scholarly journals Assessment of the Relationship between Dependency Scores and Carbon Monoxide Levels in Expiratory Air of Smokers

2017 ◽  
Vol 2 (3) ◽  
pp. 12-15
Author(s):  
Cemil Işık Sönmez ◽  
Tuğba Aktaş ◽  
Usame Velioğlu ◽  
Duygu Ayhan Başer
Keyword(s):  
Carbon Monoxide ◽  
The Relationship ◽  
Expiratory Air

scholarly journals The clinical effect of smoking and environmental factors in spontaneous pneumothorax: a case-crossover study in an Inland province

2020 ◽  
Vol 14 ◽  
pp. 175346662097740
Author(s):  
Dohun Kim ◽  
Sang-Yong Eom ◽  
Chang-Seob Shin ◽  
Yong-Dae Kim ◽  
Si-Wook Kim ◽  
...  
Keyword(s):  
Carbon Monoxide ◽  
Relative Humidity ◽  
Air Pollutants ◽  
Spontaneous Pneumothorax ◽  
Conditional Logistic Regression ◽  
Air Pressure ◽  
Case Crossover ◽  
Matched Data ◽  
Stratified Analysis ◽  
The Relationship

Background: The factors that trigger spontaneous pneumothorax have not been sufficiently evaluated. The purpose of this study is to analyze the relationship between the development of spontaneous pneumothorax and meteorological parameters, including air pollutants. Methods: This is a retrospective study using the medical records of 379 patients who were admitted for spontaneous pneumothorax (SP) over a period of 4 years. Meteorological and air pollution data were obtained from the National Meteorological Office and the Ministry of Environment. We employed a case-crossover design to evaluate the short-term association between SP and meteorological factors including air pollutants. Conditional logistic regression was used to analyze bi-directional matched data. Results: Increase of relative humidity (RH) and of carbon monoxide (CO) were associated with the risk of pneumothorax, with odds ratio (OR) for RH = 1.18 (1.02–1.36), CO = 1.23 (1.02–1.48). Moreover, as air pressure (AP) decreased, risk of pneumothorax increased, with OR = 1.30 (1.05–1.59) but others did not. In the stratified analysis, the effect of RH was positive in ex-smokers (OR = 3.31) and non-smokers (OR = 1.32), but negative in current smokers (OR = 0.72). The effect of AP was significant in younger patients (OR = 1.33), males (OR = 1.40), and non-smokers (OR = 1.36). CO was related only with non-smokers (OR = 1.35) Conclusion: The triggering factors for spontaneous pneumothorax were relative humidity, carbon monoxide, and air pressure. The effect of the trigger was prominent in patients who were younger (<45 years), non- or ex-smokers, and male. The reviews of this paper are available via the supplemental material section.

Relating Vehicle Emission Regulations to Air Quality

1988 ◽  
Vol 202 (4) ◽  
pp. 235-242
Author(s):  
M L Williams
Keyword(s):  
Carbon Monoxide ◽  
Air Quality ◽  
Motor Vehicles ◽  
Vehicle Emission ◽  
Gaseous Pollutants ◽  
Oxides Of Nitrogen ◽  
Emission Regulations ◽  
European Regulations ◽  
Emission Limits ◽  
The Relationship

The European regulations governing the emissions of gaseous pollutants from gasoline-engined motor vehicles is reviewed and discussed, including the so-called ‘Luxembourg Agreement’. The relationship between the regulation emission limits and those measured in practice from ‘as-received’ vehicles in use is also discussed. Having discussed the relationship between regulations and emissions, the further relationships between vehicle emissions and air quality are also discussed, giving particular attention to carbon monoxide, oxides of nitrogen and lead.

scholarly journals Levels of Carbon Monoxide Expiratory Air on Shisha Users and the Factors Affecting

2019 ◽  
Vol 39 (1) ◽  
pp. 37-43
Author(s):  
Mirsyam Ratri Wiratmoko ◽  
Chandrika Karis Adhalia
Keyword(s):  
Carbon Monoxide ◽  
Odds Ratio ◽  
P Value ◽  
Design Data ◽  
Cross Sectional ◽  
Factors Affecting ◽  
Cross Sectional Design ◽  
Expiratory Air

Background: Shisha is one method of consuming tobacco similar to cigarette but in a different form. Lately it became a trend in Indonesian people, especially teenagers, without knowing any hazards contained in shisha which could cause cancer or even death. Lack of study about shisha in Indonesia was the main reason to do this study so further impact of shisha could be understood. Methodology: This study was analytical observational with cross sectional design. Data of this study was obtained from examination using CO analyzer and from questionnaire filling by respondents from the shisha Bogor community and smokers in Bogor. Results: Among 60 samples we obtained mean expiratory air CO levels of 8,62 ppm for smokers and 20,67 ppm for shisha users. There were also a significant correlation between shisha consumption duration per times and CO expiratory air levels, with P-value of 0,004 and odds ratio 12,52. Conclusion: Expiratory air CO levels in shisha users were higher than smokers, also there were a significant correlation between shisha consumption duration per times and the increasing levels of expiratory air CO. (J Respir Indo 2019; 39(1))

scholarly journals Optimization of the Cremator Settings for the Disposal of Poultry Waste By Incineration in a Beet-emitting Boiler

2020 ◽  
Author(s):  
Victor Konovalov ◽  
Anna Konovalova ◽  
Vladimir Konovalov ◽  
Sergey Denisov ◽  
Gali Gumarov
Keyword(s):  
Carbon Monoxide ◽  
Moisture Content ◽  
Regression Models ◽  
Initial Moisture Content ◽  
Ash Content ◽  
Chicken Manure ◽  
The Relationship ◽  
Heat Released ◽  
Carbon Monoxide Content ◽  
Continental Climate

The purpose of this work is to substantiate the parameters of the boiler unit, which ensures the cremation of manure using microwave radiation. The substantiation of the amount of heat released during the burning of chicken manure at the industrial keeping of poultry in the conditions of sharply continental climate on the basis of minimization of product utilization values - ash content of wastes and pollution of smoke emissions is presented. Using the obtained regression models of magnetron emission power, moisture content of the burnt manure mass, mass air consumption for the specified product utilization parameters, the analysis of the relationship between the obtained parameters is made. Correlation analysis has shown a high correlation between the amount of heat released during the combustion of manure and the concentration of carbon monoxide in the smoke emissions. Rationally, the value of carbon monoxide content in the flue gases is 3.9%, corresponding to the amount of heat released 2.1 MJ/kg at the combustion of a kilogram of manure at the ash content of the residue of 18.4% and the initial moisture content of the manure of 38.4%. It provides power of radiation of magnetron 400 W on 1 kg of a waste and the mass flow rate of air of 13.8 kg/h.

Study on the Relationship between Total Hydrocarbon and Gases Dissolved in Transformer Oil

2014 ◽  
Vol 556-562 ◽  
pp. 502-506
Author(s):  
Yi Chen ◽  
Bin Song
Keyword(s):  
Carbon Monoxide ◽  
Correlation Coefficient ◽  
Pearson Correlation ◽  
Gas Analysis ◽  
Transformer Oil ◽  
Pearson Correlation Coefficient ◽  
Dissolved Gas ◽  
Total Hydrocarbon ◽  
The Relationship

Dissolved gas analysis (DGA) in transformer oil is considered as one of the preferred projects to discover the potential faults of the transformer. To identify the aging characteristics of oil-immersed transformer oil in long-term operations, it is important to study relationship between total hydrocarbon and gases dissolved in transformer oil. This paper used Pearson correlation coefficient to analyze the relationship with the data of DGA. At last, it gives the result that the correlations between the total hydrocarbon and carbon monoxide, methane, ethane, ethylene, acetylene was positive. Therefore, this study lays the foundation which help to diagnose the aging status of transformer.

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