Results 81 to 90 of about 363,361 (302)
Spatial and temporal assessment of gaseous pollutants in the Highveld of South Africa
South African Journal of Science, 2011 Diverse natural and anthropogenic activities in the Highveld of South Africa contribute to elevated levels of inorganic and organic gaseous pollutant species.
Alexandra Lourens +7 more
doaj
Effect of Precipitation on Air Pollutant Concentration in Seoul, Korea
Asian Journal of Atmospheric Environment, 2014 In this study, long-term rainfall data with irregular spatial distribution in Seoul, Korea, were separated into individual precipitation events by the Inter-event time definition of 6 hours. Precipitation washout of PM10 and NO2 concentrations in the air
Suhyang Kim +5 more
doaj +1 more source
Advanced Materials, EarlyView.Micropollutants can act as molecular triggers that activate a newly designed and chemically inert Fenton‐like PKU‐24 catalyst for on‐demand singlet oxygen generation from peroxymonosulfate (PMS), enabling nearly complete peroxide utilization and selective micropollutant removal from complex real‐world wastewater.
Yu‐Hang Li +7 more
wiley +1 more source
Exposure to NO2 in occupational built environments in urban centre in Lahore [PDF]
, 2015 Increased economic growth, urbanisation and substantial rise in automobile vehicles has contributed towards the elevated levels of air pollution in major cities in Pakistan.
Afzal, F. +8 more
core
Global deposition of total reactive nitrogen oxides from 1996 to 2014 constrained with satellite observations of NO2 columns [PDF]
, 2017 Reactive nitrogen oxides (NOy) are a major constituent of the nitrogen deposited from the atmosphere, but observational constraints on their deposition are limited by poor or nonexistent measurement coverage in many parts of the world.
Geddes, Jeffrey A., Martin, Randall V.
core +1 more source
Advanced Materials, EarlyView.Defect engineering of ultrathin RuCu alloy nanostructures has been successfully achieved to enhance ammonia electrosynthesis under indutrial‐level current density. Simultaneously, the stable ampere‐level operation of nitrate electroreduction on defective RuCu nanostructures can drive seawater desalination at an ultrafast salt removal rate, offering an ...
Juan Wang +15 more
wiley +1 more source
AE and DE mass spectrometer observations relevant to the shuttle glow [PDF]
Recent work suggested that NO2 may be responsible for the observed continuum glow near surfaces of the space shuttle. The observations of atomic nitrogen (N) are reported at shuttle altitudes using mass spectrometers, giving special attention to the ...
Engebretson, M. J.
core +1 more source
Ameliorating Effect of Chloride on Nitrite Toxicity to Freshwater Invertebrates with Different Physiology: a Comparative Study Between Amphipods and Planarians [PDF]
, 2008 High nitrite concentrations in freshwater ecosystems may cause toxicity to aquatic animals. These living organisms can take nitrite up from water through their chloride cells, subsequently suffering oxidation of their respiratory pigments (hemoglobin ...
Alonso, A., Camargo, J.A.
core +2 more sources
Advanced Materials, EarlyView.Catalyst coordination acts as a loaded dice biasing reaction selectivity. Single‐atom site catalysts lock intermediates in exposed configurations, enabling continued hydrogenation and favoring oxygen‐retaining products. In contrast, extended metal surfaces fully coordinate and shield reactive centers, promoting deoxygenation pathways. This work reveals
Chengyi Zhang, Ziyun Wang
wiley +1 more source
Investigation of hydrogen-air ignition sensitized by nitric oxide and by nitrogen dioxide [PDF]
The sensitization of stoichiometric hydrogen-air ignition by NO, NO2 and a mixture of NO and NO2 was investigated behind reflected shock waves in a shock tube. Induction times were measured in pressure range 0.27 to 2.0 atm, temperature range 800 to 1500
Grillo, A., Slack, M.
core +1 more source