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Occurrence of trace elements and antibiotics in manure-based fertilizers from the Zhejiang Province of China

Qian, Mingrong, Wu, Huizhen, Wang, Jianmei, Zhang, Hu, Zhang, Zulin, Zhang, Yongzhi, Lin, Hui, Ma, Junwei
The Science of the total environment 2016 v.559 pp. 174-181
agricultural soils, arsenic, cadmium, chromium, copper, enrofloxacin, fertilizers, fluoroquinolones, lead, mercury, risk, sulfonamides, tetracyclines, zinc, China
The occurrence of seven trace elements and forty three antibiotics was investigated in manure-based fertilizers from the Zhejiang province of China. These trace elements included copper, zinc, arsenic, chromium, mercury, lead and cadmium. The targeted antibiotics included four groups: sulfonamides, tetracyclines, fluoroquinolones and chloramphenicols. The median amounts of copper, zinc, arsenic, chromium, mercury, lead and cadmium in the analyzed samples were 160, 465, 7.9, 21.2, 0.3, 8.1 and 0.6mg·kg−1, respectively. Seventeen antibiotics were detected. Enrofloxacin was the most frequently detected compound, with a detection rate of 39.3% and concentrations ranging from 6.7μg·kg−1 to 4091μg·kg−1. Based on the referred loading rates in agricultural soil, 10% of the collected manure-based fertilizer samples might pose a high potential ecological risk due to the presence of antibiotics.