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Geoscience Letters

Official Journal of the Asia Oceania Geosciences Society (AOGS)

Fig. 4 | Geoscience Letters

Fig. 4

From: Arsenic in the Pearl River Delta and its related waterbody, South China: occurrence and sources, a review

Fig. 4

The occurrence of arsenic in non-ferrous ores in Guangdong Province. The bar charts show the value of As concentration reported divided by the regional average. The regional average of As concentration in river water is 0.46 μg/L (Dongjiang River), 2.63 μg/L (Xijiang River), and 5.46 μg/L (Beijiang River), respectively (Li et al. 2018; Zhen et al. 2016). The average As concentration in sediments is 23.2 mg/kg in the upper, middle, lower reaches of the Pearl River (Han et al. 2019)

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