High nitrate concentrations. Medical search. Frequent questions

In addition, the epidemiological data provided no evidence for an association between exposure of humans to nitrite and nitrate and the risk for cancer. (inchem.org)
Adverse effects, blood pressure, heart rate, haemoglobin concentra-tion, per cent methaemoglobin in blood and plasma nitrite and nitrate concentration were recorded frequently for 24 h after each administration of sodium nitrite. (inchem.org)
Prime removes chlorine and chloramine (even in high chloramine levels), and detoxifies ammonia, nitrite, and nitrate. (liveaquaria.com)
Prime detoxifies nitrite and nitrate, allowing the biofilter to more efficiently remove them. (liveaquaria.com)
Prime also contains a binder which renders ammonia, nitrite, and nitrate non-toxic. (liveaquaria.com)
The results of water quality analysis in estuaries showed that salinity, organic matter, ammonia, nitrite and nitrate, and phosphate exceed the standard threshold for water quality standards for fish pond aquaculture. (who.int)

Nitrogen undergoes the nitrogen cycle, where it is converted into different forms (i.e nitrogen ( N 2 {\displaystyle N_{2}} ), nitrate( N O 3 − {\displaystyle NO_{3}^{-}} ), and ammonia ( N H 3 {\displaystyle NH_{3}} )) through various processes, such as fixation, ammonification, nitrification, and denitrification. (wikipedia.org)
Nitrification, the oxidation of ammonia via nitrite to nitrate, is a key process in marine nitrogen (N) cycling. (nature.com)
Nitrification is a key process in oceanic N-cycling as it oxidizes ammonia via nitrite to nitrate, which is the main source of nitrogen for many marine primary producers. (nature.com)
Concentrations of nitrate and ammonia at the 16-inch depth in the soil did not increase following swine manure applications. (usda.gov)
AQUAVI® Pro-Pond consists of three strains of bacteria that effectively remove ammonia, nitrate and nitrite from the water. (evonik.com)
In the rumen, nitrates (NO 3 ) are converted to nitrites (NO 2 ), which are converted to ammonia and then amino acids. (ontario.ca)
As a result, urine patches can produce gaseous emissions of ammonia, nitrous oxide and dinitrogen, and result in increased leaching of nitrate from soils. (bangor.ac.uk)
The results showed that the dominant water quality parameters affecting estuarine water quality were salinity, total organic matter, nitrogen content, either in the form of ammonia, nitrate, or nitrite, and phosphorus content, especially phosphate. (who.int)

However, when nitric oxide is sequestered by an organic compound to form an organic nitrate, the nitric oxide is removed from the catalytic cycle that forms ozone. (purdue.edu)
Nitrates are converted into nitric oxide. (vitacost.com)
Nitrates are compounds in beet juice that convert into nitric oxide in the blood and help widen and relax blood vessels. (healthline.com)
Coadministration of nitrates or nitric oxide donors is contraindicated due to risk of hypotension. (medscape.com)
Designated discussant of the NITRATE-CIN trial at the ESC Hotline session, Roxanna Mehran, MD, Icahn School of Medicine at Mount Sinai, New York City, said the study was well designed, and the "interesting and plausible" hypothesis to raise nitric oxide levels by dietary nitrates "makes sense. (medscape.com)

Nitrogen's impact on the environment is not solely determined on its form within the nitrogen cycle, but the overall concentration of each form. (wikipedia.org)
When nitrogen in the form of nitrate is in excess, it can lead to a dead zone. (wikipedia.org)
More than half (52%) of the nitrogen concentration comes from soybeans and corn. (wikipedia.org)
This nitrogen is usually in the form of nitrate. (wikipedia.org)
The sources of this nitrogen are unknown and the reasons as to why nitrate is increasing in some areas of the Mississippi River Basin while decreasing in others is still a mystery. (wikipedia.org)
Concentrations and mass losses of total Kjeldahl nitrogen (TKN), NH4-N, dissolved reactive P (DRP), and total P in runoff increased significantly (à=0.05) following slurry applications, and doubled when slurry application doubled. (usda.gov)
However, when organic nitrates decompose and release nitrogen oxides back into the atmosphere, ozone formation is enhanced again. (purdue.edu)
Moreover, organic material in decomposition, imbalance in N, S, and C cycles, excessive uptake of cations over anions and the uptake of nitrogen by leguminous crops all increase the concentration of H + and reduce soil pH (Figure 1 ). (frontiersin.org)
Nebraska, an agriculturally intensive mid-western state of the United States (U.S.), has a large number of wells with nitrate concentrations above the drinking water standard (10 mg NO3-N/L). Large amounts of nitrogen fertilizers and irrigation water are applied in Nebraska to increase and maintain agricultural production. (unl.edu)
Splitting nitrogen fertilizer application can reduce nitrate-N losses to groundwater. (unl.edu)
Nitrates accumulate in the corn plants when there is a large amount of readily available soil nitrates (heavy nitrogen or manure applications, legume plowdowns) and environmental factors interfere with the plants ability to metabolize it for plant growth. (ontario.ca)
Very little is known about how these large nitrogen influxes and subsequent high ammonium concentrations affect soil carbon and nitrogen cycling within urine patches. (bangor.ac.uk)
Nitrogen isotopes showed no significant enrichment in 15N (δ15N range from +1.1 to +4.6‰ in counterfeits and from +2.5 to +3.3‰ in genuine tobaccos) as might be expected from a sewage or manure source of nitrate, and a mineral phosphate source is considered the more likely source of metals. (who.int)

Drainage from crop fields has caused nitrate to leach into groundwater, which has adversely affected some drinking water sources in the Mississippi River Basin. (wikipedia.org)
Nitrate concentrations of our groundwater are among the highest in the European Union. (phys.org)
Consequently, nitrate contamination in Nebraska's groundwater continues to occur from leaching through the vadose zone. (unl.edu)
Understanding the occurrence of nitrate in the Nebraska's groundwater system and the protection of groundwater from contamination is among the challenges in the conservation of Nebraska's drinking water resources. (unl.edu)
The results of the CART model indicated that groundwater nitrate concentrations correspond with vadose zone thickness, hydraulic conductivity, and saturated thickness in the west. (unl.edu)
Using RZWQM2 to examine the BMPs and climatic scenarios, the results indicated that the conversion of gravity to sprinkler irrigation can reduce nitrate-N losses to groundwater. (unl.edu)
Unplanned and substantial withdrawals of groundwater from the shallow aquifer of Ras Jbel have resulted in severe water level decline of up to 7 m in some areas and high total dissolved solids (TDS) contents reaching 8000 mg/l. (hindawi.com)
We recruited 37 participants from the Lower Yakima Valley, WA, a community with a large Latinx population and elevated nitrate concentrations in groundwater. (cdc.gov)

However, concentrations of trace elements are not elevated above naturally occurring levels in soils. (usgs.gov)

A 2022 meta-analysis notes that nitrates derived from beetroot juice lowered systolic blood pressure in adults with hypertension. (healthline.com)
The study behind this claim set out to test the theory that beetroot juice, a rich source of nitrates, can increase muscle stamina. (mynewsdesk.com)
It found that seven volunteers who drank half a litre of beetroot juice each day for a week doubled the amount of nitrate in their blood. (mynewsdesk.com)
Whether or not beetroot juice can be used as a natural nitrate supplement, and whether it is of benefit to athletes needs further testing. (mynewsdesk.com)
The beetroot juice contained 5.1mmol of nitrate (NO3), while the control drink had negligible nitrate content. (mynewsdesk.com)
On the last three days of the test periods (days four to six) the beetroot juice groups had a significant increase in plasma nitrite (a result of the breakdown of nitrate by the body). (mynewsdesk.com)
Vegetables like celery, cabbage spinach, lettuce and beetroot apparently have high concentrations of nitrates. (healthjockey.com)
At this point, "the only way to get inorganic nitrate is in the diet - specifically by consuming beetroot juice or green leafy vegetables such as spinach and rocket. (medscape.com)
However, Jones noted that it is possible to buy beetroot shots, which contain 7 mmol of potassium nitrate in each shot, from health food shops and websites, and two such shots per day for 5 days would give a similar dose as that used in this study, starting the day before angiography. (medscape.com)

Aseptic neonatal conjunctivitis most often is a chemical conjunctivitis that is induced by silver nitrate solution, which has been used at birth since the late 1800's for prophylaxis of infectious conjunctivitis (a procedure known as Credé's prophylaxis). (medscape.com)
Chemical conjunctivitis is becoming less common owing to the use of erythromycin ointment or povidone iodide in place of silver nitrate solution for the prophylaxis of infectious conjunctivitis. (medscape.com)
Although several noninfectious and infectious agents can inflame the conjunctiva, the most common causes of neonatal conjunctivitis are silver nitrate solution and chlamydial, gonococcal, staphylococcal, and herpetic infections. (medscape.com)
Aim: This study evaluated the surface roughness, topography and permeability of bovine enamel by profilometry and scanning electron microscopy (SEM) with and without silver nitrate solution, after exposure to different bleaching agents. (bvsalud.org)
For permeability evaluation, the samples were immersed in a 50% silver nitrate solution and analyzed using a backscattered electron and secondary electron mode. (bvsalud.org)

Concentrations of some long-banned but persistent organochlorine pesticides (such as DDT) or total PCBs exceed environmental guidelines for streambed sediment at 22 percent of the sites sampled. (usgs.gov)
Denitrification rates ranged from non-detectable to 12 mmol N m −2 d −1 , and correlated positively with both bottom water nitrate concentration and sediment. (lu.se)
and correlated positively with both bottom water nitrate concentration and sediment organic carbon content. (lu.se)
Nitrification and denitrification activity was compared in sieved and in undisturbed sediment cores in laboratory mesocosms at 2 different concentrations of nitrate. (int-res.com)
Comparison of the enhancement of denitrification by oligochaetes with other similar studies of denitrification in eutrophic sediment bioturbated by tube-dwelling chironomids indicates that at a similar biomass oligochaetes are less effective at mobilizing nitrate to deeper sediment layers. (int-res.com)

It is made from other chemicals known as hexamine, ammonium nitrate, nitric acid, and acetic acid. (cdc.gov)

The nitrate seeps through the soil and gets into the ground water through agricultural practices such as tile drainage, which eventually makes its way into the surface waters. (wikipedia.org)
They were negatively correlated with soil nitrate concentration at harvest (an indicator of environmental function). (usda.gov)
The decomposition of the organic matter, the imbalance of the N, S, and C cycles, the excess in the cation uptake on anions and the N fixation by the legumes influence the concentration of protons [H + ] in the soil solution. (frontiersin.org)
Total Al concentration in the soil and the speciation of Al depend on the pH and the chemical environment of the solution ( Kisnieriené and Lapeikaité, 2015 ). (frontiersin.org)
Following rainfall, the normal conversion of nitrates to plant protein resumes in a few days as the plant metabolism "catches up" to available soil nitrates, and plant nitrate levels return to more normal levels. (ontario.ca)
Test systems were dosed with Phosflex 71B (tBuTPP) at nominal concentrations of 0, 30, 100, 300, 1000, and 2987 mg/kg dry soil, and incubated at approximately 20º C for 28 days. (europa.eu)
tBuTPP)/kg dry soil, the highest concentration tested. (europa.eu)

While nutrient concentrations remained high at low algal densities in autumn and at moderate discharge in summer, high algal concentrations occurred at low discharge in summer. (ufz.de)
Here, we exposed oysters to acidification and hypoxia to examine their physiological responses (molecular defense and immune response), changes in community structure of their associated microbial community, and changes in water nutrient concentrations to evaluate how acidification and hypoxia will alter the oyster holobiont's ecological role. (frontiersin.org)
Leaf tissue analysis is the quantitative determination of the total mineral nutrient concentrations in the leaf. (ufl.edu)
Leaf analysis is a useful tool to detect problems and adjust fertilizer programs for citrus trees because leaf nutrient concentrations are the most accurate indicator of fruit crop nutritional status. (ufl.edu)
Leaf samples must be taken at the correct time of year because nutrient concentrations within leaves continuously change. (ufl.edu)

The researchers were interested in measuring phosphocreatine, also known as creatine phosphate (Pcr), as this provides a rapidly mobilised reserve of high-energy phosphates released during exercise. (mynewsdesk.com)
Trace element patterns suggest that over-application of fertilizers (phosphate and/or nitrate) is the most likely cause. (who.int)

Learn when corn damaged by dry weather for silage, green chop or grazing can develop high nitrates poisonous to livestock and silo gas. (ontario.ca)
Nitrates can be reduced 25 - 65 percent during a proper silage fermentation. (ontario.ca)
Corn silage that is harvested too wet or too dry will not ferment as well, resulting in the nitrates levels remaining higher than normal. (ontario.ca)
To maximize yield and manage nitrate risks, a good strategy would be to harvest at normal cutting heights, store as silage, analyze fermented silage samples for nitrates and then manage dietary levels through feeding management. (ontario.ca)
In situations where immature or drought-stressed corn is being harvested, there is potential for high nitrate concentrations in the silage. (farmprogress.com)
If high nitrate concentrations are a concern, submit a sample to a forage testing lab before the silage is fed to livestock. (farmprogress.com)

Mass balance calculations revealed a total nitrate uptake of 423 mg N m -2 d -1 . (ufz.de)
In conclusion, riverine nutrient uptake strongly depends on the growth conditions for phytoplankton, which are favored at high irradiation and low discharge. (ufz.de)

Nanofiltration, with the ability to reject several trace organic compounds, heavy metals and viruses at a lower energy demand than reverse osmosis, has found application for the production of high quality drinking water in developed nations. (researchgate.net)
However, it was aware that nitrite is formed in the human body by reduction of nitrate and that N-nitroso compounds can also be formed from nitrite and N-nitrosatable compounds under certain conditions. (inchem.org)
Thus, the assessment of the health risk of nitrate to humans should encompass the toxicity of both nitrite and N-nitroso compounds, and the animal species used for safety evaluation should be closely related to humans with respect to the toxicokinetics of nitrate and the conversion of nitrate to nitrite. (inchem.org)
Furthermore, in the toxicological evaluation of nitrate, it should be considered in conjunction with nitrite and potential endogenously formed N-nitroso compounds. (inchem.org)
Among all the volatile organic compounds emitted into the atmosphere, isoprene is the most important non-methane organic compounds, marked by its high emission rate and high photochemical reactivity. (purdue.edu)
It is estimated that for this unsaturated carbonyl nitrate, photolysis is its dominant atmospheric degradation pathway, instead of reaction with OH, which is the most important loss mechanism for most organic compounds in the atmosphere. (purdue.edu)
Beets contains compounds such as nitrates, betaine and pigments called betalains, which have several health benefits. (vitacost.com)
We examined the characteristics of 74 patients with OA induced by low molecular weight compounds (LMWC) or by high molecular weight compounds (HMWC) and diagnosed by specific inhalation challenge (SIC). (cdc.gov)
Sputum by sensitization to either a specific allergen (high molecu- eosinophils increase further after exposure to both HMWC lar weight compounds, HMWC) or chemical compounds and LMWC, showing the increase in allergic airway inflam- (low molecular weight compounds, LMWC) present in the mation induced by these specific sensitizers [6]. (cdc.gov)

High burial rates could partly be sustained by phosphorus import from the open Baltic Sea. (lu.se)
Water entering the estuary has an impact on high concentrations of total organic matter, increased concentrations of Total N, and phosphorus. (who.int)

However, as a result of fertilizer use leveling off since 1985, nitrate concentrations may be beginning to level off in some areas. (usgs.gov)

Given the ubiquitous existence of chloride, nitrate, and acidic aerosols, we propose that nitrate photolysis is a significant daytime chlorine source globally. (nature.com)
We propose that nitrate photolysis at high aerosol acidity is an important pathway for activating inert chloride to produce photoliable Cl 2 during daytime in the polluted troposphere. (nature.com)
The photolysis frequency of the nitrate was also obtained in chamber experiments and extrapolated to the ambient environment. (purdue.edu)

Improving the health of aquatic ecosystems may require reducing nitrate concentrations in ground water. (usgs.gov)
Nitrates found in wastewater-which make their way into our lakes, rivers and streams-can wreak havoc on our aquatic ecosystems. (marsdd.com)

This ADI was based on a NOEL for sodium nitrate of 500 mg/kg bw/day derived from a long-term toxicity study in rats and a short-term toxicity study in dogs together with a safety factor of 100. (inchem.org)
The Committee noted that nitrate per se can generally be considered to be of relatively low toxicity. (inchem.org)
Symptoms of nitrate toxicity include a rapid breathing, fast and weak heartbeat, difficult breathing, muscle tremors, staggering and death. (ontario.ca)

Concentrations of nitrate in many wells exceed the drinking water standard ( p. 6 -8). (usgs.gov)
Nitrate concentrations in about 20 percent of all wells exceed the drinking water standard, which is the U.S. Environmental Protection Agency maximum contaminant level (MCL). (usgs.gov)
The primary source of nitrate in ground water is agricultural fertilizers. (usgs.gov)
Pesticides are frequently detected, although generally at concentrations below drinking water criteria ( p. 10 -11). (usgs.gov)
The human health significance of very low concentrations of several pesticides is uncertain because drinking water standards do not exist for 40 percent of the pesticides detected or for occurrences of multiple pesticides. (usgs.gov)
Concentrations of nitrate and pesticides are generally similar in shallow ground water and in surface water at base flow, which occurs in winter. (usgs.gov)
A dead zone is a body of water that has a depleted oxygen concentration that is low and can lead to the suffocation of animals. (wikipedia.org)
The water in the Des Moines River is near the maximum legal level of nitrate concentrations for drinking water, and the EPA has declared much of the fish in the river unsafe to eat. (wikipedia.org)
Science to Stewardship is a place-based education program connecting high school students with local water quality issues. (sdcoastkeeper.org)
Water is vital to the existence of all living organisms, but its value is increasingly being threatened as human populations grow and demand more water of high quality for various activities. (academicjournals.org)
High nutrient levels in surface runoff from intensive animal production areas often promote excessive algae growth in streams and lakes, and lead to serious water-quality problems. (usda.gov)
This research found that concentrations and mass losses of water-soluble nutrients in storm runoff from pasture increased significantly following swine manure applications, and doubled when manure application doubled. (usda.gov)
Nutrient loss in runoff from manure applications can be a serious threat to water quality, but information from this research can help agricultural producers make better manure management decisions to protect water quality while maintaining high levels of production. (usda.gov)
High infiltration rates reduced runoff volumes and runoff concentrations of soluble nutrients: Cl, total dissolved solids, DRP, TKN, and NH4-N. Concentrations of NO3-N and NH4-N in leachate water, collected at 0.4-m depth by suction cup lysimeters, did not increase following slurry applications. (usda.gov)
It said that one of its water sources has been essentially unusable this summer because of high levels of toxins. (circleofblue.org)
Microcystin levels in the river are up to ten times higher than a federal guideline for drinking water. (circleofblue.org)
When nitrate levels are high, Des Moines Water Works must engage a specialized treatment system that is costly to operate. (circleofblue.org)
The well would draw water from underground that is free of toxins and nitrates. (circleofblue.org)
Consequently the nitrate concentration is often higher than the drinking water standard of 50 mg/l. (europa.eu)
Real Tech provides high-quality UV photometric and spectroscopic analytical instrumentation for the water and wastewater industries. (marsdd.com)
Plus, consuming a high concentration of nitrates through drinking water has links to health concerns, especially for babies. (marsdd.com)
Nitrification and total denitrification rates were positively correlated to oligochaete biomass between 0 and 4 g dry weight m -2 at both 33 and 268 μM nitrate in the inflowing water. (int-res.com)
Denitrification ( d w ) was relatively more stimulated by the oligochaetes at high concentrations of nitrate in the overlying water than at low nitrate concentrations. (int-res.com)
Prime also detoxifies any heavy metals found in the tap water at typical concentration levels. (liveaquaria.com)
Great for setting up new aquariums, or when adding or changing water, or to remove nitrate. (liveaquaria.com)
Trends in public water systems suggest that private wells in Latinx communities may have higher nitrate concentrations than wells in other communities. (cdc.gov)
Short-term exposure this study which was conducted over 6 to high levels of nitrates in drinking water months between the beginning of June 2002 can cause methaemoglobinaemia, known as and the end of November 2002. (who.int)
The general objective of this study was from infants into EDTA tubes by a well- to evaluate the relationship between nitrate trained laboratory technician and tested for concentrations in the drinking water sources haemoglobin (Hb) and Met-Hb. (who.int)
People safely come in contact with water every day through drinking tural areas have moderate and eating, bathing, participating in recreational activities, and inhaling to high risk of nitrate water vapor or mist. (cdc.gov)

Weeds such as lambsquarters, pigweed and others can also accumulate nitrates. (ontario.ca)

Laboratory experiments show that illuminating solution of sodium chloride and nitrate under acidic condition and ambient particulates can produce a large amount of Cl 2 , which can explain a large fraction of the observed Cl 2 at our site. (nature.com)

It is believed that on eating high-nitrate foods, good bacteria in the mouth transforms nitrate into nitrite. (healthjockey.com)

High levels of nitrites impare the ability of blood hemoglobin to carry oxygen. (ontario.ca)
The purpose of this study was to investigate further how a short-term diet of nitrate might result in muscles using less oxygen during exercise. (mynewsdesk.com)
During exercise, phosphocreatine is used as an energy source, lowering its concentration in the muscles, and vO2 is increased as the lungs take in more oxygen. (mynewsdesk.com)
Moreover, the higher infiltration of silver nitrate suggests an easier penetration path for the oxygen molecules into the dentin substrate. (bvsalud.org)

Nitrate incidents with legumes are rare, but have been reported. (ontario.ca)

AMSTERDAM, Netherlands - A simple, low-cost 5-day course of dietary inorganic nitrate has shown apparent overwhelming benefit in preventing contrast-induced nephropathy (CIN) and reducing subsequent renal and cardiovascular outcomes. (medscape.com)
In the NITRATE-CIN Study, non-ST segment elevation myocardial infarction acute coronary syndrome (ACS) patients at risk of renal injury from coronary angiography who received dietary inorganic nitrates had a 70% reduction in CIN compared with those given placebo. (medscape.com)
We feel that dietary inorganic nitrate shows huge promise in this study, and these findings could have important implications in reducing this serious complication of coronary angiography," Jones concluded. (medscape.com)
He explained that the product used was a formulation of dietary inorganic nitrates given as potassium nitrate capsules, which the study investigators produced specifically for this trial. (medscape.com)

If high nitrates are a concern, the cutter bar could be raised to leave more of the stalk in the field. (ontario.ca)

Eutrophication, caused by high concentrations of nutrients, is degrading streams ( p. 17 , 18 ). (usgs.gov)
Based on our study results, romaine was generally higher in nutrients analyzed, especially red romaine contained significantly higher amount of total carotenoids, total anthocyanins and phenolics. (researchgate.net)
Soils that had a high infiltration rate produced less storm runoff (as expected), but also had lower concentrations of the soluble nutrients in storm runoff. (usda.gov)

Nitrate concentrations are generally highest in shallow wells in irrigated areas, including many domestic wells and shallow public supply wells. (usgs.gov)
Nitrate concentrations in shallow wells are among the highest in the Nation ( p. 22 ). (usgs.gov)
The results of assessing costs of nitrate contamination in domestic wells indicated that a reverse osmosis Point-of-Use (POU) treatment is the option with the lowest costs for a household, but the biological denitrification Point-of-Entry (POE) treatment system is most likely to be suitable with lower treatment costs for a community. (unl.edu)

Hence, formation of organic nitrates can reduce the ozone production rate near the ground. (purdue.edu)
Therefore, detailed understanding of the production and degradation processes of organic nitrates is important to controlling ground-level ozone to a safe level. (purdue.edu)
Therefore, this work is focused on the chemical processes surrounding isoprene-derived organic nitrates. (purdue.edu)
Chapter two describes the sensitivity tests on the ionization efficiency using iodide as the reagent ion to detect multi-functional organic nitrates via mass spectrometry, such as hydroxynitrate. (purdue.edu)
The results suggested that iodide ion is not sensitive to alkyl alcohol or alkyl nitrate, but the combination of these two functionalities, such as those in α,β-hydroxynitrates, can increase the sensitivity by five orders of magnitude, making iodide-based chemical ionization a very powerful tool to study organic nitrates. (purdue.edu)
The rates exhibited a strong decreasing gradient from land to the open coast, which was likely driven by the availability of nitrate and labile organic carbon, but a high proportion of non-cohesive sediments in the coastal zone decreased the denitrification efficiency relative to the open sea. (lu.se)

Thus, more people have angina in the morning, when arterial tone is relatively high. (msdmanuals.com)

The high Cl 2 concentrations significantly increased atmospheric oxidation. (nature.com)
In the dog, in addition to strong salivary secretion, large quantities of nitrate were excreted in the bile following i.v. administration of nitrite, thus confirming this pathway of excretion as well as oxidation of nitrite in vivo (Walker, in press). (inchem.org)
A series of chamber experiments was conducted to derive the yield of the first-generation hydroxynitrates in the OH-initiated oxidation of isoprene under high NO condition. (purdue.edu)
Therefore, the isoprene oxidation chemistry undergoes a transition from the high NO to the low NO regime through the course of one day, and highly oxidized products such as dihydroxy hydroxyperoxy nitrate can be expected. (purdue.edu)
Chapter six describes a focused kinetics study on a synthesized carbonyl nitrate, which is a product of the NO3-initiated isoprene oxidation reaction. (purdue.edu)

At the sixth meeting, an ADI of 0-5 mg/kg bw, expressed as sodium nitrate, was allocated. (inchem.org)

However, the kinetics of nitrate secretion in rat saliva appear to have been less well studied than in humans, and even less is known concerning salivary secretion in mice. (inchem.org)

We show that previously proposed Cl 2 production mechanisms cannot account for the large Cl 2 daytime source at this site and this source positively correlates with solar radiation, particulate nitrate, and particulate surface area. (nature.com)

Iron and bone health-promoting minerals (Ca, Mg and Mn) were significantly higher ( P ≤ 0.001) in romaine. (researchgate.net)
The risk of nitrate poisoning while green chopping or grazing this corn is significantly higher during the 5 - 7 day period after a rainfall than during the actual period of dry weather. (ontario.ca)
Here we compare the heavy metal concentrations in tobacco from a sample of 47 counterfeit products, representative of the substantial market for these products in the U.K., with their genuine equivalents and find significantly higher concentrations of heavy metals in the counterfeits. (who.int)

However, no concentrations of an herbicide exceed MCLs or health advisories. (usgs.gov)
The newer pesticides, which are less persistent in the environment than the discontinued ones, were not detected at concentrations above MCLs or health advisories. (usgs.gov)

Although corn is the most likely forage crop to cause nitrate poisoning, high nitrates can also occur in sorghums, sudangrass and cereals. (ontario.ca)

Ironically, silver nitrate was later found to be toxic to the conjunctiva, particularly in higher concentrations, potentially causing a sterile neonatal conjunctivitis. (medscape.com)
In plants and other organisms, Al can have a beneficial or toxic effect, depending on factors such as, metal concentration, the chemical form of Al, growth conditions and plant species. (frontiersin.org)
The concentration of toxic agent and duration of its contact primarily determine the degree of skin destruction. (medscape.com)

Nitrospinae have, under in situ conditions, around four-times higher biomass yield and five-times higher growth rates than AOA, despite their ten-fold lower abundance. (nature.com)
We investigated the basic conditions leading to high phytoplankton biomass and corresponding nutrient dynamics in eutrophic, 8th order River Elbe (Germany). (ufz.de)

Nitrate levels can fluctuate daily within the plant, so it is difficult to assess this dynamic risk. (ontario.ca)
A model was proposed to assess the penetration through dental hard tissues, including enamel, using silver nitrate 9 . (bvsalud.org)
differences in the type of airway changes induced by low and The aim was to assess, in this specific model of asthma, high molecular weight agents. (cdc.gov)

Although several studies have been focused on morphological changes on dental surfaces after bleaching, this seems to be one of first studies reporting on the jump-start approach using silver nitrate penetration to track and evaluate the possible channels of O- penetration. (bvsalud.org)

Concentrations of only three pesticides exceed the MCL or a health advisory: dieldrin, EDB, and 1,2-dichloropropane. (usgs.gov)
After subjecting the participants to a 10-hour fast on the first day itself they were made to fill in a health status report, and eat a high- or low-nitrate breakfast. (healthjockey.com)
A review of the health effects of heavy metal transfer from tobacco via smoke to the lungs indicates that habitual smokers of counterfeits may be risking additional harm from high levels of cadmium and possibly other metals. (who.int)
these are a high level of nitrates, above the interna- the main health centres in Jabalia, Gaza City tional recommended level. (who.int)

Coal-tar-based pavement sealant is a potent source of polycyclic aromatic hydrocarbons (PAHs), as documented by the USGS and other researchers.Coal-tar-based sealcoat products typically are 20 to 35% coal tar or coal-tar pitch-these materials are known human carcinogens that contain high concentrations of PAHs and related chemicals. (usgs.gov)
The researchers used concentrations and volumes of chemicals designed to maximise the effect of nitrate on muscles. (mynewsdesk.com)
A test of metabolism used in sports science called 31P-magnetic resonance spectroscopy (31P MRS). This is a special form of magnetic resonance imaging in which the concentrations of chemicals in the body, such as the phosphates involved in energy metabolism in muscles, can be directly measured. (mynewsdesk.com)

One of the main types of pollution is an excess of nitrate (NO−3) caused by chemical wastes from power plants and agricultural runoffs. (wikipedia.org)
The 5 to 7 days following a rainfall that ends a severe dry period would have the highest risk of excess nitrates, so avoid harvesting or grazing during this period. (ontario.ca)

Having potassium levels that are too high can result in similar symptoms and be life threatening. (healthline.com)

The highest exceedance rates occur where fertilizer use and irrigation are greatest. (usgs.gov)
It is difficult to predict with certainty when high nitrates will occur. (ontario.ca)

Rotating corn and soybean is an efficient management practice to lower nitrate-N concentrations in the deep vadose zone, compared with continuous corn. (unl.edu)

Infants who are born to infected mothers are at high risk (approximately 25%-50%) of developing an infection. (medscape.com)

This is particularly high risk during the 5 - 7 days following a rain that ends a severe dry period. (ontario.ca)
This period following the rain is much higher risk than the dry period itself. (ontario.ca)
We recruited a higher risk group than we thought, which is why the control event rates were higher than we expected, but the acute kidney injury reduction is roughly what we had estimated, and makes sense biologically. (medscape.com)

The company's system allows extremely small concentrations of contaminants to be detected, which is essential for detecting many problematic contaminants. (marsdd.com)

Other weather events causing potentially high nitrates include hail, frost, and cloudy weather, although these are much less likely. (ontario.ca)

Responding to questions about whether such a large effect could actually be achieved with dietary nitrates, Jones said he thought there would definitely be some benefits, but maybe not quite as large as those seen in this study. (medscape.com)

The nitrate group also showed an impressive reduction in periprocedural myocardial infarction (MI) and improved renal function at 3 months, as well as a halving of major adverse cardiovascular events and major adverse kidney events at 1 year. (medscape.com)

Transitioning from dryland production to irrigation can lead to increased nitrate-N concentrations. (unl.edu)

Real Tech's technology provides an enhanced ability to detect nitrate and presents more accurate measurements than its competitors. (marsdd.com)

Under certain environmental conditions, this corn can be high in nitrates (NO 3 ) which can result in the fatal poisoning of livestock, and also the death of humans from silo gas. (ontario.ca)

Nitrate concentration can be dangerous passed a certain level. (wikipedia.org)
The bottom third of the stalk contains a much higher level of nitrates. (ontario.ca)

In addition to the saliva, secretion of nitrate occurs at other sites in the GI tract leading to reduction by the gut flora. (inchem.org)

In the investigated lettuce cultivars, insoluble fiber content was higher ( P ≤ 0.05) in romaine than crisphead lettuces. (researchgate.net)

Anatomy1

Diseases1

Chemicals and Drugs13

Phenomena and Processes2

Disciplines and Occupations1

Technology, Industry, Agriculture1

Health Care3

Geographicals1

Nitrite and nitrate6

Ammonia8

Nitric oxide5

Nitrogen13

Groundwater8

Occurring levels1

Beetroot9

Silver nitrate solution5

Sediment5

Ammonium1

Soil7

Nutrient concentrations5

Phosphate2

Silage6

Uptake2

Compounds9

Phosphorus2

19851

Photolysis3

Aquatic ecosystems2

Toxicity3

Water29

Accumulate1

Laboratory1

Bacteria1

Oxygen4

Legumes1

Inorganic4

Concern1

Nutrients3

Wells3

Organic6

Angina1

Oxidation5

Sodium1

Kinetics1

Positively1

Significantly higher3

MCLs2

Forage1

Toxic3

Biomass2

Assess3

Evaluate1

Health4

Chemicals3

Excess2

Potassium1

Occur2

Soybean1

Infants1

Risk3

Contaminants1

Potentially1

Dietary1

Myocardial1

Irrigation1

Detect1

Corn1

Level2

Occurs1

Lettuce1