Fine particulate chemical composition and light extinction at Canyonlands National Park using organic particulate material concentrations obtained with a multisystem, multichannel diffusion denuder sampler

1996 ◽  
Vol 101 (D14) ◽  
pp. 19515-19531 ◽  
Author(s):  
Delbert J. Eatough ◽  
David A. Eatough ◽  
Laura Lewis ◽  
Edwin A. Lewis
Keyword(s):  
Chemical Composition ◽  
National Park ◽  
Particulate Material ◽  
Light Extinction ◽  
Fine Particulate ◽  
Canyonlands National Park

Fine Particulate Chemical Composition and Light Extinction at Meadview, AZ

2006 ◽  
Vol 56 (12) ◽  
pp. 1694-1706 ◽  
Author(s):  
Delbert J. Eatough ◽  
Wenxuan Cui ◽  
Jeffery Hull ◽  
Robert J. Farber
Keyword(s):  
Chemical Composition ◽  
Light Extinction ◽  
Fine Particulate

scholarly journals Mass size distributions and size resolved chemical composition of fine particulate matter at the Pittsburgh supersite

2004 ◽  
Vol 38 (20) ◽  
pp. 3127-3141 ◽  
Author(s):  
Juan C. Cabada ◽  
Sarah Rees ◽  
Satoshi Takahama ◽  
Andrey Khlystov ◽  
Spyros N. Pandis ◽  
...  
Keyword(s):  
Particulate Matter ◽  
Chemical Composition ◽  
Fine Particulate Matter ◽  
Size Distributions ◽  
Fine Particulate ◽  
Mass Size

Trends in Chemical Composition of Global and Regional Population-Weighted Fine Particulate Matter Estimated for 25 Years

2017 ◽  
Vol 51 (19) ◽  
pp. 11185-11195 ◽  
Author(s):  
Chi Li ◽  
Randall V. Martin ◽  
Aaron van Donkelaar ◽  
Brian L. Boys ◽  
Melanie S. Hammer ◽  
...  
Keyword(s):  
Particulate Matter ◽  
Chemical Composition ◽  
Fine Particulate Matter ◽  
Fine Particulate ◽  
Regional Population

scholarly journals Essential Oil Composition ofPinus peuceGriseb. Needles and Twigs from Two National Parks of Kosovo

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Avni Hajdari ◽  
Behxhet Mustafa ◽  
Dashnor Nebija ◽  
Hyrmete Selimi ◽  
Zeqir Veselaj ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
National Park ◽  
Essential Oil Composition ◽  
Gas Chromatography Mass Spectrometry ◽  
Oil Composition ◽  
Plant Materials ◽  
Geographical Variations

The principal aim of this study was to analyze the chemical composition and qualitative and quantitative variability of essential oils obtained from seven naturally grown populations of thePinus peuceGrisebach, Pinaceae in Kosovo. Plant materials were collected from three populations in the Sharri National Park and from four other populations in the Bjeshkët e Nemuna National Park, in Kosovo. Essential oils were obtained by steam distillation and analyzed by GC-FID (Gas Chromatography-Flame Ionization Detection) and GC-MS (Gas Chromatography-Mass Spectrometry). The results showed that the yield of essential oils (v/wdry weight) varied depending on the origin of population and the plant organs and ranged from 0.7 to 3.3%. In total, 51 compounds were identified. The main compounds wereα-pinene (needles: 21.6–34.9%; twigs: 11.0–24%),β-phellandrene (needles: 4.1–27.7; twigs: 29.0–49.8%), andβ-pinene (needles: 10.0–16.1; twigs: 6.9–20.7%). HCA (Hierarchical Cluster Analysis) and PCA (Principal Component Analyses) were used to assess geographical variations in essential oil composition. Statistical analysis showed that the analyzed populations are grouped in three main clusters which seem to reflect microclimatic conditions on the chemical composition of the essential oils.

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