Occurrence and distribution of nemacur residues in soil, water, and cucumber plant in the middle governorate, Gaza Strip, Palestine

العناوين الأخرى

تواجد و توزيع متبقيات النيماكور في التربة و الماء ونبات الخيار في المحافظة الوسطى، قطاع غزة، فلسطين

مقدم أطروحة جامعية

al-Luh, Muhammad Awdah Hamdan

مشرف أطروحة جامعية

al-Kurdi, Said Mahmud
al-Nahal, Yasir Zaydan

أعضاء اللجنة

Tamus, Hasan Mustafa
al-Agha, Muhammad Ramadan

الجامعة

الجامعة الإسلامية

الكلية

كلية العلوم

القسم الأكاديمي

قسم البيئة و علوم الأرض

دولة الجامعة

فلسطين (قطاع غزة)

الدرجة العلمية

ماجستير

تاريخ الدرجة العلمية

2016

الملخص الإنجليزي

Agricultural activities in the Gaza Strip have been associated with excessive and uncontrolled use of dozens of pesticides.

Application of Nemacur provided good distribution of residues in soil to the plant tissue, and leaching to ground water.

The objectives of this study were to determine the concentration of Nemacur in cucumber fruits, cucumber plants, soil matrix and water filtrate, and to compare methods of Nemacur detection.

Nemacur was applied in cucumber seedlings of different rates (0.0, 0.5F, 1F, 2F).

Plants were irrigated with regular water.

The filtrate water was collected in special bottles.

Cucumber fruit's, plants, water and soil matrix were collected during the study and analyzed for Nemacur concentration.

Chemo-assay and bio-assay methods were used.

Results showed that considerable concentrations of Nemacur were determined in cucumber fruits', cucumber plants, filtrate water and soil matrix.

Concentration of Nemacur was higher in water samples collected from sandy soil(0.0072mg/L) than from clay soil(0.0034mg/L), and the concentrations in sandy soil(0.00023mg/kg),were lower than those in clay soil(0.0013mg/kg).

The concentration in top layer in clay soil 1.87mg/kg was lower than other layers.

And the concentration in cucumber fruits by sandy soil(0.04mg/kg) were lower than those in cucumber fruits by clay soil(0.80mg/kg).

Concentration of Nemacur was higher in cucumber plant by clay soil(2.02mg/kg) than sandy soil(1.3mg/kg).

Nemacur residues does not exist and none of traces in the six random samples by using HPLC technique, were collected randomly from the market.

Chemo-assay techniques determined lower concentration of Nemacur than bioassay techniques.

It can be concludes that considerable concentration of Nemacur was found in all tested samples.

Comparing with maximum residues limits (MRLS), The concentration of Nemacur in various environmental samples less than the maximum residues limits.

Application of Nemacur is a potential health risk.

It is recommended to exclude Nemacur application from cucumber and related crops.

التخصصات الرئيسية

علوم الأرض و المياه و البيئة

عدد الصفحات

58

قائمة المحتويات

• APA
• MLA
• AMA

لغة النص

الإنجليزية

نوع البيانات

رسائل جامعية

رقم السجل

BIM-735362