Morphology, Chemical Characterization and Sources of Microplastics in a Coastal City in the Equatorial Zone with Diverse Anthropogenic Activities (Fortaleza city, Brazil)

نویسندگان

چکیده

The aim of the present study was to perform morphological and chemical characterizations microplastics (MPs) found in seawater samples from coast city Fortaleza (CE) using Fourier-transform infrared (FTIR) spectroscopy, Raman spectroscopy differential scanning calorimetry (DSC). Sampling performed a neuston sampler. MPs were separated based on difference density. with varied morphologies found. Fibers fragments most abundant (57% 36.2%, respectively). FTIR, DSC confirmed presence polyurethane alkyd resin, polyethylene, polypropylene, polystyrene, polyamide blends, thermoplastic rubber polyester fibers. main sources their relative contribution fishing activities, food packaging household products 55.1%, laundry 27.2%, wear surface coatings 10.0% automobile tires 7.6%. As result, polystyrene are believed enter marine environment mainly through activities debris packaging, domestic sewage contaminated by washing clothes fibers, resin abrasive coatings, as well particles tires. Thus, one may infer that anthropogenic activities. Additionally, there is less information blends weathered commercial polymer databases. Therefore, MP spectra obtained this can serve database compare characterize these more complex MPs.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

the effect of the record infancy in crimilly acts of guilties (in karaj city)

چکیده یکی از مهمترین دغدغه های بزرگ جوامع بشری، از دیر باز تا کنون که ذهن پژوهشگران و متخصصان بهداشت روانی و اجتماعی و دولتها رابه خود مشغول داشته، مسأله ی بزهکاری می باشد. شناخت کامل پدیده ی بزهکاری و بزهکار، علل وعوامل سقوط یک انسان، چگونگی درمان وی و درنهایت پیشگیری ازبزهکاری ودریک کلام سالم سازی یک جامعه، رسالت عظیم، انسانی ومقدسی می باشد که با بررسی شخصیت مجرم یعنی[ انسانی که تحت شرای...

15 صفحه اول

this study investigated the relationship between quality of work life and organization citizenship behavior from the viewpoint of teachers in high schools in tehran city.

چکیده هدف از پژوهش حاضر بررسی رابطه کیفیت زندگی کاری و رفتار شهروندی سازمانی در مدارس مقطع متوسطه پسرانه شهر تهران از دیدگاه دبیران بود. روش پژوهش حاضر توصیفی و از نوع همبستگی بود. از بین دبیران مدارس شهر تهران تعداد 380 نفر به روش نمونه گیری خوشه ای چند مرحله ای به عنوان نمونه پژوهش انتخاب شدند و با تکمیل پرسشنامه ی کیفیت زندگی کاری والتون(1975) و پرسشنامه ی رفتار شهروندی سازمانی پودساکو...

15 صفحه اول

Airborne fungi isolated from Fortaleza city, State of Ceará, Brazil.

Airbone fungi are considered important causes of allergic rhinitis and allergic asthma. The knowledge of these fungi in a city or region is important for the ecological diagnosis and specific treatment of allergic manifestations induced by inhalation of fungal allergens. The airborne fungi of Fortaleza, State of Ceará, Brazil, were studied during a one year period. Five hundred and twenty Petri...

متن کامل

[Silent neuropathy in patients with leprosy in the city of Fortaleza, Ceará State, Brazil].

One of the clinical forms of Hansen's disease is silent neuropathy, which consists of progressive nerve damage in the absence of pain and hypersensitivity to palpation. This study estimated the proportion of silent neuropathy and associated factors. A cross-sectional study was performed in Fortaleza, Ceará State, Brazil. Patients were asked about the presence of decreased sensation involving to...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Journal of Polymers and The Environment

سال: 2022

ISSN: ['1566-2543', '1572-8919']

DOI: https://doi.org/10.1007/s10924-022-02405-5