Performance of Home-Scale Incinerator in Releasing NOx and Hydrocarbon Gaseous

2014 ◽  
Vol 695 ◽  
pp. 357-360
Author(s):  
M.M. Taha ◽  
Nona Merry M. Mitan ◽  
Juffrizal Karjanto ◽  
M.Y. Nidzamuddin
Keyword(s):  
Air Quality ◽  
Ambient Air ◽  
Ambient Air Quality ◽  
Kitchen Waste ◽  
Gas Emission ◽  
Safety Level ◽  
Yard Waste ◽  
Quality Guidelines ◽  
Disposable Diapers ◽  
Air Quality Guidelines

Treatment of municipal solid waste has been performed by home-scale incinerator (HSI) to identify the gas emission formation and to evaluate the safety level of gases from home scale incinerator (HSI). Incineration of kitchen waste, disposable diapers and yard waste were performed with 1.5 kg for different time of combustion and observed every 5 minutes. These three wastes emitted at different value of NOx due to the composition of waste. The highest value of NOx obtained from kitchen waste was 23 ppm after 25 minutes, disposable diapers was 40 ppm after 20 minutes and yard waste was 56 ppm after 15 minutes. According to Malaysian Ambient Air Quality Guidelines, the emitted NOx gas from HSI meet the requirement while HC did not meet the requirement.

scholarly journals A Systematic Review of Air Quality Sensors, Guidelines, and Measurement Studies for Indoor Air Quality Management

2020 ◽  
Vol 12 (21) ◽  
pp. 9045 ◽  
Author(s):  
He Zhang ◽  
Ravi Srinivasan
Keyword(s):  
Air Quality ◽  
Indoor Air ◽  
Occupational Safety ◽  
Ambient Air ◽  
Ambient Air Quality ◽  
Quality Guidelines ◽  
Safety And Health ◽  
Guidelines And Standards ◽  
Air Quality Guidelines ◽  
Ambient Air Quality Standards

The existence of indoor air pollutants—such as ozone, carbon monoxide, carbon dioxide, sulfur dioxide, nitrogen dioxide, particulate matter, and total volatile organic compounds—is evidently a critical issue for human health. Over the past decade, various international agencies have continually refined and updated the quantitative air quality guidelines and standards in order to meet the requirements for indoor air quality management. This paper first provides a systematic review of the existing air quality guidelines and standards implemented by different agencies, which include the Ambient Air Quality Standards (NAAQS); the World Health Organization (WHO); the Occupational Safety and Health Administration (OSHA); the American Conference of Governmental Industrial Hygienists (ACGIH); the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE); the National Institute for Occupational Safety and Health (NIOSH); and the California ambient air quality standards (CAAQS). It then adds to this by providing a state-of-art review of the existing low-cost air quality sensor (LCAQS) technologies, and analyzes the corresponding specifications, such as the typical detection range, measurement tolerance or repeatability, data resolution, response time, supply current, and market price. Finally, it briefly reviews a sequence (array) of field measurement studies, which focuses on the technical measurement characteristics and their data analysis approaches.

scholarly journals Opinion: Insights into updating Ambient Air Quality Directive (2008/50EC)

2021 ◽  
Author(s):  
Joel Kuula ◽  
Hilkka Timonen ◽  
Jarkko V. Niemi ◽  
Hanna Manninen ◽  
Topi Rönkkö ◽  
...  
Keyword(s):  
Air Pollution ◽  
Air Quality ◽  
Management Strategies ◽  
Ambient Air ◽  
World Health ◽  
Ambient Air Quality ◽  
Adverse Health Effects ◽  
Quality Guidelines ◽  
Health Organization ◽  
Air Quality Guidelines

Abstract. As the evidence for the adverse health effects of air pollution continues to increase, World Health Organization (WHO) recently published its latest edition of the Global Air Quality Guidelines. Although not legally binding, the guidelines aim to provide a framework in which policymakers can combat air pollution by formulating evidence-based air quality management strategies. In the light of this, European Union has stated its intent to revise the current Ambient Air Quality Directive (2008/50/EC) to resemble closer to that of the newly published WHO guidelines. This article provides an informed opinion on selected features of the air quality directive that we believe would benefit from a reassessment. The selected features include discussion about 1) air quality sensors as a part of hierarchical observation network, 2) number of minimum sampling points and their siting criteria, and 3) new target air pollution parameters for future consideration.

A Simple Tiered Methodology for the Determination of Ambient Air Quality Guidelines

2016 ◽  
Vol 44 (5) ◽  
pp. 464-473 ◽  
Author(s):  
Catherine Pirard ◽  
Jean-Marc Brouhon ◽  
Annick Fourmeaux ◽  
Corinne Charlier
Keyword(s):  
Air Quality ◽  
Ambient Air ◽  
Ambient Air Quality ◽  
Quality Guidelines ◽  
Air Quality Guidelines

Application of the WHO air quality guidelines to address ambient air pollution exposures in India: The need to address outdoor and household sources

2013 ◽  
Vol 2013 (1) ◽  
pp. 5790
Author(s):  
Kalpana Balakrishnan ◽  
Suresh Dhaniyala ◽  
Santu Ghosh ◽  
Sankar Sambandam ◽  
Krishnendu Mukhopadhyay ◽  
...  
Keyword(s):  
Air Pollution ◽  
Air Quality ◽  
Ambient Air ◽  
Ambient Air Pollution ◽  
Quality Guidelines ◽  
Air Quality Guidelines

scholarly journals Particulate matter study at residential and educational areas in Shah Alam, Malaysia

2018 ◽  
Vol 250 ◽  
pp. 06010
Author(s):  
Azyan Zafyrah Mohd Zahid ◽  
Nurul Najra Amizah Abdul Malik ◽  
Jalina Kassim
Keyword(s):  
Particulate Matter ◽  
Air Quality ◽  
Wind Speed ◽  
Ambient Air ◽  
Residential Areas ◽  
Quality Guidelines ◽  
Heavy Medium ◽  
Air Quality Guidelines ◽  
Quality Indexes

Air pollution has become a crucial problem nowadays, especially on particulate matter. Major sources of particulate matter came from transportation, while wind speed, temperature and other factors can contribute to this problem. This research focuses on the determination of levels of particulate matter at residential and educational areas in Shah Alam. Two (2) sites were chosen, namely Flat Nilam Sari that represented the residential areas while University of Selangor represented the educational areas. Four (4) sets of levels of particulate matter and other parameters (traffic volume, temperature and wind speed) were obtained by using Dylos DC1700 Laser Particle Counters and Mini Thermo-Anemometer respectively. The results obtained showed that the particulate matters (PM2.5 and PM10) at both study areas are below permissible limits required by Malaysian Ambient Air Quality Guidelines (MAAQS). However, the Air Quality Indexes of PM2.5 at both study areas shows that the AQI readings are categorized as unhealthy. The highest AQI reading was 159, which was recorded at residential area. In most cases, the results revealed that particulate matter produced by traffic vehicles has significant correlation with the increase of travelled particles. From the correlation analysis, both study areas have significant correlation of PM2.5 with medium vehicles while the educational area has correlation with all types of heavy, medium and small vehicles.

scholarly journals Investigating The Temporal Variation in the Frequency of Smog Precursors in the Ambient Air of Lahore

2021 ◽  
Author(s):  
Rabia - Shehzadi ◽  
Tahira Aziz Mughal ◽  
Moneeza Abbas ◽  
Amina Abrar ◽  
Ali Abbas
Keyword(s):  
Statistical Analysis ◽  
Air Quality ◽  
Wind Speed ◽  
Negative Correlation ◽  
Ambient Air ◽  
Air Pressure ◽  
Data Set ◽  
High Positive Correlation ◽  
Quality Guidelines ◽  
Air Quality Guidelines

Abstract In present study the seasonal prevalence of smog precursors was analysed to investigate the temporal trend of smog formation in the ambient air of Lahore. Data set of three years (November 2017- April 2020) was obtained from compact ambient air quality monitoring station, installed by Environmental Protection Department on Jail Road, Lahore. Statistical analysis of dataset of smog precursors revealed that in winter, the concentration range of PM10, PM2.5, NO, NO2 was significantly higher than Punjab Environmental Quality Standards and WHO Air Quality Guidelines. Whereas in summer, tropospheric ozone recurrence was higher and showed significantly negative correlation with NO >PM2.5 >NO2 >SO2 and null association with PM10. Seasonal impact on smog precursors concentration was further approved by correlation analysis of weather component with air pollutants. According to statistical analysis, Ozone (O3) was found to have high positive correlation with temperature >wind speed >relative humidity >sunshine hour while inverse relation with air pressure while NO, NO2, SO2, PM2.5 showed positive corelation with air pressure and negative correlation with temperature, sunshine, and wind speed. These factual figures revealed that ambient air of Lahore has been experiencing reducive-type smog in winter which is acidic in nature and oxidative-type photochemical smog in summer since 2017.

An indoor air quality and thermal comfort appraisal in a retrofitted university building via low-cost smart sensor

2021 ◽  
pp. 1420326X2110157
Author(s):  
Loubna Qabbal ◽  
Zohir Younsi ◽  
Hassane Naji
Keyword(s):  
Air Quality ◽  
Indoor Air Quality ◽  
Air Temperature ◽  
Indoor Air ◽  
Low Cost ◽  
Ambient Air ◽  
Atmospheric Pollutants ◽  
Smart Sensor ◽  
Quality Guidelines ◽  
Air Quality Guidelines

Occupant health can be strongly influenced by indoor air quality due to time spent indoors (90%). Such quality can be impacted by indoor atmospheric pollutants present. Therefore, demand-controlled ventilation can be a key to improving indoor air quality. The main aim herein is to scrutinize measurement results of several air pollutants possibly existing inside university building including CO2, volatile organic compounds, formaldehyde, benzene, CO, PM2.5 during three measurement campaigns (March 2017, May 2017 and October–November 2017) via a smart sensor specially developed. Likewise, some factors to assess comfort such as relative humidity and ambient air temperature were examined. CO2 were found to be higher during periods of occupancy with concentrations exceeding 2000 ppm during the first campaign. As a result, the occupants felt uncomfortable. Analysis of the survey results regarding the indoor air temperature showed that 80% of occupants found the temperature during school periods to be uncomfortable. In addition, the ‘ICONE’ air containment index was extremely high, indicating that the deemed class was confined during occupancy. The outcomes will be useful for the development of future indoor air quality guidelines, ventilation design and occupant satisfaction in buildings.

scholarly journals Effect of PM2.5 Levels on Respiratory Pediatric ED Visits in a Semi-Urban Greek Peninsula

2021 ◽  
Vol 18 (12) ◽  
pp. 6384
Author(s):  
Nikolaos Kanellopoulos ◽  
Ioannis Pantazopoulos ◽  
Maria Mermiri ◽  
Georgios Mavrovounis ◽  
Georgios Kalantzis ◽  
...  
Keyword(s):  
Air Pollution ◽  
Air Quality ◽  
Respiratory Diseases ◽  
Ambient Air ◽  
Ambient Air Pollution ◽  
World Health ◽  
Quality Guidelines ◽  
Ed Visits ◽  
The Mean ◽  
Air Quality Guidelines

Ambient air pollution accounts for an estimated 4.2 million deaths worldwide. Particulate matter (PM)2.5 particles are believed to be the most harmful, as when inhaled they can penetrate deep into the lungs. The aim of this study was to examine the relationship between PM2.5 daily air concentrations and pediatric emergency department (ED) visits for respiratory diseases in a Greek suburban area. All pediatric ED visits for asthma-, pneumonia- and upper respiratory infection (URI)-related complaints were recorded during the one-year period. The 24-h PM2.5 air pollution data were prospectively collected from twelve fully automated air quality monitoring stations. The mean annual concentration of PM2.5 was 30.03μg/m3 (World Health Organization (WHO) Air Quality Guidelines (AQG) Annual mean concentration: 10 μg/m3). PM2.5 levels rose above the WHO Air Quality Guidelines (AQG) 24-h concentrations (25 μg/m3)), 178 times (48.6% of the study period). When PM2.5 levels were above the daily limit, an increase of 32.44% (p < 0.001) was observed in daily pediatric ED visits for respiratory diseases and the increase was much higher during spring (21.19%, p = 0.018). A 32% (p < 0.001) increase was observed in URI-related visits, when PM2.5 levels were ≥ 25 μg/m3, compared to the mean daily visits when PM2.5 levels were < 25 μg/m3. Air pollution levels were associated with increased pediatric ED visits for respiratory-related diseases.

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