Концентрация тяжелых металлов в овощах с ирригационных полей, использующих сточные воды, и потенциальный риск здоровью населения

Файл статьи: 
Иконка PDF health-risk-analysis-2021-1-7.pdf
УДК: 
539.1
DOI: 
10.21668/health.risk/2021.1.07
Авторы: 

А. Фесеха1,2, А.К. Чаубей1, А. Абраха3

Организация: 

1Колледж естественных и информационных наук, Университет Аддис-Абебы, Аддис-Абеба, Эфиопия
2Колледж естественных и информационных наук, Университет Арба Минч, Арба Минч, Эфиопия
3Колледж естественных и информационных наук, Университет Самара, Самара, Эфиопия

Аннотация: 

В данной работе содержится оценка концентраций тяжелых металлов в воде, почве и овощах (листовая свекла, латук, капуста, листовая капуста, помидоры, зеленый перец и морковь), выращиваемых на полях с системой ирригации, в которой используются сточные воды в провинции Гамо, Эфиопия. Образцы почв, воды и овощей были отобраны случайным образом, обработаны и проанализированы на предмет наличия в них тяжелых металлов с помощью атомной абсорбционной спектрометрии.
Полученные результаты показали, что в наиболее высоких средних концентрациях в пробах содержались Cd, Cr и Ni, а Pb, Zn и Cu в ирригационной воде в самых низких концентрациях. Уровни Cd в бассейнах реки Кульфо и озера Чамо, а также уровни Cu в большинстве проб почв также оказались выше референтных значений.
Исследование выявило, что средние уровни Cd в большинстве проб овощей, а также Cr и Pb в некоторых пробах овощей были выше, чем максимально рекомендованные уровни, установленные Всемирной рганизацией здравоохранения, Продовольственной и сельскохозяйственной организацией в 2001 г. Среди овощей самое высокое содержание тяжелых металлов было обнаружено в капусте, листовой свекле, моркови, помидорах, листовой капусте, зеленом перце и латуке. Коэффициент риска здоровью по содержаниям Cd, Cu и Ni, полученный для всех проб овощей, превышал единицу. Это означает, что существует потенциальный риск здоровью потребителей. Наше исследование рекомендует регулярный мониторинг содержания тяжелых металлов в почвах, воде и продуктах питания с целью предотвращения их чрезмерного накопления в пищевой цепочке.

Ключевые слова: 
тяжелые металлы, загрязнение, овощи, коэффициент опасности, оценка риска, безопасность, здоровье человека
Фесеха А., Чаубей А.К., Абраха А. Концентрация тяжелых металлов в овощах с ирригационных полей, использующих сточные воды, и потенциальный риск здоровью населения // Анализ риска здоровью. – 2021. – № 1. – С.68–81. DOI: 10.21668/health.risk/2021.1.07
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Получена: 
29.01.2021
Принята: 
15.03.2021
Опубликована: 
30.03.2021

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