Nitrogen dioxide (NO2), a combustion-generated oxidant gas, is widely present in indoor and outdoor environments. Outdoors, where it comes primarily from combustion engines, industry, and power generation, it is a precursor to particles and ozone. Indoors, NO2 is generated by gas cooking and heating, and it exists as a gas along with other oxides of nitrogen. Many epidemiological studies have e...

Chronic heart failure (CHF) reduces nitric oxide (NO) bioavailability and impairs skeletal muscle vascular control during exercise. Reduction of NO2 (-) to NO may impact exercise-induced hyperemia, particularly in muscles with pathologically reduced O2 delivery. We tested the hypothesis that NO2 (-) infusion would increase exercising skeletal muscle blood flow (BF) and vascular conductance (VC)...

(NO2−) is a potential contaminant in aquatic environments that receive nitrogenous waste and in recirculated aquaculture systems. Several studies have examined the toxicity and physiological effects of NO2− in fish (for reviews, see Lewis and Morris, 1986; Eddy and Williams, 1987; Jensen, 1995, 1996). Most investigations have concerned freshwater teleosts, because NO2− is generally more toxic t...

The present study focuses on the spatio-temporal variation of nitrogen dioxide (NO2) during June 2013 to May 2015 and its futuristic emission scenario over an urban area (Durgapur) of eastern India. The concentration of ambient NO2 shows seasonal as well as site specific characteristics. The site with high vehicular density (Muchipara) shows highest NO2 concentration followed by industrial site...

The current perspective holds that the generation of secondary signaling mediators from nitrite (NO2(-)) requires acidification to nitrous acid (HNO2) or metal catalysis. Herein, the use of stable isotope-labeled NO2(-) and LC-MS/MS analysis of products reveals that NO2(-) also participates in fatty acid nitration and thiol S-nitrosation at neutral pH. These reactions occur in the absence of me...

The UV–visible spectra of a series subphthalocyanines (SubPcs) characterized by three different axial substituents (An) in combination with H, F, NO2, SO2H and SO2CH3 peripheral (Ri) were predicted analyzed means time-dependent DFT calculations, including chloroform as solvent. In this analysis, we paid particular attention to the Q band, which remained almost unchanged regardless nature substi...

< Ge33Se67 thin film and quartz crystal microbalance for NO2 gas sensing. < Physisorption of NO2 in Ge33Se67 thin films. < Reversibility of the NO2 sorption in Ge33Se67 thin films. < Pure physical effect of gas sorption revealed by Raman, XPS, AFM. < Large free volume of the thin films encountered through GAXRD. a r t i c l e i n f o

The photochemistry of nitrate ions in bulk aqueous solution is well known, yet recent evidence suggests that the photolysis of nitrate may be more efficient at the air-water interface. Whether and how this surface enhancement is altered by the presence of different cations is not known. In the present studies, thin aqueous films of nitrate salts with different cations were deposited on the wall...