Abstract：According to the participations of laboratories in proficiency testing projects for the detection of heavy metals (including Ni, Cu, Zn, Pb, Cd, Cr, Hg and As) in soil from 2013 to 2018, the evaluation results of the detection of heavy metal elements as well as the corresponding standards and detection methods were comprehensively compared. The level and development trend for the detection of heavy metals in soil in China were analyzed. The results showed that from 2013 to 2018, the detection level of laboratories for heavy metal detection in soil increased year by year in China. Meanwhile, the dissatisfaction rate of evaluation results of participating in proficiency test decreased from 8.6% in 2013 to 3.8% in 2018. The average satisfactory rate of accredited laboratory proficiency testing was 92.9%, and the average satisfaction rate of non-accredited laboratories was 88.3%. The detection standards used in laboratories were mainly national standards and environmental standards, which were employed in 57% and 20% of laboratories, respectively. Secondly, the industrial standards such as geology, urban construction and agriculture were used. Moreover, the adoption of international standards showed gradually increasing trend and the proportion was up to 4%.
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PANG Xi-bin, LI Yin-yan, TANG Ling-tian. Viewing the detection of heavy metals in soil in China from the results of proficiency testing. , 2019, 39(12): 38-44.
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