INTEGRATING AIR FLOW COUNTER FOR HIGH VOLUME 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.

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Calibration of the High-Volume Air Sampler

AIHAJ ◽

10.1080/00028896909343084 ◽

1969 ◽

Vol 30 (1) ◽

pp. 83-88 ◽

Cited By ~ 3

Author(s):

D. R. Lynam ◽

J. O. Pierce ◽

J. Cholak

Keyword(s):

High Volume ◽

Air Sampler

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Evaluation of the genotoxicity of PM2.5 collected by a high-volume air sampler with impactor

Genes and Environment ◽

10.1186/s41021-019-0120-0 ◽

2019 ◽

Vol 41 (1) ◽

Cited By ~ 1

Author(s):

Kazutoshi Sugita ◽

Yuka Kin ◽

Mayuko Yagishita ◽

Fumikazu Ikemori ◽

Kimiyo Kumagai ◽

...

Keyword(s):

High Volume ◽

Air Sampler

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Performance of the Coriolis air sampler, a high-volume aerosol-collection system for quantification of airborne spores and pollen grains

Aerobiologia ◽

10.1007/s10453-008-9098-y ◽

2008 ◽

Vol 24 (4) ◽

pp. 191-201 ◽

Cited By ~ 39

Author(s):

E. Carvalho ◽

C. Sindt ◽

A. Verdier ◽

C. Galan ◽

L. O’Donoghue ◽

...

Keyword(s):

Pollen Grains ◽

High Volume ◽

Collection System ◽

Airborne Spores ◽

Spores And Pollen ◽

Air Sampler

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Air Flow Patterns in the Operating Theatre

Engineering in Medicine ◽

10.1243/emed_jour_1980_009_021_02 ◽

1980 ◽

Vol 9 (2) ◽

pp. 87-92 ◽

Cited By ~ 5

Author(s):

F H Howorth

Keyword(s):

Air Flow ◽

High Volume ◽

Clinical Results ◽

Flow Patterns ◽

Operating Theatre ◽

Anaesthetic Gases ◽

Theatre Staff ◽

Clean Air ◽

Schlieren Photography ◽

Total Body

Bacteria-carrying particles and exhaled anaesthetic gases are the two contaminants found in the air flow patterns of operating rooms. Their origin, direction and speed were illustrated by a motion picture using Schlieren photography and smoke tracers. Compared with a conventionally well air conditioned operating theatre, it was shown that a downward flow of clean air reduced the number of bacteria-carrying particles at the wound site by sixty times. The Exflow method of achieving this without the restriction of any side panels or floor obstruction was described. The total body exhaust worn by the surgical team was shown to reduce the bacteria count by a further eleven times. Clinical results show that when both these systems are used together, patient infection was reduced from 9 per cent to between 0.3 per cent and 0.5 per cent, even when no pre-operative antibiotics were used. Anaesthetic gas pollution was measured and shown to be generally 1000 p.p.m. at the head of the patient, in induction, operating and recovery rooms, also in dental and labour rooms. A high volume low pressure active scavenging system was described together with its various attachments including one specially for paediatric scavenging. Results showed a reduction of nitrous oxide pollution to between zero and 3 p.p.m. The economy and cost effectiveness of both these pollution control systems was shown to be good due to the removal of health hazards from patients and theatre staff.

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Detection of airborne polyoma virus

Journal of Hygiene ◽

10.1017/s0022172400053717 ◽

1978 ◽

Vol 81 (1) ◽

pp. 9-13 ◽

Cited By ~ 6

Author(s):

Gerard J. McGarrity ◽

Arnold S. Dion

Keyword(s):

Antibody Production ◽

High Speed ◽

Total Concentration ◽

High Volume ◽

Polyoma Virus ◽

Air Samples ◽

Air Sampler ◽

Mouse Antibody

SUMMARYPolyoma virus was recovered from the air of an animal laboratory housing mice infected with the virus. Air samples were obtained by means of a high volume air sampler and further concentrated by high speed centrifugation. Total concentration of the air samples was 7·5 × 107. Assay for polyoma virus was by mouse antibody production tests. Airborne polyoma virus was detected in four of six samples.

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

Pakistan Journal of Scientific & Industrial Research Series A: Physical Sciences ◽

10.52763/pjsir.phys.sci.60.1.2017.50.58 ◽

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 ofKarachis 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.

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MODIFIKASI PERALATAN SAMPLING HVAS PORTABEL UNMODIFIKASI PERALATAN SAMPLING HVAS PORTABEL UNTUK ANALISIS TOTAL PARTIKULAT DI UDARA AMBIENTUK ANALISIS TOTAL PARTIKULAT DI UDARA AMBIEN

Jurnal Riset Teknologi Pencegahan Pencemaran Industri ◽

10.21771/jrtppi.2014.v5.no1.p15-20 ◽

2014 ◽

Vol 5 (1) ◽

pp. 15-20

Author(s):

Agung Budiarto

Keyword(s):

United States ◽

Environmental Protection ◽

Environmental Protection Agency ◽

High Volume ◽

Protection Agency ◽

Air Sampler ◽

Us Epa

High Volume Air Sampler (HVAS) adalah alat pengambil sampel partikulat di udara ambien yang memiliki prinsip kerja dengan sistem vakum dengan menarik udara lingkungan sekitar melalui inlet dengan ukuran-selektif dan melalui filter berukuran 20,3 x 25,4 cm (8” x 10”) pada laju alir 1.132 liter/menit. Pada standard US-EPA (United States Environmental Protection Agency) sering menemui alat sampling yang digunakan memiliki bentuk yang besar (45,5” x 22,5” x 20”) dan berat sekitar 15-20 kg, sehingga timbul ide penelitian untuk membuat desain modifikasi alat pengambil sampel partikulat ambien dengan bentuk yang lebih fleksibel, ringan dan ringkas dengan menggunakan metode uji Gravimetri. Tahap awal penelitian ini adalah melakukan identifikasi peralatan HVAS standard dan peraturan yang mengatur tentang pengujian partikulat. Kemudian merubah bentuk fisik luarnya (memperkecil) tanpa merubah fungsi yang ada didalamnya dan diuji coba bersamaan kinerjanya. Hasil uji coba diolah menggunakan statistik. Dengan menggunakan hasil identifikasi HVAS standard EPA, maka didapat desain modifikasi HVAS dengan dimensi unit utama 15,35” x 15,35” x 10” (PxLxT), kaki knockdown sepanjang 4,5” dari hollow 4x4cm sebanyak 12 buah, dan memiliki berat total sekitar 23 lbs / 10,58 kg.Keseluruhan proses pembuatan alat ini hanya memerlukan biaya sebesar Rp.11.350.000,-. HVAS modifikasi memiliki kemampuan yang tidak beda nyata dengan HVAS existing berdasarkan nilai Anova, dimana nilai P =0,985. HVAS modifikasi yang didesain telah memenuhi standard dengan bentuk lebih kecil dan lebih ringan, sehingga bisa memudahkan dalam penyimpanan dan mobilisasi pengujian sampel partikulat ambien. Berdasarkan penggunaan material untuk pembuatan HVAS modifikasi didapatkan angka yang lebih murah karena reduksi material pembentuk rangka HVAS. HVAS modifikasi dapat dipergunakan sebagai alat sampling untuk pengujian sampel partikulat di udara ambien.

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