scholarly journals Phenotypic features and molecular study of airborne Penicillium species isolated in the northern part of the Persian Gulf, Bushehr, Iran

2021 ◽  
Author(s):  
Behrouz Naeimi ◽  
Iman Mohsenifard ◽  
Saham Ansari ◽  
Farzaneh Sadeghzadeh ◽  
Gholamreza Khamisipour ◽  
...  
Keyword(s):  
High Volume ◽  
Molecular Study ◽  
Natural Ecosystems ◽  
Penicillium Species ◽  
Phenotypic Characters ◽  
Air Sampler ◽  
Culture Independent ◽  
Morphological Species ◽  
The Persian Gulf ◽  
Isolated Species

Background and Purpose: The main environmental saprobes, such as Penicillium, play an essential role in natural ecosystems as economically, ecologically, and medically important microorganisms. Biodiversity of this genus has not been described in Bushehr city, Iran. The present study is based on air biodiversity of Penicillium species on culture dependent approach and culture-independent technique using partial b-tubulin sequences. Materials and Methods: By using active sampling with a high volume air sampler, a total of 157 Penicillium isolates were selected and screened for phenotypic characters. For the purposes of the study, 46 strains representative of 11 morphological species were selected and identified by molecular analysis. Results: Based on the findings, P. crustosum (18 isolates, 39.1%) and P. chrysogenum (15 isolates, 32.6%) were the most common isolated species, followed by P. brevicompactum, P. rubens, P. citrinum, P. italicum (each 2 isolates, 4.3%), P. olsonii, P. expansum, P. griseofulvum, P. palitans, and P. polonicum (each 1 isolate, 2.1%).Except for P. chrysogenum and P. expansum with floccose colony texture, the rest of the isolated species had velutinous texture. Conclusion: This is the first report in southern Iran to identify a large number of Penicillium strains isolated from air samples, showing P. crustosum and P. chrysogenum as the most common isolated species.

An Improved High-Volume Air Sampler and a Weighable Support for Fibre Glass Filters

AIHAJ ◽  
1963 ◽  
Vol 24 (4) ◽  
pp. 404-410
Author(s):  
H. P. Sanderson ◽  
A. F. W. Cole ◽  
Morris Katz ◽  
S. Baburek
Keyword(s):  
High Volume ◽  
Fibre Glass ◽  
Air Sampler

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.

Calibration of the High-Volume Air Sampler

AIHAJ ◽  
1969 ◽  
Vol 30 (1) ◽  
pp. 83-88 ◽  
Author(s):  
D. R. Lynam ◽  
J. O. Pierce ◽  
J. Cholak
Keyword(s):  
High Volume ◽  
Air Sampler

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

2019 ◽  
Vol 41 (1) ◽  
Author(s):  
Kazutoshi Sugita ◽  
Yuka Kin ◽  
Mayuko Yagishita ◽  
Fumikazu Ikemori ◽  
Kimiyo Kumagai ◽  
...  
Keyword(s):  
High Volume ◽  
Air Sampler

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

Aerobiologia ◽  
2008 ◽  
Vol 24 (4) ◽  
pp. 191-201 ◽  
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

scholarly journals Detection of airborne polyoma virus

1978 ◽  
Vol 81 (1) ◽  
pp. 9-13 ◽  
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.

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.

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

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.

scholarly journals Taxonomy confirmation of Puntius cf. binotatus from Gunung Tujuh Lake, Jambi, Indonesia based on Cytochrome Oxidase-I (COI) gene

2018 ◽  
Vol 20 (1) ◽  
pp. 54-60
Author(s):  
DEWI IMELDA ROESMA ◽  
DJONG HON TJONG ◽  
WILA KARLINA ◽  
DYTA RABBANI AIDIL
Keyword(s):  
Cytochrome Oxidase ◽  
Black Spot ◽  
Taxonomic Status ◽  
Molecular Study ◽  
Morphological Characters ◽  
Cytochrome Oxidase I ◽  
Coi Gene ◽  
Phenotypic Characters ◽  
Subspecies Level ◽  
West Sumatra

Roesma D. I, Tjong D. H, Karlina W, Aidil D. R. 2019. Taxonomy confirmation of Puntius cf. binotatus from Gunung Tujuh Lake based on Cytochrome Oxidase-I (COI) gene. Biodiversitas 20: 54-60. The population of Puntius cf. binotatus Gunung Tujuh Lake in considered as an isolated population which found in the 20-30 meters depth under the water Gunung Tujuh Lake, Sumatra Island. The species often exhibit different phenotypic characters and may genetic characters may also different due to their response to habitat/ecological conditions. Previous study on P. binotatus from several locations in West Sumatra showed the complexity of the genetic and morphological characters. A molecular study using COI gene of P. cf. binotatus from Gunung Tujuh Lake in Sumatera has been conducted to determine the taxonomic status of the fish. The distinct morphological characters of Puntius cf. binotatus is one black spot in the middle of the caudal and the absent of black spot on the base of the anterior dorsal ray. The analysis on COI gene showed that the range of sequence divergences between P. cf. binotatus Gunung Tujuh Lake and other Sumatra P. cf. binotatus is 3.1-7.6% and 4.1% to Barbodes banksi. This value represents the differences at the subspecies level of Barbodes banksi. Therefore Barbodes banksi gunungtujuh is proposed as an appropriate name to P. cf. binotatus Gunung Tujuh Lake.

scholarly journals PERBANDINGAN PENGUKURAN KONSENTRASI PARTIKULAT DI UDARA AMBIEN MENGGUNAKAN ALAT HIGH VOLUME AIR SAMPLER DAN GENT STACKED FILTER UNIT SAMPLER

Jurnal Ecolab ◽  
2015 ◽  
Vol 9 (1) ◽  
pp. 17-25
Author(s):  
Rita Mukhtar ◽  
Isa Ansyori ◽  
Esrom Hamonangan ◽  
Muhayatun Santoso ◽  
Diah Dwiana Lestiani
Keyword(s):  
High Volume ◽  
Air Sampler ◽  
Filter Unit
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