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1.
Kazar Soydan Didem Turgut Nalan Yalçın Melis Turgut Cafer Karakuş Perihan Binnur Kurt 《Environmental science and pollution research international》2021,28(22):27511-27519
Environmental Science and Pollution Research - Pesticides may cause a potential risk to human health when applied in excess to control pests, diseases, and weeds in crop fields. In the current... 相似文献
2.
The effect of simulated rain on folpet and mancozeb residues on grapes and on vine leaves 总被引:1,自引:0,他引:1
Cabras P Angioni A Garau VL Melis M Pirisi FM Cabitza F Pala M 《Journal of environmental science and health. Part. B》2001,36(5):609-618
Artificial rainfalls were used to determine the effect of the amount of the rainfall and the time interval between pesticide application and rainfall event, on folpet and mancozeb residues on grapes and vine leaves. Forty-five mm of rain were administered to the vineyard in different amounts (45; 30+15; 15+15+15 mm). Folpet showed good rainfastness on the grapes and on the leaves. A modest decrease was observed only in the experiments that had received 45 mm of rain at one go. Mancozeb showed a lower rainfastness, since a portion of the deposit was easily washed off also by a modest rainfall. The percentage of this portion was higher in the grapes (38%) than in the leaves (20%). The data obtained in these experiments show that, in the case of folpet, it is not necessary to repeat the treatment when it rains the day after, while it is recommendable to repeat it in the case of mancozeb. 相似文献
3.
In this work the composting process of municipal solid wastes was studied in order to characterize the transformations of organic matter, particularly humic acid (HA). A composting process, lasting three months, was monitored by chemical methods; the following parameters were measured: water-soluble carbon concentration (WSC) and humic substances content (humic and fulvic acid (FA)). The effects of humification on the molecular structure of humic acid (HA) were also evaluated by Fourier transform infrared (FT-IR) and (13)C NMR spectroscopy. WSC concentration rapidly increased reaching a maximum at day-14 of the composting process and then declined. The humic and fulvic acid content (HA and FA, respectively) slightly increased during the process. The FT-IR and (13)C NMR spectra of HA indicate a high rate of change in structure during composting. The groups containing aromatic and carboxylic C increased, while polysaccharides and other aliphatic structures degraded during composting, resulting in HA structures of higher aromaticity. Therefore, spectrometric measurements could provide information significantly correlated to conventional chemical parameters of compost maturity. 相似文献
4.
Filippo M. Pirisi Paolo Cabras Vincenzo L. Garau Marinella Melis Alberto Angioni Diego Bullita 《毒物与环境化学》2013,95(1-4):199-214
The photolysis in water solution of three fungicides (Metalaxyl, Benalaxyl, and Furalaxyl) was studied under artificial light. At λ = 254 Benalaxyl and Furalaxyl underwent fast degradation with rearrangement reactions less complex than those of Metalaxyl. Under A = 254–290 the photolysis was very fast and Benalaxyl and Furalaxyl show a common behaviour. This was found to be a kinetic consecutive process leading, at first, to N‐2,6‐xylyl‐D,L‐alaninate (II), which was degraded to 2,6‐dimethylaniline (IV). This amine gives unknown products. Metalaxyl underwent a parallel/consecutive photodegradtion to give (II) and N‐(methoxyacetyl)‐2,6‐dimethylaniline (VI). While (II) was easily converted to (IV) as earlier, (VI) was more stable to photolysis. Under λ > 290 all the fungicides shown very slow degradation with pseudo first order rate constants. The photoproducts were degraded faster than the parent compounds by factors from 13 to 1800. The presence of photosensitizer in water (humic acids or acetone) resulted in total decomposition of fungicides and of their photoproducts. 相似文献
5.
Esenyel İçen N. Melis İçen Hüseyin Uzuner Gizem 《Environmental and Ecological Statistics》2022,29(4):705-725
Environmental and Ecological Statistics - The present study seeks to determine the convergence of the ecological footprint pressure index for the Association of Southeast Asian Nations (ASEAN-5)... 相似文献
6.
Samantha Melis 《Disasters》2022,46(1):226-245
The response to the earthquakes in Nepal on 25 April and 12 May 2015 was as overwhelming as the magnitude of the events themselves. Tensions between the humanitarian imperative and the post-conflict state-building agenda soon became evident. Many actors offered support by creatively complying with the state's approach, whereas others bypassed official channels completely. In post-conflict settings such as Nepal, the situation is especially complicated because of the contradiction between policies underscoring the importance of the state in the response and the reality of the fragility of the state, which often leads to the significant involvement of aid organisations. The post-conflict political landscape of Nepal shaped the contours of the response, as well as how actors decided to operate within them. This paper, based on empirical findings from four months of research, contributes to a better understanding of the intricacies of the post-conflict and post-disaster nexus in the context of a state-led response. 相似文献
7.
Paolo Cabras Alberto Angioni Vincenzo L. Garau Marinella Melis Filippo. M. Pirisi Franco Cabitza 《Journal of environmental science and health. Part. B》2013,48(6):1189-1199
Abstract Residues of three pesticides (dimethoate, parathion, and pyrazophos) in two artichoke cultivars, Masedu and Spinoso sardo, were investigated. The amount of pesticides in artichokes was greatly affected by the head shape. In the case of the calix‐shaped Masedu artichoke, the residues in whole heads at commercial ripening were on average about twice higher than those of the pagoda‐shaped Spinoso sardo artichoke. In the heart this ratio was 4 to 42 times greater. Residue decay rates were very fast, mainly owing to the dilution effect due to head growth. 相似文献
8.
Patrizia Jereb Rita Cannas Porzia Maiorano Giambattista Bello Fulvio Garibaldi Marco Mereu Francesco G. Ancona Giovanni Ammendolia Pietro Battaglia Önder Duysak Hendrik Jan T. Hoving Eugenia Lefkaditou Marek R. Lipinski Riccardo Melis Panagiota N. Peristeraki Sergio Ragonese Teresa Romeo Alp Salman Maria Begoña Santos Alberto Villari Danila Cuccu 《Marine Biology》2016,163(11):229
9.
Cafer Turgut Teresa J. Cutright Serhan Mermer Levent Atatanir Nalan Turgut Melis Usluy Oktay Erdogan 《Environmental monitoring and assessment》2013,185(2):1087-1093
The concentration and impact of 1,1,1-trichloro-2,2-bis(4-chlorophenyl)-ethane (DDT) and its metabolites (DDE: 1,1-dichloro-2,2-bis(4-chlorophenyl)ethylene) on the environment was expected to decrease after its ban in the mid-1980s. Unfortunately, DDT contamination via its presence as an impurity in dicofol (2,2,2-trichloro-1,1-bis(4-chlorophenyl)ethanol) has led to a new source of contamination. This is particularly true especially in cotton production in Söke Plain, Turkey, where difocol-based pesticides are being used. The aim of this research was to investigate the extent and source of DDT contamination in cotton soils. Söke Plain soil samples were collected from 0–30, 30–60, and 60–90-cm depth and analyzed by GC/MS/MS. o,p′-DDT and p, p′-DDE were detected at 16.2 % and 17.6 % of the sites in the 0–30-cm depth of soils. In the 30–60 cm, p, p′-DDT (14.9 %), o, p′-DDE (8.1 %) and p, p′-DDE (2.7 %) were found in soil samples, and p, p′-DDT was the most prevalent with 9.5 % of the sampling sites. The dominant source of DDT particularly in the 60–90-cm depth was due to historic use of DDT. The presence of p, p′-DDE, o, p′-DDE and p,p′-DDT in the topsoil was attributed to recent dicofol applications. 相似文献
10.
Birgul Mazmanci Mehmet A. Mazmanci Cafer Turgut Levent Atatanir Melis Yalcin Perihan B. Kurt-Karakus 《Journal of environmental science and health. Part. B》2020,55(8):694-703
AbstractOrganochlorine pesticides (OCPs) were analyzed in three different ages (half-, 1.5-, 2.5-year-old) for needles and semi permeable membrane devices (SPMDs) at three deployment periods from sea level to 1881 meter above sea level. Individual HCHs concentrations ranged between 1.4 and 129?pg/g fw depending on the age and sampling season while 2.5-year-old needles showed higher HCHs levels compared to half and 1.5- year-old. Correlation between elevation and HCH concentration in SPMDs was found but not in needle samples. Concentrations of HCHs in SPMDs indicated clearly cold condensation effect on accumulation in winter period and increased with altitude. Concentrations of DDTs in half and 1.5-year-old needles were lower than 2.5-year-old needles. The highest total concentration of DDTs was detected in 1-year-period SPMD. Higher concentrations were found in 2.5-year-old needles for other OCPs. Seasonal and altitude-dependent changes were not observed for other OCPs in SMPDs. Total accumulation of OCPs in SPMDs were found higher than in needles. On the contrary, an increased accumulation rate was observed for HCHs in SPMD. In general, Total concentrations of DDTs and HCHs were similar to total of other OCPs in all altitudes when dominating endosulfan wasnot taken into account in the computation of total concentration of other OCPs. 相似文献