scholarly journals Hubungan Konsetrasi NO2 Udara Ambien Terhadap Konsentrasi NO2 Udara Dalam Ruang Di Lampu Merah Simpang Jelutung Kota Jambi

2018 ◽  
Vol 1 (1) ◽  
pp. 1
Author(s):  
Peppy Herawati ◽  
Anggrika Riyanti ◽  
Ageng Pratiwi
Keyword(s):  
Public Health ◽  
Air Quality ◽  
Indoor Air ◽  
Pearson Correlation ◽  
Ambient Air ◽  
Quality Standard ◽  
Motor Vehicles ◽  
Major Influence ◽  
Correlation Relationship ◽  
The Relationship

ABSTRACTTtransportation is one of the factors that have a major influence in air quality decline. Air pollution is not only happening outside the room and will mobilization activities of motor vehicles, but it can affect air quality in space. One of the pollutant gas produced from vehicles is the concentration of Nitrogen Dioxide (NO2). This allows an exposure that will impact on public health. The purpose of this study is to determine the relationship of NO2 air ambient concentration (outdoor) to indoor air (indoor) in Simpang Jelutung Red Lights area. The method used in this study is quantitatif method. Data collection using sampling NO2 concentration in outdoor and indoor. The relationship between outdoor and indoor NO2 concentrations was analyzed using Pearson correlation. This is in line with the small influence of air NO2 concentration in space on public health. Result shows that all of the sample is still categorized either or not passing the air quality standard (150 μg / m3) in Government Regulation Number 41 Year 1999. The correlation analysis result  show relationship NO2 concentration between ambient air (outdoor) to indoor air was 13%, which means that correlation relationship is very weak.  Keywords:     Ambient air, indoor air, NO2 concentration

scholarly journals Pengaruh Konsentrasi NO2 Udara Ambien pada Daerah Padat Kendaraan Terhadap Konsentrasi NO2 Udara Dalam Ruang (Studi Kasus di Kawasan Simpang Pulai Kota Jambi)

2018 ◽  
Vol 1 (2) ◽  
pp. 60
Author(s):  
Anggrika Riyanti ◽  
Peppy Herawati ◽  
Nyimas Hazana Pajriani
Keyword(s):  
Air Pollution ◽  
Indoor Air ◽  
Government Regulation ◽  
Indoor Air Pollution ◽  
Pearson Correlation ◽  
Ambient Air ◽  
Quality Standard ◽  
Ambient Air Pollution ◽  
Air Pollution Control ◽  
The Relationship

Transportation sector has a very big influence in air pollution. Increase the number of vehicles will caused higher air pollution, such as NO2. The increase in ambient air pollution is feared to have an impact on indoor air pollution. This study purposed is to determine the relationship between  NO2 concentration in ambient to indoor air.  This study used kuantitatif methods with purposive sampling for one month in Simpang Pulai Jambi City.  The relationship between NO2 concentration of ambient air and indoor air was analyzed using simple pearson correlation. The result showed that there was no significant relationship between NO2 concentration in ambient to indoor air with correlation value (r) is 0,437.  The highest NO2 concentration found on the third week in ambient 109,139 µg/m3and indoor air 70,133 µg/m3.  From analysis in one month showed that NO2 concentration in Simpang Kawat Jambi City still meet the air quality standard (150 μg / m3) in Government Regulation Number 41 Year 1999 about Air Pollution Control.

scholarly journals Spatio-temporal of surface ozone (O3) variations at urban and suburban sites in Sarawak region of Malaysia

2021 ◽  
Vol 880 (1) ◽  
pp. 012004
Author(s):  
H Mahidin ◽  
M T Latif ◽  
A Hamdan ◽  
J Salleh ◽  
D Dominick ◽  
...  
Keyword(s):  
Air Quality ◽  
Surface Ozone ◽  
Ambient Air ◽  
Quality Standard ◽  
Transportation Systems ◽  
Pollutant Emissions ◽  
Daily Maximum ◽  
Spatio Temporal ◽  
Ambient Air Quality Standard ◽  
The Relationship

Abstract Sarawak Region of Malaysia is currently experiencing a high demand for capital needs such as transformation forest to plantations, economic development, and improving transportation systems. Those land cover changes will increase primary pollutant emissions and trigger surface O3 formation. Surface O3 is a secondary pollutant and a significant greenhouse gas contributing to climate change and declining air quality. In this study, variations in surface O3 concentrations at urban and suburban sites in Sarawak were explored using the Malaysian Department of Environment data spanning a two-year cycle (2018-2019). The primary aim of this study is to ascertain the variation of surface O3 concentrations reported at four monitoring stations in Sarawak, namely Kuching (SQ1) (Urban), Sibu (SQ2) (Suburban), Bintulu (SQ3) (Suburban), and Miri (SQ4) (Suburban). The study also analysed the relationship between O3 distribution and nitrogen oxides (NO and NO2). The findings showed that O3 concentrations observed in the region during the study period were lower than the maximum permissible value of 100 ppbv suggested by the Malaysian Ambient Air Quality Standard (2020). SQ4 (Miri) at suburban sites recorded the highest average surface O3 concentrations with an hourly average and daily maximum O3 concentration of 15.7 and 89.5 ppbv, respectively. Temperatures, UV exposure, and wind speed all impact the concentration of surface O3 in Sarawak. In all stations, concentrations of O3 were inversely linked with NO, NO2, and relative humidity (RH). This research will assist the relevant agency in forecast, monitor, and mitigate the level of O3 in the ambient environment, especially in the Sarawak Region.

scholarly journals Addition of PM2.5into the National Ambient Air Quality Standards of China and the Contribution to Air Pollution Control: The Case Study of Wuhan, China

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Mingqing You
Keyword(s):  
Air Quality ◽  
Local Governments ◽  
Southern China ◽  
Ambient Air ◽  
Quality Standard ◽  
Mean Value ◽  
Motor Vehicles ◽  
Air Pollution Control ◽  
Ambient Air Quality ◽  
Average Value

PM2.5has gradually become a major environmental problem of China with its rapid economic development, urbanization, and increasing of motor vehicles. Findings and awareness of serious PM2.5pollution make the PM2.5a new criterion pollutant of the Chinese National Ambient Air Quality Standard (NAAQS) revised in 2012. The 2012 NAAQS sets the PM2.5concentrate limitation with the 24-hour average value and the annual mean value. Wuhan is quite typical among central and southern China in climate, economy, development level, and energy consumption. The data are cited from the official website of Wuhan Environmental Protection Bureau and cover the period from 1 January to 30 June 2013. The data definitely confirm the existence of serious PM2.5pollution in Wuhan and indicate that the addition of PM2.5as a criterion pollutant significantly brings down the attainment rate of air quality. The example of Wuhan reveals that local governments should take measures to reduce the emission of PM2.5if it affects the attainment rate and the performance evaluation value of air quality. The main contribution of 2012 NAAQS is that it brings down the attainment rate of the air quality and forces local governmental officials to take the measures accordingly.

scholarly journals Forensic Engineering Of Indoor Air Quality

2006 ◽  
Vol 23 (1) ◽  
Author(s):  
Drew Peake
Keyword(s):  
Risk Assessment ◽  
Particulate Matter ◽  
Air Quality ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
Fine Particulate Matter ◽  
Ambient Air ◽  
Quality Standard ◽  
Hazard Evaluation ◽  
Forensic Engineering

Forensic Engineering Of Indoor Air Quality Is Both An Art And A Science. While There Are Several Standards, Guidelines, And Experienced Based Judgments, Some Are Contradictory. This Paper Discusses A Risk Assessment Approach That Considers Hazard Evaluation, Dose-Response Assessment, Exposure Assessment, And Risk Characterization. Hazard Evaluation, In Some Cases, Depends Upon Evaluation According To Physical Or Chemical Characteristics. For Example, Mold Spores Are Considered Fine Particulate Matter For Evaluation Against The National Ambient Air Quality Standard For Particulate Matter. Simple Exposure To A Contaminant Is Not Sufficient To Provoke A Response; Demonstrating A Reasonable Expectation Of A Linked Response Is Necessary. Time And Route Of Exposure Are Other Factors That Must Be Demonstrated. These Factors Are Combined In A Risk Assessment To Describe The Probability Of A Link Between Cause And Effect. Three Cases Are Presented Where These Elements Were Established Sufficiently To Persuade Judicial Decisions.

scholarly journals Field Study of Metal Oxide Semiconductor Gas Sensors in Temperature Cycled Operation for Selective VOC Monitoring in Indoor Air

Atmosphere ◽  
2021 ◽  
Vol 12 (5) ◽  
pp. 647
Author(s):  
Tobias Baur ◽  
Johannes Amann ◽  
Caroline Schultealbert ◽  
Andreas Schütze
Keyword(s):  
Air Quality ◽  
Metal Oxide ◽  
Gas Sensor ◽  
Gas Sensors ◽  
Indoor Air ◽  
Ambient Air ◽  
Quantitative Agreement ◽  
Metal Oxide Semiconductor ◽  
Oxide Semiconductor ◽  
High Temporal Resolution

More and more metal oxide semiconductor (MOS) gas sensors with digital interfaces are entering the market for indoor air quality (IAQ) monitoring. These sensors are intended to measure volatile organic compounds (VOCs) in indoor air, an important air quality factor. However, their standard operating mode often does not make full use of their true capabilities. More sophisticated operation modes, extensive calibration and advanced data evaluation can significantly improve VOC measurements and, furthermore, achieve selective measurements of single gases or at least types of VOCs. This study provides an overview of the potential and limits of MOS gas sensors for IAQ monitoring using temperature cycled operation (TCO), calibration with randomized exposure and data-based models trained with advanced machine learning. After lab calibration, a commercial digital gas sensor with four different gas-sensitive layers was tested in the field over several weeks. In addition to monitoring normal ambient air, release tests were performed with compounds that were included in the lab calibration, but also with additional VOCs. The tests were accompanied by different analytical systems (GC-MS with Tenax sampling, mobile GC-PID and GC-RCP). The results show quantitative agreement between analytical systems and the MOS gas sensor system. The study shows that MOS sensors are highly suitable for determining the overall VOC concentrations with high temporal resolution and, with some restrictions, also for selective measurements of individual components.

Connecticut's Dioxin Ambient Air Quality Standard

Risk Analysis ◽  
1990 ◽  
Vol 10 (4) ◽  
pp. 597-603 ◽  
Author(s):  
Hari V. Rao ◽  
David R. Brown
Keyword(s):  
Air Quality ◽  
Ambient Air ◽  
Quality Standard ◽  
Ambient Air Quality ◽  
Ambient Air Quality Standard
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