Fertilized soils have large potential for production of soil nitrogen oxide (NOx=NO+NO2), however these emissions are difficult to predict in high-temperature environments. Understanding these emissions may improve air quality modelling as NOx contributes to formation of tropospheric ozone (O3), a powerful air pollutant. Here we identify the environmental and management factors that regulate so...

We have constructed a pulsed corona discharge system for the removal of air pollutants, such as NOx, SOx and volatile organic compounds (VOCs), in which an emission spectrometry is employed to characterize the generation of excited species by the corona discharge process. Special attention has been paid to overcome noise problems from high voltage power supply, which hampers the measurement of ...

UNLABELLED : We have recently demonstrated that oral intake of glycine propionyl-L-carnitine (GPLC) increases plasma nitrate/nitrite (NOx), a surrogate measure of nitric oxide production. However, these findings were observed at rest, and in previously sedentary subjects. PURPOSE In the present study, we sought to determine the impact of oral GPLC on plasma NOx at rest and in response to a pe...

The oxygen isotope composition of nitrogen oxides (NOx) in the atmosphere is a useful tool for understanding the oxidation of NOx into nitric acid / nitrate in the atmosphere. A set of experiments was conducted to examine change in isotopic composition of NOx due to NOx–O2– O3 photochemical cycling. At low NOx / O2 mixing ratios, NOx became progressively and nearly equally enriched in 17O and 1...

Coal splitting and staging is a promising technology to reduce nitrogen oxides (NOx) emissions from coal combustion through transforming nitrogenous pollutants into environmentally friendly gasses such as (N2). During this process, the species in pyrolysis gas play dominant role NOx reduction. In research, series of reactive force field (ReaxFF) molecular dynamics (MD) simulations are conducted...

Compared to diesel, liquefied natural gas (LNG), often used as an alternative fuel for marine engines, comes with significant advantages in reducing emissions of particulate matter (PM), SOx, CO2, and other pollutants. Promoting the use LNG is great significance achieving carbon peaking neutrality worldwide, well improving energy structure. However, compared diesel medium- high-speed engines ma...

The atmospheric pressure non-thermal plasma has been extensively studied for decomposing environmental pollutants such as SOx [1], NOx [2,3], and VOCs [4,5] (volatile organic compounds). Many researchers have been engaged in developing removal technique of those toxic pollutants with the non-thermal plasma. A high energy electron beam (EB) irradiation is also very effective to remove SOx, NOx i...

Mobile emissions represent a significant fraction of the total anthropogenic emissions burden in the Mexico City Metropolitan Area (MCMA) and, therefore, it is crucial to use top-down techniques informed by on-road exhaust measurements to evaluate and improve traditional bottom-up official emissions inventory (EI) for the city. We present the measurements of on-road fleet-average emission facto...

Recently, air pollution is increasing sharply in Korea, caused by fine particulate matter. Nitrogen oxides (NOx) are matter precursors that significantly contribute to pollution. They transmitted into the atmosphere a large amount, especially high-volume traffic areas. This pollutant particularly harmful. Therefore, there efforts focused on NOx removal from air. As photocatalytic reaction of ti...

Because of its high polluting effect, a growing research interest in NOx monitoring, removal, and control has been noticed the last years. Motivated by degree functional structural tunability metal–organic frameworks (MOFs), researchers explored potential MOF-based adsorbents, sensors, catalysts for mitigation/control. However, this area is still infancy. In addition, physical–chemical properti...