Results 21 to 30 of about 1,088,262 (240)

Effect of the temperature of waste cooking oil methyl esters on the value of nitrogen oxides emission from the self-ignition engine [PDF]

open access: yesE3S Web of Conferences, 2020
Combustion of diesel oil and liquid biofuels in self-ignition engines is related to the emission of harmful gases to the atmosphere (i.e. nitrogen, carbon or sulfur oxides).
Marcinkowski Damian   +4 more
doaj   +1 more source

RESEARCH AND ASSESSMENT OF THE ENVIRONMENTAL SECURITY OF BAKERY ENTERPRISES

open access: yesHarčova Nauka ì Tehnologìâ, 2020
The paper considers how to decrease the concentration of nitrogen oxides in gas emissions of bakery enterprises. Nitrogen oxides (NOx) formed in the course of burning natural gas  are responsible for more than 90% of an enterprise’s hazard category.
G. Krusir   +4 more
doaj   +1 more source

Seasonal cycles of ozone and oxidized nitrogen species in northeast Asia - 2 : A model analysis of the roles of chemistry and transport [PDF]

open access: yes, 2002
[1] The dominant factors controlling the seasonal variations of ozone (O-3) and three major oxidized nitrogen species, peroxyacetyl nitrate (PAN), nitrogen oxides (NOx), and nitric acid (HNO3), in northeast Asia are investigated by using a three ...
Kato, S   +8 more
core   +4 more sources

Nitrogen oxides in the troposphere – What have we learned from satellite measurements?

open access: yesEPJ Web of Conferences, 2009
Nitrogen oxides are key species in the troposphere where they are linked to ozone formation and acid rain. The sources of nitrogen oxides are anthropogenic to large extend, mainly through combustion of fossil fuels.
Richter A.
doaj   +1 more source

Air pollution by nitrogen oxides in Sarajevo from 2005 to 2010

open access: yesJournal of Health Sciences, 2013
Introduction: Air pollution occurs when the concentration of certain substances (pollutants) reaches a size which causes its toxicity, or in other words, begins to cause harm to human health, fl ora and wildlife.
Suad Habeš   +3 more
doaj   +1 more source

REDUCTION OF NOx BY MEANS OF UREA INJECTION -ROVINARIPOWER PLANT CASE [PDF]

open access: yesAnalele Universităţii "Constantin Brâncuşi" din Târgu Jiu: Seria Inginerie, 2018
The paper examines how nitrogen in the fuel is a pollutant. The mechanism of formation of nitrogen oxides is presented: is a function of excess air, coal age (volatile matter content), and function of temperature in the
Lucica Anghelescu
doaj  

Nitrogen removal in marine environments: recent findings and future research challenges [PDF]

open access: yes, 2005
Respiratory reduction of nitrate (denitrification) is recognized as the most important process converting biologically available (fixed) nitrogen to N2. In current N cycle models, a major proportion of global marine denitrification (50–70%) is assumed to
Bo Thamdrup   +25 more
core   +1 more source

Shipping nitrogen oxides recycling via isoprene nitrate amplifies forest ozone

open access: yesCommunications Earth & Environment
Forests are essential for climate stability, yet elevated ozone levels-exacerbated by poorly understood impacts of shipping-related nitrogen oxides, stress these ecosystems.
Chunshui Lin   +5 more
doaj   +1 more source

Study on energy-saving operation technology of environmental protection facilities of ultra-low emission coal-fired unit

open access: yesEnergy Reports, 2020
The operation optimization of low nitrogen combustion, denitrification and desulfurization facility of a 335 MW coal-fired unit met ultra-low requirements has been conducted in order to lower energy and material consumption.
Bing Li, Kai Wang, Baoying Zhu
doaj   +1 more source

Influence of Pollutants from Transport on Life Expectancy in the EU Countries

open access: yesProblemy Ekorozwoju, 2021
Road transport has become the major source of environmental pollution and it is also one of the biggest environmental risks in the EU countries. Good air quality is very important for population as pollutants have negative impacts on human health.
Hana Rozehnalová   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy