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Ali Mohammed Abdel-bari Ba-abbad Alwi Ahmad Alwi Maknoon Yaslam Khaled Yaslam Bin-Zaidan

Abstract

An experimental study was conducted with the aim of using sheep milk as bioindicators of environmental pollution for cadmium, lead and arsenic in some areas of Hadhramout coast in the period from November 2021 to March 2022, 45 samples of milk were collected from five areas of the Hadhramaut coast (Fowah, Al-Ghaleelah Thelah, Shaheer and Al-Khareebah). Cadmium and lead concentrations were measured by (FAAS), while arsenic concentrations were measured by (AAS- MHS 15). The results of study showed that the mean concentrations of cadmium, lead and arsenic in milk samples are 0.0087 ppm, 0.055 ppm and 0.105 ppm; respectively. Concentration of cadmium were higher than the permissible limit according to Europe Union and Codex Alimentarius milk 0.01 ppm in urban areas (Fowah, Al- Ghaleelah, and Shaheer). Lead concentration was found higher than the maximum permissible limit for Europe Union and Codex Alimentarius of lead in milk 0.02 ppm in areas (Fowah, Al- Ghaleelah, and Shaheer).  Arsenic concentration was found higher than the maximum permissible limit for Europe Union and of arsenic in milk 0.1 ppm in Thelah area, While Al-Khareebah area was in maximum permissible limit Europe Union. The statistical results showed that there were significant differences between the average concentrations of cadmium, lead and arsenic at a significant level (p<0.05) in milk samples in the different study areas. This study confirmed that sheep milk are good bioindicators for detecting environmental pollution with heavy metals. The study concluded that the main reason for the high concentrations of cadmium and lead in urban areas are human industrial activities, all process of combustion and industrial and agricultural wastes. The study recommends periodic monitoring and examination of heavy metals in the environment using bioindicators and identifying the main sources of their spread in the environment.

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Keywords

Bioindicator, Cadmium, Lead, Arsenic, Sheep milk, Pollution, Hadhramaut Coast.

Section
Original Article
How to Cite
Ba-abbad, A. M. A.- bari ., Maknoon, A. A. A. ., & Bin-Zaidan, Y. K. Y. . (2024). Detection of milk’s sheep quality indicators by studying the contamination of milk with some heavy metals in some areas of Hadramout Coast – Yemen. Yemeni Journal for Medical Sciences, 18(1), 9–19. https://doi.org/10.20428/yjms.v18i1.2322