scholarly journals Analisis Risiko Non Karsinogenik Pajanan PM10 di Kawasan Komersial, Kota Jambi

2019 ◽  
Vol 4 (2) ◽  
Author(s):  
Rizki Andre Handika ◽  
Solikhati Indah Purwaningrum ◽  
Resti Ayu Lestari
Keyword(s):  
Risk Management ◽  
High Volume ◽  
Ambient Air ◽  
Average Concentration ◽  
Chemical Components ◽  
Public Health Activity ◽  
Air Sampler ◽  
Air Particulate ◽  
Commercial Area ◽  
Carcinogenic Metals

<p>PM <sup>10</sup> Pollutant is an air particulate that cannot be detected by a nose hair. It contains carcinogenic and non-carcinogenic chemical components. This study, therefore, aims to quantify the concentration of PM <sup>10</sup> and identify the risks of the non-carcinogenic type’s exposure to the public’s health in the commercial area of Pasar Jambi sub-district. Measurement of PM  concentration was performed on Sunday (weekend) and Monday (weekday) using high volume air sampler (HVAS). Furthermore, questionnaire and interviewing were implemented on 95 people amounting to 12% of the total population. The result shows that PM <sup>10</sup>  concentrations were observed to have exceeded ambient air quality standards of 196.9 µg/m3 on weekend and 2.094 µg/m3 weekday. Further- more, the average concentration of Al and Mn in PM <sup>10</sup>  were 1.69384 µg/m3 and 0.04191 µg/m3 respectively. Although the public health activity was already at the risk of PM10 non-carcinogenic exposure in the commercial district (i.e RQ &gt; 1), there has notbeen any environmental health risks for the non-carcinogenic metals (Al and Mn) to the society. Therefore, risk management is carried out to protect the population from PM risks. Risk management comprises calculating the safe concentration, duration, frequency, and time of exposure on these weekend and weekday</p>

scholarly journals The Study of PM10 Concentration and Trace Metal Content in Different Areas of Karachi, Pakistan

2017 ◽  
Vol 60 (1) ◽  
pp. 50-58
Author(s):  
Durdana Rais Hashmi ◽  
Akhtar Shareef ◽  
Farooq Ahmed Khan
Keyword(s):  
Particulate Matter ◽  
Trace Metals ◽  
Absorption Spectrometry ◽  
High Volume ◽  
Ambient Air ◽  
Average Concentration ◽  
Atmospheric Particulate Matter ◽  
Industrial Zone ◽  
Arithmetic Means ◽  
Air Sampler

Atmospheric particulate matter may exert serious health hazards because of its chemicalcharacteristics. Aim of this study was to determine the concentrations of particulate matter (PM) with anaerodynamic diameter <10 mm (PM10), and air transmitted particulate trace metals in different areas ofKarachi’s ambient air, for the period of 01 year viz. June 2011 to June 2012. Furthermore, the present workcompares the levels of particulate matter and trace metals with the proposed limiting values from the U.S.Environmental Protection Agency (65 mg/m3 for PM10). The sampling for PM10 was performed by usinga high volume air sampler. The PM10 levels were determined by gravimetry and the metals by graphitefurnace. Arithmetic means of 361.0 mg/m3 was determined for PM10 in commercial areas, 275.0 mg/m3 inresidential areas, 438.0 mg/m3 in industrial areas and 68.9 mg/m3 in background areas of Karachi. Tracemetal content in PM10, such as lead (Pb) and cadmium (Cd) were also analysed separately during the sameperiod using atomic absorption spectrometry. The average concentration of Pb were found in commercialzone 1.36 mg/m3, in residential zone 1.0 mg/m3, in industrial zone 1.46 mg/m3 and in urban backgroundzone 0.6 mg/m3, whereas; Cd concentration in commercial zone 0.10 µg/m3, in residential zone 0.02 µg/m3,in industrial zone 0.25 µg/m3 and in urban background zone 0.01 µg/m3, respectively.

Ambient Air Quality Monitoring Studies in Four Specific Location of Tamilnadu, India

2019 ◽  
pp. 677-683
Author(s):  
Mageshkumar P ◽  
Ramesh S ◽  
Angu Senthil K
Keyword(s):  
Air Quality ◽  
Quality Index ◽  
High Volume ◽  
Ambient Air ◽  
Quality Parameters ◽  
Air Quality Index ◽  
Gaseous Pollutants ◽  
Ambient Air Quality ◽  
Air Sampler

A comprehensive study on the air quality was carried out in four locations namely, Tiruchengode Bus Stand, K.S.R College Campus, Pallipalayam Bus Stop and Erode Government Hospital to assess the prevailing quality of air. Ambient air sampling was carried out in four locations using a high volume air sampler and the mass concentrations of PM10, PM2.5, SO2, NOX and CO were measured. The analyzed quality parameters were compared with the values suggested by National Ambient Air Quality Standards (NAAQS). Air quality index was also calculated for the gaseous pollutants and for Particulate Matters. It was found that PM10 concentration exceeds the threshold limits in all the measured locations. The higher vehicular density is one of the main reasons for the higher concentrations of these gaseous pollutants. The air quality index results show that the selected locations come under moderate air pollution.

scholarly journals Measurement of overall uptake coefficients for HO<sub>2</sub> radicals by aerosol particles sampled from ambient air at Mts. Tai and Mang (China)

2012 ◽  
Vol 12 (24) ◽  
pp. 11907-11916 ◽  
Author(s):  
F. Taketani ◽  
Y. Kanaya ◽  
P. Pochanart ◽  
Y. Liu ◽  
J. Li ◽  
...  
Keyword(s):  
Aerosol Particles ◽  
High Volume ◽  
Chemical Conversion ◽  
Ambient Air ◽  
Quartz Fiber ◽  
Flow Tube ◽  
Ambient Particles ◽  
Air Sampler ◽  
Quartz Fiber Filter ◽  
Uptake Coefficients

Abstract. HO2 uptake coefficients for ambient aerosol particles, collected on quartz fiber filter using a high-volume air sampler in China, were measured using an aerosol flow tube coupled with a chemical conversion/laser-induced fluorescence technique at 760 Torr and 298 K, with a relative humidity of 75%. Aerosol particles were regenerated with an atomizer using the water extracts from the aerosol particles. Over 10 samples, the measured HO2 uptake coefficients for the aerosol particles at the Mt. Tai site were ranged from 0.13 to 0.34, while those at the Mt. Mang site were in the range of 0.09–0.40. These values are generally larger than those previously reported for single-component particles, suggesting that reactions with the minor components such as metal ions and organics in the particle could contribute to the HO2 uptake. A box model calculation suggested that the heterogeneous loss of HO2 by ambient particles could significantly affect atmospheric HOx concentrations and chemistry.

scholarly journals NO2 Concentration in Banepa Valley, Nepal

1970 ◽  
Vol 4 (1) ◽  
pp. 1-11
Author(s):  
Ahmad Kamruzzaman Majumder ◽  
V Krishna Murthy ◽  
Sanjay Nath Khanal ◽  
Dhiraj Giri
Keyword(s):  
Air Quality ◽  
Winter Season ◽  
Maximum Level ◽  
Ambient Air ◽  
World Health ◽  
Quality Data ◽  
Residential Areas ◽  
Pollution Levels ◽  
Air Sampler ◽  
Commercial Area

This study comprised of air quality monitoring during the day time at three municipalities of Banepa, Dhulikhel and Panauti(Known as Banepa Valley) in Kavre district of Nepal. The study was conducted in order to establish a baseline air quality data for those municipalities as the first time ever in the district. In each of those municipalities three air monitoring stations were established representing predominant industrial, commercial and residential areas. Nitrogen Dioxide (NO2) had been estimated from air sampling programme which spanned 7 months and a total of 126 days reflecting winter, premonsoon and monsoon seasons. Low Volume Air (LVA) Sampler and Personal air sampler were used for sampling. UV spectrophotometer was used for estimation of the NO2. The study found that during winter season the concentration of NO2 was more and among the areas commercial area found to be highest level pollution. The over all mean, minimum and maximum level of NO2 was found to be 24.62μg/m3, 11.26μg/m3, 91.20μg/m3 in the Banepa valley. The seasonal trend in pollution levels show that winter > pre-monsoon > monsoon. The pollution concentration trend noted among the areas was commercial > industrial > residential on almost all the occasions. This finding conclude that, most of the time NO2 level are below the National Ambient Air Quality Standards (NAAQS) and World Health Organization (WHO) guideline representing little risk at present in Banepa Valley however commercial area of Banepa is more polluted and is associated with higher NO2 concentration compared to other areas. Keywords: NO2, Nepal, Banepa, air quality, personal air sampler DOI: 10.3126/kuset.v4i1.2878 Kathmandu University Journal of Science, Engineering and Technology Vol.4, No.1, September 2008, pp 1-11

scholarly journals Concentration of 7Be in surface air at Suva, Fiji

2003 ◽  
Vol 21 (1) ◽  
pp. 15 ◽  
Author(s):  
Sitaram Garimella ◽  
Kanayathu Koshy ◽  
Shusendra Singh
Keyword(s):  
Pacific Islands ◽  
Gamma Ray ◽  
High Volume ◽  
Average Concentration ◽  
Capital City ◽  
Long Range Transport ◽  
Gamma Ray Spectrometer ◽  
Air Sampler ◽  
Range Transport ◽  
The University

A high-volume air sampler and a high-resolution gamma-ray spectrometer have been used during the period 1999-2000 at the University of the South Pacific to measure the activity of 7Be in the surface air at Suva, the capital city of Fiji. The measurements indicate that the average concentration of 7Be in surface air is about 1.6 mBq m-3, which agrees closely with the corresponding values reported for other Pacific islands in the region. 7Be shows a significant correlation with nitrate in the atmosphere. This could imply long-range transport of anthropogenically-derived continental material to Fiji or the intrusion of nitrogen species from the stratosphere to surface air.

scholarly journals Potential noise annoyance from ambient air quality measurement using high volume air sampler (HVAS)

2021 ◽  
Vol 909 (1) ◽  
pp. 012003
Author(s):  
B Purwanto ◽  
Zulfachmi
Keyword(s):  
Flow Control ◽  
Power Level ◽  
High Volume ◽  
Ambient Air ◽  
Sound Power ◽  
Noise Mitigation ◽  
High Frequencies ◽  
Air Sampler ◽  
Noise Annoyance ◽  
Sound Power Level

Abstract One of the benchmarks in air pollution is the quality of ambient air consisting of gas and particulate matter. Measurement of particulates in ambient air can be done using a High-Volume Air Sampler (HVAS). However, in the measurement process it sometimes causes noise annoyance to the community where the measuring instrument is operated, considering that the operating time of the instrument is 24 consecutive hours. This research identifies the value of the sound power level emitted from the several types of HVAS to the surrounding environment. There are two types of HVAS measured in this study consisting of one unit of HVAS with analogue flow control made by Indonesian manufacturer and two units of HVAS with digital flow control made by Japan and United States of America manufacturers. Sound power level is determined using ISO 9614 method with a sound intensity analyzer as the main instrument. The sound power level data for each HVAS were than compared and frequency spectrum distributions are evaluated. Based on the research results, it was found that some sample units emitted sound power levels of more than 90 dBA with dominant noise being at high frequencies starting from 4000 Hz. The results of the research can be used as an early information in the development of the HVAS regarding noise mitigation, because there is different approach for controlling noise specifics in low, mid and high frequencies noise source.

scholarly journals Measurement of overall uptake coefficients for HO<sub>2</sub> radicals by aerosol particles sampled from ambient air at Mts. Tai and Mang, China

2012 ◽  
Vol 12 (6) ◽  
pp. 13787-13812 ◽  
Author(s):  
F. Taketani ◽  
Y. Kanaya ◽  
P. Pochanart ◽  
Y. Liu ◽  
J. Li ◽  
...  
Keyword(s):  
Aerosol Particles ◽  
High Volume ◽  
Chemical Conversion ◽  
Ambient Air ◽  
Fluorescence Technique ◽  
Minor Components ◽  
Flow Tube ◽  
Ambient Particles ◽  
Air Sampler ◽  
Uptake Coefficients

Abstract. HO2 uptake coefficients for ambient aerosol particles, collected on quartz filter using a high-volume air sampler in China, were measured using an aerosol flow tube coupled with a chemical conversion/laser-induced fluorescence technique at 760 Torr and 298 K, with a relative humidity of 75%. Aerosol particles were regenerated with an atomizer using the water extracts from the aerosol particles. Over 10 samples, the measured HO2 uptake coefficients for the aerosol particles at the Mt. Tai site were ranged from 0.13 to 0.34, while those at the Mt. Mang site were in the range of 0.09–0.40. These values are generally larger than those previously reported for single-component particles, suggesting that the minor components such as metal ions and organics in the particle could contribute to the HO2 uptake. A box model calculation suggested that the heterogeneous loss of HO2 by ambient particles could significantly affect the HOx concentrations and chemistry.

scholarly journals Geochemical and Mineralogical Characteristics of Airborne Particulate Matter in Relation to Human Health Risk

Minerals ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. 866 ◽  
Author(s):  
Marzena Rachwał ◽  
Małgorzata Wawer ◽  
Mariola Jabłońska ◽  
Wioletta Rogula-Kozłowska ◽  
Patrycja Rogula-Kopiec
Keyword(s):  
Magnetic Susceptibility ◽  
Particulate Matter ◽  
Human Health ◽  
Magnetic Particles ◽  
Rank Order ◽  
Human Health Risk ◽  
Airborne Particulate Matter ◽  
Ambient Air ◽  
Average Concentration ◽  
Health Indices

The main objective of this research was the determination of the geochemical and mineralogical properties of particulate matter: TSP (total suspended particles) and, especially PM1 (particles with aerodynamic diameter not greater than 1 µm) suspended in the air of a selected urban area in southern Poland. Identification of the emission sources of metals and metalloids bound in TSP and PM1 as well as the assessment of potential risk of urban ambient air to human health using hazard indices was an additional aim of this investigation. The daily TSP and PM1 quartz fiber filters collected during heating season were subjected to mass magnetic susceptibility (χ) measurements, SEM (Scanning Electron Microscopy) observations and geochemical analyses. Obtained results revealed that the concentration of TSP and PM1 well correlated with their mass-specific magnetic susceptibility. The good relationship between the PM concentration and χ suggests that magnetic susceptibility measurements can be a good proxy of low-level atmospheric dust pollution. The rank order of potentially toxic elements (PTE) based on average concentration was Ba > Zn > Al > Fe > Pb > Mn > Ti > Cu > Cr > Ni >As > Cd > V > Tl, both for TSP and PM1. PM1/TSP ratios for PTE concentrations and χ were around or slightly above unity, which indicated that PM1 was the main carrier of PTE (with the exception of cadmium, copper and lead) and technogenic magnetic particles. The non-carcinogenic and carcinogenic risks were confirmed by very high values of human health indices.

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