Search results

Filters

  • Journals
  • Autorzy
  • Słowa kluczowe
  • Data
  • Typ

Search results

Number of results: 6
items per page: 25 50 75
Sort by:
Download PDF Download RIS Download Bibtex

Abstract

Investigations were carried out in order to evaluate biodegradability of two pesticides - pure active substance 2,4-dichlorophenoxyacetic acid (2,4 D) and specific preparation created at the base of 2,4-D - Aminopielik 720. Biodegradation was carried out according to OECD standards - Method 301E and 303A. After biodegradation toxicity of intermediates was also determined. Investigated preparations were biodegradable in coupled units test Biodegradation rate, observed at the base of COD standard analysis, was over 90%. Intermediates didn't show significant toxicity with reference to fish, algae and daphnia.
Go to article

Authors and Affiliations

Elżbieta Grabińska-Sota
Dorota Kalka
Barbara Wiśniowska
Beata Ścieranka
Download PDF Download RIS Download Bibtex

Abstract

The purpose of the study was to analyse the effect of changes in the composition of raw material and agglomeration on sorption properties of a multi-component food, in the example of a powdered cocoa beverage. The basic composition of the mixtures was 20% of cocoa and 80% of sucrose. A change in raw material composition involved partial or total replacement of sucrose with a mixture of glucose and fructose, or with maltodextrin. Analysis of sorption properties demonstrated variability in the course of isotherms of water vapour sorption for components of the powdered cocoa beverage. Limiting water activity (aw) was determined for the value of 0.529. The conducted analysis detected no significant effect of agglomeration on water content in the tested products. However, a significant change in the raw material composition was demonstrated.

Go to article

Authors and Affiliations

Jolanta Kowalska
Ewa Majewska
Andrzej Lenart
Download PDF Download RIS Download Bibtex

Abstract

This article shows how the Iliad is an object of creative reception by Callimachus in his sixth hymn, the "Hymn to Demeter".

Go to article

Authors and Affiliations

Annette Harder
Download PDF Download RIS Download Bibtex

Abstract

In some areas of the United States (US), asthma prevalence has reached historically unprecedented highs. Three peer-reviewed studies in New York City found prevalence rates among children from 25% to 39%. That is not true in all places. For example, prevalence in Miami, Florida, was estimated to be only 6-10%. A recent study in major cities in Georgia found only 8.5%. One study in California found asthma prevalence was unrelated to local concentrations of criterion pollutants. In the US, all criterion pollutants, including PM2.5, show a downward trend over the last two decades. These facts argue against any significant influence of criterion pollutants in this crisis.These facts suggest that an unrecognized ambient pollutant may be the cause. One important study in southern California in mid-summer measured pulmonary function in children as it was related to outdoor ozone pollution. They found a negative association; higher levels of ozone were associated with improved respiratory function. We call this a "Paradoxical Ozone Association" (POA). Further evidence for a POA appears in seven other studies in Los Angeles, London, Scotland, and southeastern Canada.One plausible explanation for these observations would be the production of methyl nitrite (MN) as an exhaust product of MTB E in gasoline. Unlike ozone, MN is rapidly destroyed by sunlight. All of the POA studies were done in regions with significant methyl ether in gasoline. This explanation is strengthened by the observation that a POA has not been seen in regions without ether in gasoline.A previous A WMA paper proposed a plausible chemical model predicting that MTBE in gasoline will create MN in the exhaust. MN is highly toxic and closely related alkyl nitrites are known to induce respiratory sensitivity in humans. Funding to measure MN has not been available
Go to article

Authors and Affiliations

Peter M. Joseph
Download PDF Download RIS Download Bibtex

Abstract

Objectives: Accidental exposure to non-fire related carbon monoxide (CO) in young people is largely unquantified. Our aim was to estimate the possibility of exposure to CO and the awareness of intoxication in the population of students living in Kraków, one of the largest academic cities in Poland.
Methods: Anonymous questionnaires about CO poisoning were distributed among medical and non- medical students living in Kraków.
Results: 1081 questionnaires were collected — 16% of study participants knew a person who had been poisoned with carbon monoxide, 51.2% of students using a bathroom water heater believed that they had no risk of CO poisoning. Medical students gained significantly higher scores in the CO-poisoning knowl-edge test than non-medical ones.
Conclusions: There is still unsatisfactory awareness of CO poisoning among non-medical students in Kraków.
Go to article

Bibliography

1. Krzyżanowski M., Seroka W., Skotak K., Wojtyniak B.: Mortality and Hospital Admissions Due to Carbon Monoxide Poisoning in Poland. Saf Fire Tech. 2014; 33 (1): 75–82.
2. Gomółka E., Gawlikowski T.: Estimation of carbon monoxide poisonings frequency, based on carboxyhemoglobin determinations performed in Toxicology Laboratory in Krakow in years 2002– 2010. Przegl Lek. 2011; 68 (8): 413–416.
3. Świderska A., Sein Anand J.: Selected data concerning acute intoxications with xenobiotics in Poland in the year 2010. Przegl Lek. 2012; 69 (8): 409–414.
4. Jakóbik K., Chochorowska A., Czekaj A., et al.: Statistical Yearbook Of Kraków 2015. Statistical Office in Kraków 2015.
5. Czerski G.: Impact Assessment of Selected Factors on the Risk of Poisoning with Combustion Products From Gas Appliances. Saf Fire Tech. 2014; 33 (1): 67–74.
6. Earnest G., Mickelsen R., McCammon J., et al.: Carbon monoxide poisonings from small, gasoline- powered, internal combustion engines: just what is a “well-ventilated area”? Am Ind Hyg Assoc J. 1997; 58 (11): 787–791.
7. Meredith T., Vale A.: Carbon monoxide poisoning. Br Med J Clin Res Ed. 1988; 6615 (296): 77–79.
8. Chang C.: Longitudinal study of carbon monoxide intoxication by diffusion tensor imaging with neuropsychiatric correlation. J Psychiatry Neurosci. 2010; 35 (2): 115–125.
9. Sadovnikoff N., Varon J., Sternbach G.: Carbon monoxide poisoning: An occult epidemic. Postgrad Med. 1992; 92 (4): 86–96.
10. Barret L., Danel V., Faure J.: Carbon Monoxide Poisoning, a Diagnosis Frequently Overlooked. J Toxicol Clin Toxicol. 1985; 23 (4–6): 309–313.
11. Marchewka J., Gawlik I., Dębski G., Popiołek L, Marchewka W., Hydzik P.: Cardiological aspects of carbon monoxide poisoning. Folia Med Cracov. 2017; 57 (1): 75–85.
12. Lehr E.: Carbon monoxide poisoning: a preventable environmental hazard. Am J Public Health Nations Health. 1970; 60 (2): 289–293.
13. Krawczyk P., Cebula G., Drab E., et al.: The impact of the European Resuscitation Council in Poland. Resuscitation. 2008; 77 (2): S60.
14. Pach J., Ogonowska D., Targosz D., Dziuban A., Brzyski P., Pach D.: Students knowledge on carbon monoxide. Przegl Lek. 2010; 67 (8): 583–590.
15. Weaver L.: Carbon Monoxide Poisoning. N Engl J Med. 2009; 360 (12): 1217–1225.
16. Raub J., Mathieu-Nolf M., Hampson N., Thom S.: Carbon monoxide poisoning—a public health perspective. Toxicology. 2000; 145 (1): 1–14.
Go to article

Authors and Affiliations

Iwona Popiołek
1 2
Lech Popiołek
3
Jakub Marchewka
4 5
Grzegorz Dębski
6
Justyna Bolech-Gruca
1
Małgorzata Szumińska
7
Piotr Hydzik
1 2

  1. University Hospital in Kraków, Kraków, Poland
  2. Department of Toxicology and Environmental Diseases, Jagiellonian University Medical College, Kraków, Poland
  3. Private practice, Kraków, Poland
  4. Department of Physiotherapy, University of Physical Education, Kraków, Poland
  5. Department of Orthopedics and Trauma Surgery, 5th Military Hospital, Kraków, Poland
  6. Radiology Department, 5th Military Hospital, Kraków, Poland
  7. Department of Endocrinology, Jagiellonian University Medical College, Kraków, Poland

This page uses 'cookies'. Learn more