon (BC) and organic aerosol (OA) from biomass burning are presented as complex mixtures, which introduce challenges in modeling their absorbing properties. In this study, we chose typical residential wood burning emission and used a novel designed chamber to investigate the early stage evolution of plumes from different burning phases under real ambient conditions. The detailed mixing state between BC and OA was evaluated, on the basis of which optical modeling was performed to achieve a closure of aerosol-absorbing properties. Read More

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