FIELD RAPID SCREENING TECHNOLOGY DRIVEN SOIL SAMPLING OPTIMIZATION

HU Qing; TONG Li-zhi; WANG Hong; GUO Rui-cheng; YANG Gang-ting; XU Sheng-bin

doi:10.13205/j.hjgc.202012027

Volume 38 Issue 12

Apr. 2021

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2020 > 38(12): 163-167,172

HU Qing, TONG Li-zhi, WANG Hong, GUO Rui-cheng, YANG Gang-ting, XU Sheng-bin. FIELD RAPID SCREENING TECHNOLOGY DRIVEN SOIL SAMPLING OPTIMIZATION[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(12): 163-167,172. doi: 10.13205/j.hjgc.202012027

Citation:

HU Qing, TONG Li-zhi, WANG Hong, GUO Rui-cheng, YANG Gang-ting, XU Sheng-bin. FIELD RAPID SCREENING TECHNOLOGY DRIVEN SOIL SAMPLING OPTIMIZATION[J]. ENVIRONMENTAL ENGINEERING , 2020, 38(12): 163-167,172. doi: 10.13205/j.hjgc.202012027

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FIELD RAPID SCREENING TECHNOLOGY DRIVEN SOIL SAMPLING OPTIMIZATION

doi: 10.13205/j.hjgc.202012027

1. Guangdong Provincial key Laboratory of Soil and Groundwater Pollution Control, School of Environmental Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China;
2. School of Environment, Harbin Institute of Technology, Harbin 150090, China

Received Date: 2019-12-10
Available Online: 2021-04-23

Abstract

Abstract

A rational soil sampling approach is critical to accurately characterizing potentially contaminated sites. Rapid element screening was applied to a case study for a chromium-contaminated site in Hunan Province. The results were processed by four spatial interpolation methods, including inverse distance weighted (IDW), ordinary kriging (OK), local polynomial interpolation (LPI), and radial basis function (RBF) methods, aiming to compare their accuracy and feasibility on predicting contaminated area. Then, the redundancy analysis was leveraged to determine the number of samples collected for laboratory evaluation. Finally, the results of spatial interpolation between field rapid screening and laboratory analysis were compared. The findings were as follows: 1) the results of predicted contaminated area evaluated by four spatial interpolation methods were significantly different, the accuracy decreased in the qequence of IDW > RBF > OK > LPI; 2) the number of sampling locations needed for laboratory analysis decreased from 245 to 113; and 3) the rapid screening technology was effective in evaluating contamination distribution for chromium-contaminated sites.
- soil contamination,
- chromium,
- rapid screening technology,
- spatial interpolation,
- sampling approach

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References(27)

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