• Common Nr species include nitrogen oxides (NO x), ammonia (NH 3), nitrous oxide (N 2O), as well as the anion nitrate (NO− 3). (wikipedia.org)
  • Nitrate is a common component of fertilizers, e.g. ammonium nitrate. (wikipedia.org)
  • Soil cyanate concentrations were three orders of magnitude lower than ammonium or nitrate. (aau.dk)
  • Lebanon's prime minister said an investigation would focus on an estimated 2,750 metric tons of the explosive ammonium nitrate stored at a warehouse. (cnn.com)
  • Robert Baer, a former CIA operative with extensive experience in the Middle East, said videos of Tuesday's blast showed that while ammonium nitrate may have been present in the warehouse, he does not believe it was responsible for the massive explosion that ensued. (cnn.com)
  • Lebanon's Prime Minister, Hassan Diab, later said that 2,750 metric tons of ammonium nitrate, a highly explosive material used in fertilizers and bombs, had been stored for six years at a port warehouse without safety measures, "endangering the safety of citizens," according to a statement. (cnn.com)
  • It was not fertilizer like ammonium nitrate. (cnn.com)
  • Baer noted that white powder seen in the videos of the incident before the major blast are likely an indicator that ammonium nitrate was present and burning. (cnn.com)
  • Baer said while he believes the explosion does not look like solely ammonium nitrate, there's still no evidence that this was an attack. (cnn.com)
  • What is ammonium nitrate? (cnn.com)
  • Authorities are still investigating what exactly caused Tuesday's deadly explosion in Beirut, but public statements from key Lebanese officials have begun to focus on ammonium nitrate that was kept in a warehouse near the port. (cnn.com)
  • Ammonium nitrate, a compound of ammonia and nitrogen, is best known for being used in fertilizers and -- because it's incredibly volatile -- bombs. (cnn.com)
  • The bombing of the Alfred P. Murrah Federal Building in Oklahoma City in 1995, which killed 169 people and injured 467, was carried out using two US tons of ammonium nitrate. (cnn.com)
  • One of the worst accidents in US history involving a form of ammonia occurred in April 1947, when a ship loaded with ammonium nitrate caught fire while docked in Texas City. (cnn.com)
  • Its principal products include anhydrous ammonia, granular urea, urea ammonium nitrate, and ammonium nitrate products. (yahoo.com)
  • Nitrogen is present in water as nitrite and nitrate anions, as ammonium cations (all inorganic nitrogen), and as part of organic solutes. (usgs.gov)
  • Nonresonant X-ray emission spectroscopy was used to compare the nitrogen-rich compounds ammonium nitrate, trinitrotoluene, and cyclotrimethylene−trinitramine. (figshare.com)
  • Bacteria break down food scraps, fish scraps, and other nitrogen-containing organic compounds into ammonium and, at a later stage, into toxic nitrate. (mascotaplanet.com)
  • Pollution of water resources, such as nitrogen compounds, nitrate, and ammonium is increasingly expanding. (eurekaselect.com)
  • A wide range of physico-chemical and biological methods are conducted for decreasing nitrate compounds and the amount of wastewaters. (eurekaselect.com)
  • A major component of the Salt Lake Valley and Denver PM2.5 pollution is ammonium nitrate aerosol, which forms from emissions of nitrogen oxides, volatile organic compounds (VOCs), and ammonia. (agu.org)
  • Based on the observations from the field campaign, Womack and her colleagues found that ozone and ammonium nitrate aerosol pollution are closely related, connected by the unusually named parameter "total odd oxygen. (agu.org)
  • Since the same chemical processes that form ozone pollution in the summer produce ammonium nitrate pollution in winter, strategies that have effectively controlled ozone could also limit production of ammonium nitrate. (agu.org)
  • In western valleys with high levels of ammonium nitrate aerosol, mitigation efforts have tended to focus first on controlling one component of the pollution: nitrogen oxides from burning fossil fuels. (agu.org)
  • The researchers found this approach may actually increase ammonium nitrate pollution, at least initially. (agu.org)
  • The highly intelligent HYDRA Nitrate Analyzer System measures the concentration of dissolved nitrate as nitrogen (NO 3 -N) in water. (ecdi.com)
  • Nitrification oxidizes the toxic ammonium ion into a much less toxic nitrate ion using an aerobic activated sludge process. (ecdi.com)
  • De-nitrification reduces the nitrate ion (NO 3 ) to nitrogen gas (N 2 ) through an anoxic reaction in the same treatment basin or in a separate anaerobic digester. (ecdi.com)
  • The ammonium in the digestate can be oxidized into nitrate (NO3-) through a process known as nitrification. (slu.se)
  • How much of the nitrogen demand that can be applied depends on the nutrient concentration of the digestate, how much ammonium that has been oxidized into nitrate and the nutrient solution recipe. (slu.se)
  • In 2021, emissions of oxidised nitrogen (NO 2 , nitric acid and nitrate-containing particles) was highest in Belgium, northern Germany, northern Italy, the Netherlands and Poland (see 2023 EMEP Report ). (europa.eu)
  • Ammonia can also be combined with other substances to form ammonium compounds, including salts such as ammonium chloride, ammonium sulfate, ammonium nitrate, and others. (cdc.gov)
  • The ammonia is then further processed to create different forms of nitrogen fertilizers like urea, ammonium nitrate, and ammonium phosphate. (virtualtourist.com)
  • In response to a request from the International Chemical Workers Union on behalf of employees at Agrium, Inc. (SIC-2873), Beatrice, Nebraska, an investigation was begun into possible hazardous working conditions at Homestead Nitrogen Operations (formerly Cominco Fertilizers, Inc.). The facility produced agricultur al grade ammonium-nitrate. (cdc.gov)
  • These chemicals combine to form ammonium nitrate, which can be seen from the brown color in urban haze. (princeton.edu)
  • The four nitrogen compounds in the proposed pathway were measured in the substrate addition assays-nitrate, nitrite, hydroxylamine, and ammonium. (udel.edu)
  • Hydroxylamine was present in small concentrations during nitrate reduction to ammonium. (udel.edu)
  • The results presented here are consistent with hydroxylamine as a free intermediate in nitrate reduction to ammonium in N. profundicola. (udel.edu)
  • A 2â ¯mL sample aliquot was digested with an alkaline solution of persulfate to convert nitrogen containing compounds to nitrate. (bvsalud.org)
  • amine derivatives: ammonia and ammonium salts, urea. (wikipedia.org)
  • It is a key intermediate in the nitrogen cycle in nature, and microbial production is a major source of ammonia in the world. (cdc.gov)
  • No, but there is a range of ammonia-derived nitrogen compounds that could be used. (halfbakery.com)
  • The method converts proteins, amines, organic compounds and other nitrogen compounds into ammonia compounds. (fishersci.com)
  • Cyanate can serve as a nitrogen and/or carbon source for different microorganisms and as an energy source for autotrophic ammonia oxidizers. (aau.dk)
  • Ammonium compounds are sources of ammonia, which is used in the body to synthesize nitrogen-containing compounds and to adjust the acidity of bodily fluids, with an excess converted to urea and excreted in the urine. (cspinet.org)
  • Nitrogen primarily enters a municipal wastewater system as ammonia/ammonium compounds. (ecdi.com)
  • However, the irritating sodium atom is not present and instead an ammonium (not ammonia) molecule (not an atom) made up of one nitrogen and four hydrogen atoms (NH). (beautylaunchpad.com)
  • Nitrogen deposition is mainly caused by ammonia (NH 3 ) from agricultural activities and nitrogen oxides (NO x ) from combustion processes. (europa.eu)
  • In water, most of the ammonia changes to the ionic form of ammonia, known as ammonium ions, which are represented by the formula NH4+ (an ion is an atom or a group of atoms that has acquired a net electric charge by gaining or losing one or more electrons). (cdc.gov)
  • Ammonia and ammonium ions can change back and forth in water. (cdc.gov)
  • Many cleaning products also contain ammonia in the form of ammonium ions. (cdc.gov)
  • These fertilizers are manufactured using a process called the Haber-Bosch process, which involves the conversion of atmospheric nitrogen into ammonia. (virtualtourist.com)
  • The bacteria reside in nodules on the plant's roots and convert nitrogen gas into ammonia, which can be utilized by the plant. (virtualtourist.com)
  • A6: Nitrogen fixation occurs when nitrogen-fixing bacteria convert atmospheric nitrogen into ammonia, which is then used by plants. (virtualtourist.com)
  • There was still concern about the potential for exposure to nitrogen oxides, nitrosamines, ammonia (7664417), inorganic acids and volatile organic compounds. (cdc.gov)
  • The researchers noted that vehicle emissions of ammonia were co-emitted with nitrogen oxides. (princeton.edu)
  • With other vehicle emissions - mainly nitrogen and sulfur compounds - in such close proximity to the ammonia, the conditions are ripe for the production of fine particulate matter. (princeton.edu)
  • the world, abundant supplies of calcium sulfate in any of several mineral forms can be used to make the ammonium sulfate by combining it with ammonia and water. (britannica.com)
  • Sources of ammonia include bacterial hydrolysis of urea and other nitrogenous compounds in the intestine, the purine-nucleotide cycle and amino acid transamination in skeletal muscle, and other metabolic processes in the kidneys and liver. (medscape.com)
  • Ammonia is a product of the metabolism of proteins and other compounds, and it is required for the synthesis of essential cellular compounds. (medscape.com)
  • Specifically, targeting nitrogen oxides emitted by cars and power plants could initially actually increase harmful air pollution, the researchers reported in their new paper , out today in the AGU journal Geophysical Research Letters . (agu.org)
  • This study focused on areas of the site such as the acid facility and boiler house, where workers could be potentially exposed to the boiler additives and nitrogen oxides. (cdc.gov)
  • In recent years the tandem cycloaddition has been employed as a discovery engine for the investigation of structure/selectivity-reactivity relationships in asymmetric phase transfer catalysis with chiral quaternary ammonium ions. (illinois.edu)
  • Containing reduced nitrogen, these compounds are components of fertilizers. (wikipedia.org)
  • Nitrogen and phosphorus compounds occur naturally in coastal streams and rivers but also are commonly applied to land as commercial fertilizers and livestock waste. (usgs.gov)
  • In hydroponic production of tomatoes easily soluble mineral fertilizers are used as a source of nitrogen. (slu.se)
  • The rest is used to make other fertilizers that contain ammonium compounds, usually ammonium salts. (cdc.gov)
  • These fertilizers are used to provide nitrogen to plants. (cdc.gov)
  • Among the essential nutrients required by plants, nitrogen is a key component in various fertilizers. (virtualtourist.com)
  • However, have you ever wondered where the nitrogen for these fertilizers comes from? (virtualtourist.com)
  • In this article, we will explore the sources of nitrogen used in fertilizers and shed light on some common questions regarding this crucial nutrient. (virtualtourist.com)
  • 1. Synthetic Nitrogen Fertilizers: The majority of nitrogen fertilizers are derived from synthetic sources. (virtualtourist.com)
  • 2. Animal Manure: Animal waste, such as manure, is an organic source of nitrogen used in fertilizers. (virtualtourist.com)
  • A3: While synthetic nitrogen fertilizers can enhance plant growth, excessive use can lead to environmental issues like water pollution and greenhouse gas emissions. (virtualtourist.com)
  • Q4: Can organic sources of nitrogen be as effective as synthetic fertilizers? (virtualtourist.com)
  • A4: Yes, organic sources like animal manure and nitrogen-fixing cover crops can provide a sustainable and eco-friendly alternative to synthetic fertilizers. (virtualtourist.com)
  • A7: Nitrogen enters the soil through various processes, including nitrogen fixation, decomposition of organic matter, and application of nitrogen-based fertilizers. (virtualtourist.com)
  • Q10: Are there any alternatives to nitrogen-based fertilizers? (virtualtourist.com)
  • Q11: Can nitrogen-based fertilizers be harmful to human health? (virtualtourist.com)
  • A11: When used according to recommended guidelines, nitrogen-based fertilizers pose minimal risks to human health. (virtualtourist.com)
  • These compounds have a charged nitrogen center, and necessarily come with a negative counterion, so they are called quaternary ammonium salts. (newworldencyclopedia.org)
  • According to Wikipedia, "In chemistry, salts are ionic compounds that result from the neutralization reaction of an acid and a base. (beautylaunchpad.com)
  • They found an astonishingly good match with ammonium salts, which contain nitrogen and hydrogen. (newscientist.com)
  • Finding ammonium salts in particular is interesting as they are important to the chemical reactions that form the amino acids that living organisms are made from, as well as the nucleobases that make up DNA, says Poch. (newscientist.com)
  • There is a tantalising scenario in which you can imagine that if comets such as 67P fall on the early Earth and the ammonium salts dissolve in water, you may have all these prebiotic reactions happen," he says. (newscientist.com)
  • Organic phosphorus compounds which are available as halogenated or non-halogenated substances can serve asalternatives for use in ABS plastics. (pops.int)
  • Ammonium ions are not gaseous and have no odor. (cdc.gov)
  • et al "Concentrations of choline-containing compounds and betaine in common foods" J Nutr. (wellnessadvocate.com)
  • Quality of natural waters analysis included investigation of the annual concentrations of priority substances in the water of some rivers in Polesie for dissolved oxygen, phosphates, nitrogen, petroleum products, copper, zinc, etc. (mdpi.com)
  • This is a life-saving property as these organisms are often confronted with high, toxic concentrations of this nitrogen compound in their living environment, such as in volcanos, landfill sites or rice fields. (phys.org)
  • This enables them to deal with high ammonium concentrations. (phys.org)
  • Dynamic modeling predicted that ˙OH production occurs in a burst, regulated mainly by ammonium and ferric iron concentrations. (lu.se)
  • OH production occurs in a burst regulated mainly by ammonium and ferric iron concentrations. (lu.se)
  • The subject of the present patent is a process for the preparation of a water-soluble, higher molecular weight, α-substituted benzylamine derivative, characterized in that that a-methyl-4-dodecylbenzylamine is methylated with dimethyl sulfate and the a-methyl-4-dodecyl-benzyldimethylamine that is obtained is converted into the quaternary ammonium compound with diethyl sulfate. (google.com)
  • The objectives were to identify the source of the foraminiferal kleptoplasts, assess their photosynthetic functionality in light and darkness and investigate inorganic nitrogen and sulfate assimilation. (lu.se)
  • We used DNA barcoding of a ~ 830 bp fragment from the SSU rDNA to identify the kleptoplasts and correlated transmission electron microscopy and nanometre-scale secondary ion mass spectrometry (TEM-NanoSIMS) isotopic imaging to study 13C-bicarbonate, 15N-ammonium and 34S-sulfate uptake. (lu.se)
  • Furthermore, N. labradorica assimilated both 15N-ammonium and 34S-sulfate into its cytoplasm, which suggests that foraminifera might have several ammonium or sulfate assimilation pathways, involving either the kleptoplasts or bona fide foraminiferal pathway(s) not yet identified. (lu.se)
  • In this process, nitrogen (obtained from the atmosphere) and hydrogen (obtained from natural gas) are mixed together in a 1 to 3 ratio and passed over a catalyst at high pressure and high temperature. (cdc.gov)
  • CF Industries Holdings, Inc. manufactures and sells hydrogen and nitrogen products for energy, fertilizer, emissions abatement, and other industrial activities worldwide. (yahoo.com)
  • It is made up of one part nitrogen (N) and three parts hydrogen (H3). (cdc.gov)
  • Hydrogen fluoride is a chemical compound that contains fluorine. (cdc.gov)
  • Hydrogen fluoride can be released when other fluoride-containing compounds such as ammonium fluoride are combined with water. (cdc.gov)
  • With the mHAO enzyme described in the PNAS article, these bacteria can degrade this compound to nitric oxide (NO), which can be further converted to nitrite (NO 2 - ) or nitrous oxide (N 2 O)that is non-toxic for the bacterium. (phys.org)
  • The proposed rHURM pathway includes rHaoA and hcp/har which catalyze the reduction of nitrite to hydroxylamine, as an intermediate, and hydroxylamine to ammonium, respectively. (udel.edu)
  • usually limited by several nutrients such as nitrogen, phosphorus, and iron. (biorxiv.org)
  • Phosphorus and nitrogen compounds are the main nutrients in waste waters that cause algae formation, oxygen depletion and eutrophication in water systems. (oulu.fi)
  • Manure is often used as a natural fertilizer, as it provides not only nitrogen but also other essential nutrients for plant growth. (virtualtourist.com)
  • A9: Yes, excessive nitrogen can lead to an imbalance in soil nutrients, causing nutrient deficiencies or toxicity in plants. (virtualtourist.com)
  • Boreal trees rely on their ectomycorrhizal fungal symbionts to acquire growth-limiting nutrients, such as nitrogen (N), which mainly occurs as proteins complexed in soil organic matter (SOM). (lu.se)
  • Especially plant growth-limiting nutrients such as nitrogen (N) and phosphorus (P) are known to be taken up efficiently by ECM fungi. (lu.se)
  • These space rocks appear to have 10 times less nitrogen than they ought to based on our understanding of how they form, but a new finding from comet 67P/Churyumov-Gerasimenko might reveal how comets have been hiding their nitrogen. (newscientist.com)
  • However, biological methods are highly efficient in the removal of nitrogen compounds, and due to their advantages, they are widely used in wastewater purification. (eurekaselect.com)
  • Treatment involves compounds that increase the removal of nitrogen waste. (medscape.com)
  • Nitrogen from organic compounds is already mineralized into ammonium (NH4+), an inorganic compound which can be utilized by the tomato plants. (slu.se)
  • Here, we investigate possible inorganic-compound assimilation in Nonionellina labradorica, a common kleptoplastidic benthic foraminifer from Arctic and North Atlantic sublittoral regions. (lu.se)
  • Halogenated organophosphorus compounds include tris-chloropropyl-phosphate (TCPP), tris-chloroethyl-phosphate, and tris dichloropropyl phosphate (TDCPP) (BMU, 2000). (pops.int)
  • By using random sampling in the ensuing flux space, we found that storage of glycogen or exudation of organic acids are favored when the growth is nitrogen limited, while exudation of amino acids becomes more likely when phosphate is the limiting resource. (biorxiv.org)
  • The use of industrial waste materials as precipitation chemicals in the simultaneous removal of ammonium and phosphate from nutrient-containing wastewaters was studied in this dissertation. (oulu.fi)
  • Ammonium and phosphate removal experiments were started using synthetic wastewater in order to generate experimental comparative data. (oulu.fi)
  • Oxidation works in concert with proteolysis, improving nitrogen liberation from proteins in SOM. (lu.se)
  • 3. Nitrogen-Fixing Bacteria: Certain bacteria, known as nitrogen-fixing bacteria, have the ability to convert atmospheric nitrogen into a usable form for plants. (virtualtourist.com)
  • Anaerobic ammonium-oxidizing ( anammox ) bacteria are known for their ability to convert ammonium into nitrogen gas without using oxygen. (science20.com)
  • The assimilation of inorganic compounds in foraminiferal metabolism compared to predation or organic matter assimilation is unknown. (lu.se)
  • We provide evidence that cyanate is actively turned over in soils and represents a small but continuous nitrogen/energy source for soil microbes. (aau.dk)
  • It now appears that these bacteria are also involved in this, in addition to the bacteria that normally oxidize ammonium in the soil. (phys.org)
  • It is found in water, soil, and air, and is a source of much needed nitrogen for plants and animals. (cdc.gov)
  • 4. Crop Rotation and Cover Crops: Rotating crops and planting cover crops can help improve soil fertility by increasing the nitrogen content. (virtualtourist.com)
  • Leguminous cover crops, such as alfalfa or red clover, have the ability to fix atmospheric nitrogen, enriching the soil for future crops. (virtualtourist.com)
  • Q7: How does nitrogen get into the soil? (virtualtourist.com)
  • Q8: Can nitrogen be lost from the soil? (virtualtourist.com)
  • A8: Yes, nitrogen can be lost from the soil through leaching, denitrification, and volatilization, which can decrease its availability for plants. (virtualtourist.com)
  • However, just over half of all reactive nitrogen entering the biosphere is attributable to anthropogenic activity such as industrial fertilizer production. (wikipedia.org)
  • and compound fertilizer products with nitrogen, phosphorus, and potassium. (yahoo.com)
  • Q3: Is synthetic nitrogen fertilizer harmful to the environment? (virtualtourist.com)
  • Methane-eating bacteria can degrade ammonium in addition to methane, as discovered by microbiologists at Radboud University and the Max Planck Institute in Bremen. (phys.org)
  • Methane-eating bacteria aren't normally linked with nitrogen emission. (phys.org)
  • Anyway, these bacteria are being developed at Radboud as a cost-effective and environmentally friendly way of reducing molecular nitrogen content in wastewater - think of all those EU regulations concerning water quality! (science20.com)
  • In organic chemistry , Betaine (N,N,N-trimethylglycine), as an organic compound , is an inner salt trimethyl ammonium compound . (wellnessadvocate.com)
  • Edris Hoseinzadeh , " Nitrogen Removal Processes for Wastewater Treatment ", Bentham Science Publishers (2019). (eurekaselect.com)
  • Nitrogen-containing organic compounds (NOCs) substantially contribute to light-absorbing organic aerosols, although the atmospheric processes responsible for the secondary formation of these compounds are poorly understood. (copernicus.org)
  • Exceedances are attributed to both reduced nitrogen compounds from agricultural activities and oxidised nitrogen from combustion processes. (europa.eu)
  • A1: Nitrogen is a vital nutrient required for various plant processes, including photosynthesis, protein synthesis, and overall growth and development. (virtualtourist.com)
  • The chemical compound hydrazine, also used as rocket fuel and the strongest reductant on earth, is central in this process. (science20.com)
  • OH production, ammonium assimilation, and proteolytic activity were measured daily. (lu.se)
  • In recent years this interest has focused on palladium catalyzed cross-coupling reactions with organofunctional silicon compounds, asymmetric catalysis of carbonyl and olefin addition reactions and chiral Lewis base activation of Lewis acids. (illinois.edu)
  • Paxillus involutus was grown for 7 d on N-containing or N-free substrates that represent major organic compounds of SOM. (lu.se)
  • OH production was strongly induced when P. involutus switched from ammonium to protein as the main N source. (lu.se)
  • OH), produced by the ectomycorrhizal fungus Paxillus involutus during growth on SOM, are involved in liberating organic nitrogen. (lu.se)
  • The NO 3 -N measurement helps optimize the methanol being fed to the digester, which minimizes cost and provides trend measurement of the total nitrogen (TN) in the effluent. (ecdi.com)
  • This essay has the purpose to investigate how much of the total nitrogen demand of a hydroponic tomato culture that can be applied with digestate which has gone through nitrification. (slu.se)
  • A third of the total nitrogen demand can be applied with digestate. (slu.se)
  • Recent reports, however, have emphasized the significant influence that humans are having on the global nitrogen budget. (cdc.gov)
  • While reactive nitrogen is eventually converted back into molecular nitrogen via denitrification, an excess of reactive nitrogen can lead to problems such as eutrophication in marine ecosystems. (wikipedia.org)
  • In the environmental context, reactive nitrogen compounds include the following classes: oxide gases: nitric oxide, nitrogen dioxide, nitrous oxide. (wikipedia.org)
  • Full shift samples for nitrogen-dioxide (10102440) (NO2) and nitric-oxide (10102439) were collected. (cdc.gov)
  • One of the targets of the European Commission's zero pollution action plan is to reduce the area of ecosystems in the EU at risk of eutrophication caused by atmospheric nitrogen deposition by 25% by 2030, compared with 2005. (europa.eu)
  • The implementation of measures intended to achieve the 50% reduction in nutrient losses set out in the f arm to fork strategy and the nature restoration targets of the b iodiversity strategy can also contribute to reducing atmospheric nitrogen deposition. (europa.eu)
  • This indicator investigates the exceedance of the critical loads for atmospheric nitrogen deposition in the EEA member and cooperating countries. (europa.eu)
  • However, atmospheric nitrogen cannot be directly utilized by plants. (virtualtourist.com)
  • The ammonium bonding is safe with few unstable electrons to cause damage to tissues. (beautylaunchpad.com)
  • Similarly, an organic compound with multiple amino groups is called a diamine , triamine , tetraamine and so forth. (newworldencyclopedia.org)
  • an abbreviation for AN aerobic AMM onium OX idation, is a globally important microbial process of the nitrogen cycle. (science20.com)
  • A continuing theme of the work in these laboratories is the relationship between structure, reactivity and stereoselectivity in a variety of organo-element systems, particularly, silicon, phosphorus, tin, sulfur and lithium containing compounds. (illinois.edu)
  • In our body, Betaine is a naturally occurring compound that plays a role in osmoregulation. (wellnessadvocate.com)
  • Methane-eaters are important for the reduction of greenhouses gas emissions from volcanoes and other areas, but have not previously been linked with nitrogen emission. (phys.org)
  • To get a more detailed view on the SOM degradation mechanisms employed by ECM fungi, we now study radical reactions and the associated chemical modifications of carbon compounds in situ using Fourier-Transform Infrared and Raman spectromicroscopy. (lu.se)
  • When the deposition of nitrogen exceeds such critical loads, it can lead to eutrophication and biodiversity loss. (europa.eu)
  • Corticosteroids are not indicated for the management of increased intracranial pressure in hyperammonemia because they induce negative nitrogen balance. (medscape.com)
  • The mechanisms for liberating this nitrogen are unclear since ectomycorrhizal fungi have lost many genes encoding lignocellulose-degrading enzymes present in their saprotrophic ancestors. (lu.se)
  • Organic nitrogen mining by ectomycorrhizal fungi has until now only been attributed to proteolysis. (lu.se)
  • In addition my research program encompasses the development and application of tandem heterodiene cycloadditions for the synthesis of complex natural (alkaloids) and unnatural (fenestranes) nitrogen containing compounds. (illinois.edu)
  • Toxic hydroxylamine is formed by the degradation of ammonium. (phys.org)
  • When given as a substrate, hydroxylamine was directly and entirely reduced to ammonium (up to 5 mM). (udel.edu)
  • The new compound, a light-colored, viscous paste, is easily soluble in water with the formation of strongly foaming solutions and can be used as a disinfectant. (google.com)
  • At the beginning of the 20th century, most nitrogen was fixed into usable forms (e.g. (cdc.gov)
  • Phosphorus is not as abundant as nitrogen and often is the limiting element for plant growth. (usgs.gov)
  • Nitrogen is the most abundant gas in Earth's atmosphere, comprising approximately 78% of the air we breathe. (virtualtourist.com)
  • The agriculture sector accounted for 94% of all reduced nitrogen deposition in EU-27 Member States, from which about 72% of emissions came from livestock in 2021. (europa.eu)