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Arsenic Accumulation, Distribution and Source Analysis of Rice in a Typical Growing Area in North China

Arsenic Accumulation, Distribution and Source Analysis of Rice in a Typical Growing Area in North China

Lihong Wang, Sulian Gao, Xixiang Yin, Xiongjun Yu, Lingyu Luan

Ecotoxicol Environ Saf. 2019 Jan 15;167:429-434.

PMID: 30368136

Abstract:

Rice (Oryza sativa) is believed to be a major source of arsenic (As) exposure in humans, especially in Asia. In this study, As accumulation, distribution and source analysis of rice are investigated in five sites (SZ, QH, XZ, WS and JX) in the Nansi Lake area, an important rice-growing region in north China. Findings show that total As average concentrations were 6.3-13.6 mg kg-1 and 5.5-9.9 μg L-1 in paddy soil and irrigation water, respectively. Inorganic arsenic As(III) and dimethylarsinic acid DMAs(V) were the major speciation in polished rice, with a small proportion of As(V) evident. Notably, the percentage of As(III) increased by 63.9-68.5%. Based on survey data, the addition of total As to farm soil due to fertilizer application was 31.5-11,580 mg per hectare per year. According to the results of Spearman's rank correlation analysis and Principal Component Analysis (PCA), As levels in soil and irrigation water may be important factors influencing As concentration in rice.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
CS353809	Herbicides I - WS			Price

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