Redundant Calibration of Nitric Oxide, Carbon Monoxide, Nitrogen Dioxide, and Ozone Air Pollution Monitors by Chemical and Gravimetric Techniques

2009 ◽  
pp. 337-337-8 ◽  
Author(s):  
DH Stedman ◽  
G Kok ◽  
R Delumyea ◽  
HH Alvord
Keyword(s):  
Nitric Oxide ◽  
Air Pollution ◽  
Carbon Monoxide ◽  
Nitrogen Dioxide

Environmental and Hygienic Assessment of Ambient Air Pollution in Oil-Producing and Oil-Refining Areas of the Republic of Bashkortostan and Population Health Status

2020 ◽  
pp. 26-32
Author(s):  
Z.B. Baktybaeva ◽  
R.A. Suleymanov ◽  
T.K. Valeev ◽  
N.R. Rahmatullin ◽  
E.G. Stepanov ◽  
...  
Keyword(s):  
Air Pollution ◽  
Carbon Monoxide ◽  
Health Status ◽  
Nitrogen Dioxide ◽  
Population Health ◽  
Respiratory Diseases ◽  
Ambient Air ◽  
Oil Refining ◽  
Disease Rates ◽  
Total Suspended Particles

Introduction. High density of oil-producing and refining facilities in certain areas of Bashkortostan significantly affects the environment including ambient air quality in residential areas. Materials and methods. We analyzed concentrations of airborne toxicants (sulfur and nitrogen oxides, nitrogen and carbon oxides, hydrogen sulfide, ammonia, xylenes, toluene, phenol and total suspended particles) and population health status in the cities of Ufa, Sterlitamak, Salavat, Blagoveshchensk, and the Tuymazinsky District in 2007–2016. Pearson's correlation coefficients (r) were used to establish possible relationships between medico-demographic indicators and air pollution. Results. Republican fuel and energy enterprises contributed the most to local air pollution levels. Gross emissions from such enterprises as Bashneft-Ufaneftekhim and Bashneft-Navoil reached 43.69–49.77 thousand tons of pollutants per year. The levels of some air pollutants exceeded their maximum permissible concentrations. Elevated concentrations of ammonia, total suspended particles, nitrogen dioxide, and carbon monoxide were registered most frequently. High rates of congenital abnormalities, respiratory diseases in infants (aged 0-1), general mortality and morbidity of the population were observed in some oil-producing and refining areas. The correlation analysis proved the relationship between the concentration of carbon monoxide and general disease rates in adults based on hospital admissions (r = 0.898), general incidence rates in children (r = 0.957), and blood disease rates in infants (r = 0.821). Respiratory diseases in children correlated with nitrogen dioxide emission levels (r = 0.899). Conclusions. Further development of oil-producing, petrochemical and oil-refining industries should be carried out taking into account socio-economic living conditions of the population.

scholarly journals GEOECOLOGICAL MAPPING OF THE PUROVSK AREA IN YAMAL-NENETS AUTONOMOUS REGION

2016 ◽  
pp. 120-125
Author(s):  
N. L. Mamaeva ◽  
S. A. Petrov
Keyword(s):  
Air Pollution ◽  
Carbon Monoxide ◽  
Urban Development ◽  
Nitrogen Dioxide ◽  
Maximum Permissible Concentration ◽  
Near Surface ◽  
Climate Conditions ◽  
Autonomous Region ◽  
Atmospheric Air ◽  
Nenets Autonomous

In the article there were calculated near-surface concentrations of pollutants in the atmospheric air of Purovsk area, Jamal-Nenets Autonomous region. The purpose was to compare these with the maximum permissible concentration. The geo-ecological maps of dispersion of substances emissions into the air were made up using the unified program for calculating the air pollution taking into account the technical characteristics of sources and emissions themselves, natural, especially climate, conditions, as well as protection urban development activities and the lay of land. The conclusions were made about the excess in the atmosphere of maximum permissible concentration of solids on carbon monoxide in Purovsk, and on nitrogen dioxide in Purovsk, as well as in Ust-Purovsk Tazovskaya Guba permafrost areas.

scholarly journals Pollution of the Territory of the Pribaikalsky National Park by Emissions from Forest Fires

2020 ◽  
Vol 20 (4) ◽  
pp. 240-249
Author(s):  
Svetlana A. Novikova ◽  
◽  
Irina V. Shcherbakova ◽  
Keyword(s):  
Air Pollution ◽  
Carbon Monoxide ◽  
Nitrogen Dioxide ◽  
Forest Fires ◽  
Atmospheric Pollution ◽  
National Park ◽  
Program Complex

The aim of the work is to assess the contribution of emissions from forest fires to air pollution using the example of the territory of the Pribaikalsky National park. To achieve this goal, calculations of gross emissions were carried out based on forestry data on fires. With the help of the program complex «Ecologist» calculations of concentrations of impurities emitted into the atmosphere during forest fires were carried out. Based on the results of the calculations, maps of the concentrations of pollutants released into the atmosphere from fires were created. The analysis of the received results obtained allowed us to conclude that the established sanitary and hygienic standards were exceeded. Among the considered list of emissions, the maximum concentrations of acrolein, carbon monoxide, acetone, and nitrogen dioxide were revealed. The areas located in the zone of increased atmospheric pollution created by fires on the territory of the forestries of the Pribaikalsky National park were identified.

PRELIMINARY STUDY OF PHOTOCHEMICAL BEHAVIOR IN THE SYSTEM NITROGEN DIOXIDE – ETHANE

1955 ◽  
Vol 33 (5) ◽  
pp. 843-848
Author(s):  
T. M. Rohr ◽  
W. Albert Noyes Jr.
Keyword(s):  
Nitric Oxide ◽  
Carbon Dioxide ◽  
Carbon Monoxide ◽  
Nitrogen Dioxide ◽  
Room Temperature ◽  
Reverse Reaction ◽  
Primary Process ◽  
Photochemical Behavior ◽  
Preliminary Study ◽  
Oxygen Atoms

The addition of ethane to nitrogen dioxide either during exposure to radiation transmitted by pyrex, or afterwards, reduces the amount of oxygen formed. At room temperature this is apparently due to the effectiveness of ethane in promoting the reverse reaction of nitric oxide and oxygen to form nitrogen dioxide. At temperatures over 100° there is a reaction which uses oxygen atoms produced in the primary process. Nitroethane (or nitrosoethane) is formed along with carbon monoxide, carbon dioxide, and some methane. The results suggest that acetaldehyde is an intermediate, but acetaldehyde could not be detected because it would react thermally with nitrogen dioxide. It is not possible to give a complete explanation of the results, but suggestions can be made which might form the basis for later work.

Conversion of nitrogen dioxide, nitric acid, and n-propyl nitrate to nitric oxide by a gold-catalyzed reduction with carbon monoxide

1983 ◽  
Vol 55 (12) ◽  
pp. 1980-1986 ◽  
Author(s):  
Mark J. Bollinger ◽  
Robert E. Sievers ◽  
David W. Fahey ◽  
Frederick C. Fehsenfeld
Keyword(s):  
Nitric Oxide ◽  
Carbon Monoxide ◽  
Nitric Acid ◽  
Nitrogen Dioxide

scholarly journals A study of the chemical quality of ambient air at selected intersections in the Durban Metropolis

2003 ◽  
Author(s):  
◽  
Shalini Singh
Keyword(s):  
Nitric Oxide ◽  
Air Pollution ◽  
Nitrogen Dioxide ◽  
Ambient Air ◽  
Urban Environments ◽  
Motor Vehicles ◽  
Chemical Quality ◽  
Oxides Of Nitrogen ◽  
Combustion Processes

Motor vehicles are considered a major source of air pollution in urban environments. Nitrogen dioxide (N02) and nitric oxide (NO) which are collectively referred to as oxides of nitrogen (NOx) are formed at high temperatures during combustion processes in the engines of motor vehicles and are emitted via the exhaust into the atmosphere. Nitrogen dioxide is regarded as an irritant of the respiratory system.

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