scholarly journals Influence of traffic on the elemental composition of PM10 and PM2.5 in Oporto region

2007 ◽  
Author(s):  
K. Slezakova ◽  
M. A. Reis ◽  
M. C. Pereira ◽  
M. C. Alvim-Ferraz
Keyword(s):  
Elemental Composition ◽  
Pm10 And Pm2.5

scholarly journals Trace Elemental Composition in PM10 and PM2.5 Collected in Cardiff, Wales

2017 ◽  
Vol 111 ◽  
pp. 540-547 ◽  
Author(s):  
G. Mohammed ◽  
G. Karani ◽  
D. Mitchell
Keyword(s):  
Elemental Composition ◽  
Pm10 And Pm2.5 ◽  
Trace Elemental

Assessment of air quality in preschool environments (3–5 years old children) with emphasis on elemental composition of PM10 and PM2.5

2016 ◽  
Vol 214 ◽  
pp. 430-439 ◽  
Author(s):  
Marta Oliveira ◽  
Klara Slezakova ◽  
Cristina Delerue-Matos ◽  
Maria Carmo Pereira ◽  
Simone Morais
Keyword(s):  
Air Quality ◽  
Elemental Composition ◽  
Pm10 And Pm2.5

scholarly journals Elemental Composition and Health Risk Assessment of PM10 and PM2.5 in the Roadside Microenvironment in Tianjin, China

2018 ◽  
Vol 18 (7) ◽  
pp. 1817-1827 ◽  
Author(s):  
Jing Zhang ◽  
Enqi Wei ◽  
Lin Wu ◽  
Xiaozhen Fang ◽  
Fenghua Li ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Health Risk ◽  
Elemental Composition ◽  
Health Risk Assessment ◽  
Pm10 And Pm2.5

scholarly journals Elemental composition of PM10 and PM2.5 for a savanna (cerrado) region of Southern Amazonia

Química Nova ◽  
2016 ◽  
Author(s):  
Franciele Bomfiglio Santanna ◽  
Edilberto Ojeda Almeida Filho ◽  
George Louis Vourlitis ◽  
Paulo Henrique Zanella Arruda ◽  
Rafael da Silva Palácios ◽  
...  
Keyword(s):  
Elemental Composition ◽  
Pm10 And Pm2.5 ◽  
Southern Amazonia

scholarly journals Elemental Composition of Indoor Particulate Matter in Response to Heating Facility at Sakaka City, Saudi Arabia

2017 ◽  
Vol 27 (1) ◽  
pp. 83-92
Author(s):  
Hesham Al-Jeelani Hesham Al-Jeelani
Keyword(s):  
Saudi Arabia ◽  
Particulate Matter ◽  
Elemental Composition ◽  
Black Carbon ◽  
Inductively Coupled Plasma ◽  
Winter Season ◽  
Airborne Particulate Matter ◽  
Heating Facility ◽  
Wood Burning ◽  
Pm10 And Pm2.5

Indoor and outdoor airborne particulate matter (PM10 and PM2.5) were sampled from homes with different heating facilities, located at Sakaka city, northern of Saudi Arabia during winter season. Elemental composition of PM10 and PM2.5 samples, including Al, Ba, Be, Ca, Cd, Co, Cr, Fe, Ga, K, Li, Mg, Mn, Na, Ni, Pb, Se, Te and Tl, were analyzed using inductively coupled plasma-mass spectroscopy (ICP-MS). Black carbon (BC) was also measured using EEL-type Smoke Stain Reflectometer. Results showed that the highest indoor concentration PM2.5 (541.67 µg m–3) and PM10 (1201.39 µg m–3) were found at homes using wood burning as heating facility. The most dominant metals were Na, Fe and Al in the investigated PM2.5 and PM10 samples. The highest concentrations of black carbon were found in homes using wood burning as heating facility. For similar homes in heating facilities, we can deduce that by increasing the number of smoking persons the value of BC increased.

Alterations of ultrastructure and elemental composition in cultured human epidermal keratinocytes after treatment with nitrofurazone and silver sulfadiazine

1987 ◽  
Vol 45 ◽  
pp. 676-677
Author(s):  
A. R. Crooker ◽  
M. C. Myers ◽  
T. L. Beard ◽  
E. S. Graham
Keyword(s):  
Electron Microscopy ◽  
Elemental Composition ◽  
Pyrolytic Carbon ◽  
Human Keratinocytes ◽  
Silver Sulfadiazine ◽  
Epidermal Keratinocytes ◽  
Human Epidermal Keratinocytes ◽  
Culture Systems ◽  
Cytotoxicity Endpoints

Cell culture systems have become increasingly popular as a means of screening toxic agents and studying toxic mechanisms of drugs and other chemicals at the cellular and subcellular levels. These in vitro tests can be conducted rapidly in a broad range of relevant mammalian culture systems; a variety of biological and biochemical cytotoxicity endpoints can be examined. The following study utilized human keratinocytes to evaluate the relative cytotoxicities of nitrofurazone (NF) and silver sulfadiazine (SS), the active ingredients of FURACIN(R) Topical Cream and SILVADENE(R) Cream, respectively. These compounds are anti-infectives used in the treatment of burn patients. Cell ultrastructure and elemental composition were utilized as cytotoxicity endpoints.Normal Human Epidermal Keratinocytes (HK) were prepared from the EpiPackTM culture system (Clonetics Corporation, Boulder, CO). For scanning electron microscopy (SEM) and transmission electron microscopy (TEM), cells were seeded on sterile 35 mm Falcon plastic dishes; for elemental microanalysis, cells were plated on polished pyrolytic carbon discs (E. Fullam, Latham, NY) placed in the culture dishes.

Electron probe x-ray microanalysis and electron microscopy of amino acid absorption and transport by the small intestine: inhibition by chemical poisons and correlation to the elemental composition of the epithelial cells

1986 ◽  
Vol 44 ◽  
pp. 134-135
Author(s):  
A. J. Tousimis
Keyword(s):  
Small Intestine ◽  
Amino Acid ◽  
Epithelial Cells ◽  
Elemental Composition ◽  
Isotope Labeling ◽  
Structural Components ◽  
X Ray ◽  
Human Small Intestine ◽  
Transport Studies

The elemental composition of amino acids is similar to that of the major structural components of the epithelial cells of the small intestine and other tissues. Therefore, their subcellular localization and concentration measurements are not possible by x-ray microanalysis. Radioactive isotope labeling: I131-tyrosine, Se75-methionine and S35-methionine have been successfully employed in numerous absorption and transport studies. The latter two have been utilized both in vitro and vivo, with similar results in the hamster and human small intestine. Non-radioactive Selenomethionine, since its absorption/transport behavior is assumed to be the same as that of Se75- methionine and S75-methionine could serve as a compound tracer for this amino acid.

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