International Journal of Analytical Chemistry / 2015 / Article / Tab 3

Research Article

Risk Assessment and Prediction of Heavy Metal Pollution in Groundwater and River Sediment: A Case Study of a Typical Agricultural Irrigation Area in Northeast China

Table 3

Distribution area of As at different concentration ranges in different years with addition of a pollution source.

Time (year)Distribution area (km2)
> 1.0 μg/L > 1.5 μg/L > 2.25 μg/L > 3.5 μg/L > 4.25 μg/L

0295.0942.0424.884.633.83
1242.7543.2125.694.673.84
2220.0144.0626.534.763.89
3212.7345.0127.523.513.99
5228.1450.2830.6513.384.77
10135.8035.9527.3114.243.23

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