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Wyświetlanie 1-7 z 7
Tytuł:
Distribution of Diazinon and Selenium in Various Tissues after Single and Common Intraperitoneal Administration
Dystrybucja diazinonu i selenu w wybranych tkankach po pojedynczym podaniu dootrzewnowym
Autorzy:
Šiška, B.
Toman, R.
Golian, J.
Bošiak, M.
Kovac, S.
Powiązania:
https://bibliotekanauki.pl/articles/388389.pdf
Data publikacji:
2009
Wydawca:
Towarzystwo Chemii i Inżynierii Ekologicznej
Tematy:
dianizon
selen
wątroba
nerki
mięśnie
tłuszcz
podanie dootrzewnowe
diazinon
selenium
liver
kidney
muscle
fat
intraperitoneal administration
Opis:
The aim of this study was to evaluate the distribution of diazinon and selenium in various tissues of laboratory rats after single and common intraperitoneal administration. Rats in the age of 135 days were randomly divided into 4 groups. Each group consisted of 10 males. Animals in the first group were administrated with diazinon 20 mg o kg-1 body weight intraperitoneally. Animals in the second group were administrated with selenium (Na2SeO3) 2 mg Se o kg-1 body weight intraperitoneally in physiological solution. Animals in the third group were given a mixture of diazinon 20 mg o kg-1 body weight and selenium 2 mg Se o kg-1 body weight intraperitoneally in physiological solution. The fourth group served as a control group and was administrated only with the physiological solution. 24 hours after the administration of tested substances, animals were sacrificed and samples of livers, kidneys, muscles and fat tissue were taken during the autopsy. The amount of diazinon in tissues was determined using gas chromatography with mass spectrometry. The amount of selenium was determined using atomic absorption spectrometry. We detected significant increase of selenium amount in livers, kidneys and muscles after single selenium administration and also after common administration of both substances. On the other hand we detected significant decrease of selenium amount in muscles and fat tissue after single diazinon administration. We also observed slight accumulation of diazinon amount in samples of kidneys and muscles and significant increase of diazinon in fat tissue after single diazinon administration and also after common administration of both substances.
Celem pracy było określenie dystrybucji dianizonu i selenu w różnych tkankach szczurów laboratoryjnych po pojedynczym dootrzewnowym podaniu. Szczury w wieku 135 dni zostały losowo przyporządkowane do 4 grup. Każda grupa składała się z 10 samców. Zwierzętom z pierwszej grupy podano dootrzewnowo dianizon w dawce 20 mg o kg-1 masy ciała. Zwierzętom drugiej grupy podano dootrzewnowo selen w roztworze fizjologicznym (Na2SeO3) w dawce 2 Se mg o kg-1 masy ciała. Zwierzęta trzeciej grupy otrzymały dootrzewnowo mieszaninę dianizonu (20 mg o kg-1) i selenu (Na2SeO3 - 2 Se mg o kg-1) w roztworze fizjologicznym. Czwartą grupę stanowiły zwierzęta kontrolne, którym podano wyłącznie roztwór fizjologiczny. Po 24 godzinach od podania dianizonu i selenu zwierzęta uśmiercono, po czym pobrano próbki wątroby, nerek, mięśni i tkanki tłuszczowej. Poziom dianizonu w tkankach został zbadany przy użyciu chromatografii gazowej oraz spektrofotometrii masowej. Selen oznaczono metodą spektrofotometrii absorpcji atomowej. Stwierdzono istotny statystycznie wzrost poziomu selenu w wątrobie, nerkach i mięśniach po jednorazowym podaniu selenu, a także po podaniu mieszaniny selenu i dianizonu. Z drugiej strony odnotowano również istotny statystycznie spadek zawartości selenu w mięśniach i tkance tłuszczowej po jednorazowym podaniu dianizonu. Zaobserwowano także niewielki wzrost poziomu dianizonu w nerkach i mięśniach oraz istotny statystycznie wzrost zawartości tego związku w tkance tłuszczowej zarówno po jednorazowym podaniu dianizonu, jak i po podaniu mieszaniny dianizonu i selenu.
Źródło:
Ecological Chemistry and Engineering. A; 2009, 16, 12; 1617-1626
1898-6188
2084-4530
Pojawia się w:
Ecological Chemistry and Engineering. A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Sonondegradation of organophosphorus pesticides in water
Autorzy:
Dehghani, M. H.
Fadaei, A.
Powiązania:
https://bibliotekanauki.pl/articles/208018.pdf
Data publikacji:
2013
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
pesticides
gas chromatography
human organism
sonolysis
ultrasound irradiation
diazinon
malathion
pestycydy
chromatografia gazowa
organizm ludzki
sonoliza
diazynon
malation
promieniowanie ultradźwiękowe
Opis:
Organophosphorus pesticides (OPPs), such as diazinon and malathion, are widely found in water resources. When absorbed by human organisms, OPP s are very toxic mainly because they deactivate acetyl cholinesterase. In the present study, the degradation of diazinon and malathion was investigated. The experiments were conducted for diazinon concentrations of 100, 300, 500 μg/dm3 and malathion concentrations of 200,400,600 μg/ dm3. Sonochemical examination was done using an ultrasonic reactor at 130 kHz and 500 NW for five times, and then the amount of the pesticide in a sample was measured by the gas chromatography with a flame ionization detector (GC-FID).The highest degradation of malathion and diazinon by the sonolysis process occurred at pH 9 and 3, respectively. The study demonstrates that malathion and diazinon could be effectively degraded by ultrasonic irradiation.
Źródło:
Environment Protection Engineering; 2013, 39, 4; 5-14
0324-8828
Pojawia się w:
Environment Protection Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of cold plasma on degradation of organophosphorus pesticides used on some agricultural products
Autorzy:
Mahbubeh Mousavi, Seyyedeh
Imani, Sohrab
Dorranian, Davoud
Larijani, Kambiz
Shojaee, Mahmoud
Powiązania:
https://bibliotekanauki.pl/articles/961633.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
chlorpyrifos
cold plasma
diazinon
detoxifi cation
Opis:
This study investigated the potential effect of cold plasma on reducing residues of pesticides diazinon and chlorpyrifos in apples and cucumbers and its effects on property of products. Two separate concentrations of each pesticide with 500 and 1,000 ppm were prepared and the samples were inoculated by dipping them into the solutions. All samples treated with pesticides were exposed to cold plasma in a monopole cold plasma apparatus (DBD) run at 10 and 13 kV voltages. Liquid-liquid extraction (LLE) was used to remove pesticide residues from the samples. Eventually, high-performance liquid chromatography (HPLC) was used to measure the amount of pesticides in the samples. Also, to investigate generated metabolites, extracts were injected into a GC/MS apparatus. In addition, the eff ects of cold plasma on humidity, tissue hardness, color and the sugar percentage of products were analyzed. Th e results revealed that treatment of samples with cold plasma considerably reduced pesticide residues without leaving any traces of harmful or toxic substances. Furthermore, it did not have any undesirable effects on the color and texture of the samples. The efficiency of this method increased with higher voltage and longer exposure time. In general, the best results were obtained by the combination of 500 ppm concentration, 10 min exposure and 13 kV voltages. The residues of diazinon were reduced better than the residues of chlorpyrifos. Apples were detoxified much better than cucumbers. Also, cold plasma treatment transformed diazinon and chlorpyrifos pesticides into their less toxic metabolites. The results showed that with increased voltage and longer exposure time, cold plasma caused few changes in moisture and glucose content, texture hardness and color of products. There were no significant difference between treated samples and control in all treatments.
Źródło:
Journal of Plant Protection Research; 2017, 57, 1
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Remediation technologies of diazinon and malathion residues in aquatic system
Autorzy:
Derbalah, A.
Ismail, A.
Powiązania:
https://bibliotekanauki.pl/articles/207344.pdf
Data publikacji:
2013
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
biotechnology
bioremediation
microorganisms
water pollution
remediation technologies
contaminated water
biotechnologia
bioremediacja
mikroorganizmy
zanieczyszczenie wody
remediacja
techniki remediacyjne
woda zanieczyszczona
Opis:
The study was carried out to evaluate the efficiencies of various remediation technologies (advanced oxidation processes and bioremediation) for removing diazinon and malathion residues from water. Nano photo-Fenton reagent (Fe0(nano)/H2O2AJV) was the most effective treatment for diazinon and malathion removal while ultraviolet alone was the least effective one. Bioremediation of diazinon and malathion by effective microorganisms (EMs) removed about 100% of their initial concentration. There was no remaining toxicity in contaminated water after remediation except for ultraviolet alone on treated rats. Advanced oxidation processes with nanomaterials and bioremediation with effective microorganisms can be regarded as safe and effective remediation technologies.
Źródło:
Environment Protection Engineering; 2013, 39, 3; 135-147
0324-8828
Pojawia się w:
Environment Protection Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cellular energy allocation in the predatory bug, Andrallus spinidens Fabricius (Hemiptera: Pentatomidae), following sublethal exposure to diazinon, fenitrothion, and chlorpyrifos
Autorzy:
Chitgar, M.G.
Hajizadeh, J.
Ghadamyari, M.
Karimi-Malati, A.
Sharifi, M.
Hoda, H.
Powiązania:
https://bibliotekanauki.pl/articles/66608.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Opis:
It is necessary to study the biochemical changes in insects exposed to toxicants if we want to predict the potential of various chemicals on the natural enemy. Physiological energy, as a biochemical biomarker, may be affected by many pesticides including organophosphate compounds. Therefore, in this study, the sublethal effects of diazinon, fenitrothion, and chlorpyrifos on the cellular energy allocation (CEA) of the predatory bug, Andrallus spinidens Fabricius (Hemiptera: Pentatomidae), a potential biological control agent, was studied on 5th-instar nymphs. Among the energy reserves of the A. spinidens nymphs, only total protein was significantly affected by pesticide treatments, and the highest value was observed in chlorpyrifos treatment. The energy available (Ea) and energy consumption (Ec) in A. spinidens were significantly affected by these pesticides. In exposed bugs, these parameters were affected by fenitrothion and chlorpyrifos more than diazinon. The activity of the electron transport system (ETS) in the Ec assay showed that A. spinidens exposed to chlorpyrifos had the highest rate of oxygen consumption. Although, there was no significant change in CEA, the insecticides caused a marked change in the physiological balance of A. spinidens. The results suggested that the adverse effect of these insecticides on A. spinidens should be considered in Integrated Pest Management (IPM) programs.
Źródło:
Journal of Plant Protection Research; 2014, 54, 1
1427-4345
Pojawia się w:
Journal of Plant Protection Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Metoda oznaczania bromofosu, diazinonu i metylopirymifosu w owocach i warzywach
A method for determination of bromofos, diazinone and methylpyrimifos in fruit and vegetables
Autorzy:
Zadrozinska, J.
Powiązania:
https://bibliotekanauki.pl/articles/876496.pdf
Data publikacji:
1977
Wydawca:
Narodowy Instytut Zdrowia Publicznego. Państwowy Zakład Higieny
Tematy:
metody oznaczania
zawartosc bromofosu
diazinon
zawartosc diazinonu
metylopirymifos
owoce
warzywa
insektycydy
metody enzymatyczne
chromatografia cienkowarstwowa
ochrona warzyw
Źródło:
Roczniki Państwowego Zakładu Higieny; 1977, 28, 1
0035-7715
Pojawia się w:
Roczniki Państwowego Zakładu Higieny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wpływ diazynonu (Basudin 25EC) na proces fermentacji metanowej komunalnych osadów ściekowych
Impact of Diazinon (Basudin 25EC) on the Anaerobic Digestion Process of Municipal Sewage Sludge
Autorzy:
Sadecka, Z.
Myszograj, S.
Sieciechowicz, A.
Płuciennik-Koropczuk, E.
Powiązania:
https://bibliotekanauki.pl/articles/1818611.pdf
Data publikacji:
2015
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
insektycydy
toksyczność
fermentacja metanowa
biogaz
insecticides
toxicity
anaerobic digestion process
biogas
Opis:
The process of methane fermentation is a labile process, sensitive to changes in the environment and susceptible to various substances which may turn out to be toxic for anaerobic biocenosis. The process may be inhibited by both the substances supplied together with the substrate and also the products resulting from the decomposition phases. The group of toxic substances which influences the fermentation process comprises heavy metals, organic compounds, ammonia nitrogen, lower organic acids, nitrogen or sulphur compounds, add to this a large group of organic micropollutants such as hormones added to fodder, disinfectants, insecticides, chemotherapeutics, antibiotics or chemical plant protection products which are all overlooked. These compounds, while occurring in the media subjected to anaerobic stabilisation, may cause a decrease in the speed of the process, possibly also causing its disruption. The inhibitory effect of various chemical compounds on the course of the fermentation process may be evaluated on the basis of the characteristics of the microorganism community, dynamics of changes in its structure and activity of the population. The determination of the activity of enzymes participating in the methane fermentation may be used to evaluate the impact of xenobiotics on the fermentation process and the efficiency of methane production. In the operational practice referring to the fermentation equipment, the impact of biotic and abiotic factors may be evaluated on the basis of changes in the process parameters. The changes in the quantity of microorganisms and the low enzymatic activity cause a decrease in the efficiency of biogas production including methane, as well as a reduction in the effectiveness of the process measured by the loss of the content of organic compounds. The paper presents the results of laboratory tests, concerning the effect of diazinon on the course of biogas production in the process of the methane fermentation of municipal sewage sludge. Diazinon is one of the representatives of phosphate insecticides and an active substance of the commercial preparation bearing the name Basudin 25EC. The effect of the preparation on the course of the process of methane fermentation of sewage sludge was studied within a dose range from 0.5 to 30 mg/ dm-3. The characteristic indicators of the course of anaerobic stabilisation of sewage sludge include the quantity and the composition of the fermentation gas in reference to the fermentation temperature and time. Based on the changes of these parameters, the inhibitive effect of diazinon contained in the Basudin 25EC technical preparation was evaluated. The biogas production in sludge with various doses of diazinon was assumed as a measure of toxicity in reference to the control sludge. The results of the studies showed that: Anaerobic microorganisms are characterised by sensitivity to the Basudin 25EC utility preparation (with a content of 25% diazinon). The first symptoms of the inhibition of the fermentation process occurred at doses of the preparation amounting to 0.5, 1 and 2 mg/dm-3. The inhibition is confirmed by a decrease in the biogas production of about 10%. The intensification of inhibition symptoms was evident at doses ranging from 4 to 8 mg/ dm-3. The reduction in biogas production ranged from 13,0–25,0%. In the sludge where the greatest dose of the preparation was applied, that is, 30 mg/ dm-3, the biogas efficiency went down from 522 dm-3/kg of dry matter to 57.0 dm-3/kg of dry matter. A 10 mg/ dm-3 dose of Basudin 25EC, causing a 60% decrease in the efficiency of biogas production (from 522 to 211 dm-3/kg of dry matter) must be regarded as toxic for the process of methane fermentation of municipal sludge sewage.
Źródło:
Rocznik Ochrona Środowiska; 2015, Tom 17, cz. 2; 931-942
1506-218X
Pojawia się w:
Rocznik Ochrona Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-7 z 7

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