نتایج جستجو برای: sea pollutants

تعداد نتایج: 155546  

Journal: :Asian journal of atmospheric environment 2023

Abstract This study aimed to identify the factors causing NH 3 emissions in South Korean Peninsula and West Sea region. To analyze trends of other air pollutants, such as NO x , CO, NR-PM 1 we collected samples from six supersites across peninsula, a roadside Seoul, over different sampling periods, ranging month year. The highest concentrations were found at rural areas, ascribed agricultural a...

2008
Branka I. Ognjanović Jasmina G. Milovanović Nataša Z. Đorđević Snežana D. Marković Radoslav V. Žikić Andraš Š. Štajn Zorica S. Saičić

Fish are the most important organisms in the biomonitoring of aquatic ecosystems. A number of pollutants may cause the oxidative stress in the organism of fish. The monitoring of parameters of oxidative stress in tissues of fish is a good biomarker in the assessment of the condition of environment. Catch of commercially important species of fish, hake (Merluccius merluccius L.) was carried out ...

Journal: :Environmental Research Letters 2022

Abstract The pervasiveness of microplastics in global oceans is raising concern about their impacts on organisms. While quantifying toxicity still an open issue, sampling evidence has shown that rarely are marine found clean; rather, they often contaminated by other types chemical pollutants, some known to be harmful biota and humans. To provide a first tool for assessing the role as vectors pl...

Journal: :International journal of agricultural science and food technology 2022

According to the survey data on seawater quality in Bohai Sea from 2020 2021, a single-factor analysis was carried out environmental of Liaoning, Hebei, Tianjin, Shandong and offshore waters. The results show that 2021 Compared with more serious pollution 2020, main pollutants are active phosphate inorganic nitrogen. spatiotemporal distribution characteristics eutrophication state index high at...

2005
H. Eicken R. Gradinger A. Gaylord A. Mahoney I. Rigor H. Melling

Sediment-laden sea ice is widespread over the shallow, wide Siberian Arctic shelves, with off-shelf export from the Laptev and East Siberian Seas contributing substantially to the Arctic Ocean’s sediment budget. By contrast, the North American shelves, owing to their narrow width and greater water depths, have not been deemed as important for basinwide sediment transport by sea ice. Observation...

Journal: :Environmental Health Perspectives 2000

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان 1390

cement is an essential ingredient in the concrete buildings. for production of cement considerable amount of fossil fuel and electrical energy is consumed. on the other hand for generating one tone of portland cement, nearly one ton of carbon dioxide is released. it shows that 7 percent of the total released carbon dioxide in the world relates to the cement industry. considering ecological issu...

Karami , N, Mohagheghian , A, Shirzad-Siboni , M,

Abstract Introduction: Phenol is amongst the dangerous environmental pollutants, which due to its presence in the industrial effluents, should be removed. Objective: The aim of this study was to evaluate the efficiency of catalytic ozonation by calcined scallop shell as a catalyst in the removal of phenol Materials and Methods: Scallop shells were collected from the coast of Caspian Sea in G...

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