Author:
El Awamy Ifdial O.,Abduljalil Ruqayah. A.,Abduljalil Omukalthum A.
Abstract
This study was designed to detect heavy metals (Zn, Cd, Pb, and Cu) in several springs and groundwater wells in the northeastern region of Libya. Samples were collected from different regions in both seasons (dry and wet). An atomic absorption spectrophotometry equipped with Slotted Tube Atomic Trap (STAT) was used. The limit of detection (LOD) was in the range of 0.008 to 0.03 μg mL-1, and the limit of quantification (LOQ) was in the range of 0.02 to 0.09 μg mL-1. % RSD (relative standard deviations) ranged between 0.0001 to 0.329%. Results showed the presence of heavy metal residues in the regions in two seasons (dry-wet) during the study in some springs and groundwater wells. The zinc (Zn), cadmium (Cd), and Copper (Cu) values were below permitted limits, according to the World Health Organization (WHO), Libyan National Center for Standardization (LNCSM), and Food and Agriculture Organization (FAO). Lead (Pb) in the dry season was much higher than the wet season in accordance with WHO and LNCSM. The other values were below permissable limits according to WHO, LNCSM, and FAO. This study’s results show the presence of dangerous levels of lead during the dry season in the groundwater wells on SahlAlmarj I, Alabyar III. Overall, the investigation of chemical and agricultural fertilizers is an effective method of monitoring the quality of drinking water. Such investigations are needed to identify possible sources of contamination of storage tanks and pipelines to ensure the delivery of safe drinking water to end-users.
Publisher
Omar Al-Mukhtar University
Reference31 articles.
1. الكلورينية والعناصر الثقيلة في بعض الخضروات والفاكهة في أسواق المنطقة الشرقية - ليبيا, رسالة الماجستير (الدرجة العليا) في وقاية النبات (كيمياءالمبيدات), جامعة عمر المختار, كلية الزراعة, قسم وقاية النبات.ص1-98
2. Abdolgader, R. E., Hussain, R. A., Hasan, S. M., & Agoub, A. A. (2013). Quantitative Determination of Cd and Pb in Tissues and Organs of Chickens Raised in El-Jabel Alakhder Region—Libya. Food and Nutrition Sciences, 4(08), 763.
3. Ahmad, J. U., & Goni, M. A. (2010). Heavy metal contamination in water, soil, and vegetables of the industrial areas in Dhaka, Bangladesh. Environmental monitoring and assessment, 166(1-4), 347-357.
4. Ahmed, M., Matsumoto, M., Ozaki, A., Thinh, N. V., & Kurosawa, K. (2019). Heavy metal contamination of irrigation water, soil, and vegetables and the difference between dry and wet seasons near a multi-industry zone in Bangladesh. Water, 11(3), 583.
5. APHA. (1995). Standard methods for the examination of water and wastewater. American Public Health Association, American Water Works association, Water Environment Federation, Washington(5), 4-12.