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Showing 1 to 20 of 179 for “"nitrates"”.
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Nitrates and Left Ventricular Dysfunction
… also suggest beneficial long-term effects of nitrates in CHF. In the Veterans Administration Heart Failure Trial (V-HeFT) I, the combined use of a nitrate and hydralazine reduced the mortality rate. However, it is not possible to determine the relative importance of nitrate therapy in that …
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Removal of Nitrates from Stormwater Using Nanoclays
<p>Creeks and rivers are often polluted as a result of stormwater runoff that carries various contaminants in to open water bodies, causing adverse environmental and health effects. Low impact development (LID) techniques are currently employed to treat this runoff prior to discharge. Nitrate, …
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Managing ground water contamination from agricultural nitrates
Ground water contamination from agricultural nitrates poses potential adverse health effects to a large segment of the rural population of the United States. Contamination is especially prevalent in livestock intensive areas, which produce large quantities of animal waste with substantial nitrogen …
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Nepal drinking water quality assessment : nitrates and ammonia
Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2000.
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A Real -Time Core Extraction System for Soil Nitrates
Many methods exist to predict nitrates, but few have been applied in the field because a real-time extraction system is not available. For this reason, an intact core extraction procedure was tested that might be used in the field for the prediction of soil nitrates. This system used an intact core …
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Tropospheric composition of organohalogens and alkyl nitrates: tropical and temperate case studies
… composition of organohalogens and alkyl nitrates have been investigated from tropical and temperate environments. Ground based measurements and aircraft data are presented from the Oxidant and Particle Photochemical Processes (OP3) project, conducted in Borneo, 2008. Controlled …
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Tropospheric composition of organohalogens and alkyl nitrates: tropical and temperate case studies
… composition of organohalogens and alkyl nitrates have been investigated from tropical and temperate environments. Ground based measurements and aircraft data are presented from the Oxidant and Particle Photochemical Processes (OP3) project, conducted in Borneo, 2008. Controlled …
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Laboratory studies on the production of alpha-pinene-derived organic nitrates and their atmospheric fate
<p>Currently, the formation yields of organic nitrates from the oxidation of biogenic volatile organic compounds, such as α-pinene, is highly uncertain, negatively impacting our knowledge on tropospheric ozone production and the fate of atmospheric NO<sub>x</sub>. To lower this uncertainty, we …
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Observations on the Rare Earths: I. Preparation of Anhydrous Nitrates Ii. Electrochemical Studies in Anhydrous Ethylenediamine
Made available in DSpace on 2015-05-12T17:02:32Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 0010440.PDF: 4249958 bytes, checksum: 4c5a3e63da0386ed298ceacc2a5bc255 (MD5) Previous issue date: 1954
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Understanding the formation of secondary organic aerosol and the fates of organic nitrates formed from monoterpene oxidation
… oxidation of monoterpenes also produces organic nitrates. The formation of organic nitrates sequesters NOx from the atmosphere, directly suppressing the ozone production near source regions. To what extent organic nitrates affect atmospheric oxidation capacity largely depends on their fates; …
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An experimental study of the relation between the time of utilization of dissolved oxygen & nitrates in polluted water
Thesis (B.S.)--Michigan State College of Agriculture and Applied Science, 1935
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Long term trends of halogenated trace gases, hydrocarbons, alkyl nitrates and of the oxidative capacity of the atmosphere
… n-pentane and iso- pentane) and six alkyl nitrates (methyl, ethyl, 2-propyl, 2-butyl, 2+3-pentyl and 3-methyl-2- butyl) have been derived from measurements from firn air from the two Greenland sites, NEEM and North GRIP. These suggest that alkane mixing ratios peaked in the Arctic around …
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A quantitative risk assessment of exposure to nitrates in drinking water and thyroid disorders in East Anglia, United Kingdom
… epidemiological studies suggest that exposure to nitrates in drinking water is associated with thyroid disorders, including mild - to - moderate iodine deficiency; hyperthyroidism; hypothyroidism; thyroid hypertrophy (goitre) and thyroid cancer. However, the weight of evidence following a meta – …
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Elucidating the chemistry of particulate and chlorinated nitrates in the troposphere through method development, and chamber and field studies
… 2018 showed the presence of particulate organic nitrates at inlet temperatures < 350 °C (consistent with smog chamber experiments with limonene SOA) and of inorganic nitrate aerosol, demonstrating the potential of TD-CRDS for ambient particulate measurements.
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The influences of atmospheric nitrates and annual climatic variables in predisposition to winter desiccation injury in Fraser fir and red spruce
… poir. in relation to the level of atmospheric nitrates and climatic parameters of precipitation and temperatures was investigated. Data and foliage samples were collected from established field plots at 5500, 6000, and 6500 feet in the Black Mountains of North Carolina and from seedlings under …
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