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Предметтик рубрикатор : heavy metals ✕

Коллекция [2]

Окумуштуулар [17]

БУУнун туруктуу өнүгүүсү [8]

Факультет / Институт [3]

Басылманын түрү [4]

Жарыяланган жылы [10]

Тили [2]

Булагы [18]

Маалымат базалар [11]

Индекс түрү [5]

Индекс түрү 2 [1]

Басмаканасы [12]

Бөлүмү [5]

Улуттук/Эл аралык [2]

Предметтик рубрикатор [70]

Оценка безопасности рыб, обитающих в водоемах Кыргызской Республики

Aygül USUBALİYEVA

В работе приведены результаты исследования содержания тяжелых металлов (Cu, Pb, Cd, Hg) в мышечной ткани, кожице и костях рыб серебряного карася (Carassius auratus gibelio) и сазана (Cyprinus carpio), обитающих в водоемах Чуйской области и употребляемых в пищу. Выявлено, что концентрация тяжелых металлов в рыбах различается в зависимости от вида рыб из разных водоемов. Результаты анализа показали, что ртуть накапливается, как правило, в больших концентрациях в мышцах рыб (0,083 мкг/г), чем в кожице и костях (0,002 мкг/г). Также обнаружено максимальное содержание свинца в костях рыбы карась 1,0 ...Дагы

Макала 2017 Mühendislik Fakültesi Проблемы современной науки и образования83 ( 1 ) 85 Көрүүлөр

Trace metal levels in edible wild fungi

Zeki SEVEROĞLU

Metal levels (cadmium, cobalt, chromium, copper, iron, nickel, lead and zinc) of seventeen different edible wild fungi species (Agaricus campestris, Calocybe gambosa, Coprinus comatus, Hericium coralloides, Hydnum repandum, H. repandum var. rufescens, Lactarius deliciosus, L. salminocolor, Macrolepiota procera, Pleurotus ostreatus, P. ostreatus var. columbinus, Ramaria aurea, R. stricta, Rhizopogon luteolus, Sparassis crispa, Suillus bovinus, Tricholoma terreum) growing in Bolu-Turkey were measured by inductively coupled plasma optical emission spectrocopy. The obtained data were analyzed with ...Дагы

Макала 2013 Fen Fakültesi International Journal of Environmental Science and Technology (IJEST)10 ( 2 ) 57 Көрүүлөр

Assessment on phytoplankton composition and heavy metal pollution in a drinking water resource: Lake Terkos (Istanbul, Turkey)

İbrahim İlker ÖZYİĞİT

n this study, the level of water pollution in Lake Terkos, one of the important drinking water resources of Istanbul Metropolitan, was examined by determining the phytoplankton distribution, some physicochemical parameters, nutrients and heavy metal concentrations. For this purpose, samples were collected from eight sampling stations in March and September from the surface water. 34 taxa, from 8 divisions were categorized as Bacillariophyta (17), Charophyta (2), Chlorophyta (5), Cryptophyta (1), Cyanobacteria (5), Euglenozoa (2), Miozoa (1) and Ochrophyta (1). The habitat of blue-green algae A ...Дагы

Макала 2021 Fen Fakültesi Desalination and Water Treatment225 65 Көрүүлөр

1,10-Phenanthroline modified glassy carbon electrode for voltammetric determination of cadmium(II) ions

Ali Osman SOLAK

This study reports the electrochemical modification of glassy carbon (GC) electrode surface with the electro-polymerized form of 1,10-phenanthroline monohydrate (PMH), the characterization of this polyphenanthroline modified electrode (PPMH/GC) and the electroanalytical application suitable for the determination of Cd(II) ions. The PPMH/GC electrode was characterized by cyclic voltammetry, chronoamperometry and atomic force microscopy and formation of polyphenanthroline layer grafted to surface of GC electrode was evidenced. Selectivity of PPMH/GC electrode towards heavy metal ions was investi ...Дагы

Макала 2011 Mühendislik Fakültesi Sensors and Actuators B: Chemical157 ( 1 ) 70 Көрүүлөр

Ecological Assessment of Technogenically Disturbed Soils of the Mountain Ecosystems of Kyrgyz Republic Based on the TRIAD Method

Nurzat TOTUBAYEVA | Kanatbek KOCOBAYEV | Aygül USUBALİYEVA | Ciyde TOKPAEVA

Comprehensive studies of soil contamination were performed in the area of settlement Kichi-Kemin (Kyrgyz Republic). Soils of the Kyrgyz Republic are exposed to waste (tailings) of many industrial enterprises of the mining industry not far from the village of A k-Tuz, located 145 km from the capital of Kyrgyz Republic, Bishkek, at an altitude of 2300 m above sea level. It is noted that 4.17 million tons of radioactive waste from one of the enterprises were once disposed of at four tailings in the Kichi-Kemin Valley. The main waste elements are radioactive thorium, heavy metals such as cadmium, ...Дагы

Макала 2022 Mühendislik Fakültesi Polish Journal of Environmental Studies31 ( 3 ) 65 Көрүүлөр

СТЕПЕНЬ АККУМУЛЯЦИИ ТЯЖЕЛЫХ МЕТАЛЛОВ В НЕКОТОРЫХ ВИДАХ МАКРОМИЦЕТОВ КЫРГЫЗСТАНА

Nazgül İMANBERDİYEVA

В статье представлены результаты работы по выявлению содержания тяжелых металлов в некоторых видах макромицетов, произрастающих на территории г. Бишкека, в различных по уровню техногенного загрязнения участках. Тяжелые металлы оказывают повреждающее действие на разных структурных уровнях организма и трудно выводятся, поэтому актуальной проблемой является поиск эффективных энтеросорбентов, способных снизить их аккумуляцию в организме человека. Такими свойствами обладают сорбенты из природных продуктов, среди которых особое место занимает полисахарид хитин, благодаря таким его уникальным свойств ...Дагы

Макала 2022 Fen Fakültesi Международный журнал прикладных и фундаментальных исследований ( 6 ) 81 Көрүүлөр

Electrochemical Detection of Cadmium and Lead in Rice on Manganese dioxide Reinforced Carboxylated Graphene Oxide Nanofilm

Ali Osman SOLAK

Manganese dioxide decorated carboxylated graphene oxide (Mn-GO-COOH) attached onto the glassy carbon (GC) electrode to develop a new method for the simultaneous determination of Cd2+ and Pb2+ ions in rice samples. Graphene oxide (GO) was attached on 4-aminophenyl covalently modified glassy carbon surface via amide reaction. As-prepared modified material was characterized with XPS, SEM and electrochemical methods. A novel differential pulse anodic stripping voltammetric (DPASV) method was developed for the simultaneous determination of Cd2+ and Pb2+ on the GC/Mn-GO-COOH nanoplatform electrode. ...Дагы

Макала 2018 Mühendislik Fakültesi MANAS Journal of Engineering (MJEN)6 ( 2 ) 46 Көрүүлөр

Ecology and Environmental Aspects of “Makmalzoloto” Gold Mining Area in Kyrgyzstan

Nazgül İMANBERDİYEVA

This investigation enlightens the original data on the ecological situation of Makmal Valley and neighboring villages Makmal and Chetbulak Toguz-Toro in “Makmalzoloto” gold mining area in Kyrgyzstan. The study was undertaken to put forward the possibilities for preservation of rich biodiversity and ecological state in these villages. The area is under pressure from the activities of gold extraction. Even today environmental pollution and high levels of radiation are observed. The extraction activity has seriously damaged and produced a negative impact on pastures, livestock, as well as biodive ...Дагы

Китеп бөлүмү 2018 Fen Fakültesi Vegetation of Central Asia and Environs ( Chapter 13 ) 22 Көрүүлөр

Lemna minor, a hyperaccumulator shows elevated levels of Cd accumulation and genomic template stability in binary application of Cd and Ni: a physiological and genetic approach

İbrahim İlker ÖZYİĞİT

In this study, to determine whether having potential to be used as hyperaccumulator for Cd and Ni, numerous experiments were designed for conducting assessments for physiological and genotoxic changes along with defining possible alterations on mineral nutrient status of Lemna minor L. by applying Cd-Ni binary treatments (0, 100, 200 and 400 mu M). Our study revealed that there were increases in the concentrations of B, Cr, Fe, K, Mg, and Mn whereas decreases were noticed in the concentrations of Na and Zn and the levels of Ca were inversely proportional to Cd-Ni applications showing tendency ...Дагы

Макала 2021 Fen Fakültesi International Journal of Phytoremediation23 ( 12 ) 96 Көрүүлөр

A Comparison of Various Ecological Indexes for Environmental Assessment of Vulnerable Mountain Ecosystems

Nurzat TOTUBAYEVA | Kanatbek KOCOBAYEV | Gülbübü KURMANBEKOVA | Ciyde TOKPAEVA

The aim of this work was to compare various ecological indexes to assess the state of urbanized ecosystems of the Issyk-Kul region in the Kyrgyz Republic. Soil samples were analyzed for Pb, Zn, Fe, Cu and Cd using AAS. Heavy metal contamination status was assessed using indexes for enrichment factor, geo accumulation, contamination factor, degree of contamination, pollution load, potential ecological risk and integrated risk using the Triad approach. Results show marked variations of heavy metal concentrations within the study area. The concentrations of heavy metals in soils of Issyk-Kul had ...Дагы

Макала 2020 Mühendislik Fakültesi Polish Journal of Environmental Studies29 ( 4 ) 102 Көрүүлөр

Using the Turkish Red Pine Tree to Monitor Heavy Metal Pollution

İbrahim İlker ÖZYİĞİT

Turkish red pine is an evergreen tree species widely distributed in the Aegean and Mediterranean regions in Turkey. In the present work, the heavy metal pollution level in Istanbul was investigated using Turkish red pine as a biomonitor. For determining heavy metal concentrations (Cd, Co, Cr, Mn, Ni and Pb) in leaf (unwashed and washed) and bark samples of Turkish red pine and its co-located soil samples we used ICP-OES. Additionally, particulate matter profiles of the research areas were investigated. The samples were collected from 5 different localities: 4 from the Bosporus region (Yildiz G ...Дагы

Макала 2020 Fen Fakültesi Polish Journal of Environmental Studies29 ( 5 ) 72 Көрүүлөр

Assessment of Some Nutrient Contents and Heavy Metal Accumulation in Some Wild Edible Mushrooms in Türkiye = Türkiye'de Yenilen Bazı Yabani Mantarlarda Bazı Besin İçerikleri ve Ağır Metal Birikiminin Değerlendirilmesi

Ali ASLAN

In this study, it was aimed to identify mushrooms gathered from two different regions and localities of Türkiye and to determine their heavy metal and nutrient contents. Four of the mushrooms (Coprinus comatus (O.F. Müll.) Pers, Cantharellus cibarius Fr., Pleurotus ostreatus (Jacq.) P. Kumm. and Lactarius glyciosmus (Fr.) Fr.) from nearby settlements, while the others (Hydnum repandum L., Pleurotus eryngii (DC.) Quél and Lactarius delicious (L.) Gray)) were collected from rural areas. All species have known and consume by local peoples. All identified species were given along with their trophi ...Дагы

Макала 2023 Fen Fakültesi Mantar Dergisi14 ( 2 ) 11 Көрүүлөр