Derivation of soil Pb/Cd/As thresholds for safety of vegetable planting: A case study for pakchoi in Guangdong Province, China
Regional guidelines for soil heavy metals, in conjunction with specific crops, are proposed to better assess soil environmental quality. In this study, large amounts of soils with different levels of Pb/Cd/As pollution were collected in Guangdong Province, China, to carry out a pot experiment, which...
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KeAi Communications Co., Ltd.
2019-01-01
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| Series: | Journal of Integrative Agriculture |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2095311918619756 |
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| author | Fu-rong LI Dian WEN Fu-hua WANG Fang-fang SUN Xu WANG Ying-qiong DU Xiang-xiang LIU Kai WAN |
| author_facet | Fu-rong LI Dian WEN Fu-hua WANG Fang-fang SUN Xu WANG Ying-qiong DU Xiang-xiang LIU Kai WAN |
| author_sort | Fu-rong LI |
| collection | DOAJ |
| description | Regional guidelines for soil heavy metals, in conjunction with specific crops, are proposed to better assess soil environmental quality. In this study, large amounts of soils with different levels of Pb/Cd/As pollution were collected in Guangdong Province, China, to carry out a pot experiment, which was closer to the actual situation and properties of the heavy metal contaminated soils. Taking the widely planted vegetable pakchoi as the research object, we analyzed the correlations between the Pb/Cd/As concentrations in pakchoi and the total or available soil Pb/Cd/As concentrations and established their optimal regression equations. And then, the total and available soil Pb/Cd/As thresholds for pakchoi were calculated according to the allowable Pb/Cd/As limits in pakchoi and were compared with the current soil assessment standards. Furthermore, a lot of paired vegetable-soil samples in field were collected and their pollution situations were assessed by both the current limit thresholds and the calculated thresholds. Obviously, it was more consistent to assess the Cd and As pollution situation of the vegetable and soil samples with the calculated soil thresholds than the current soil assessment thresholds. It further proved that it was necessary to explore the soil heavy metal thresholds for safety of vegetable in specific regions, which would be more scientific and practical to guide safety production of local agricultural products and effective utilization of soil resources. |
| format | Article |
| id | doaj-art-d7f8ca86aae34763a516de8b5a2d0b56 |
| institution | Kabale University |
| issn | 2095-3119 |
| language | English |
| publishDate | 2019-01-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Journal of Integrative Agriculture |
| spelling | doaj-art-d7f8ca86aae34763a516de8b5a2d0b562025-08-20T03:58:54ZengKeAi Communications Co., Ltd.Journal of Integrative Agriculture2095-31192019-01-0118117918910.1016/S2095-3119(18)61975-6Derivation of soil Pb/Cd/As thresholds for safety of vegetable planting: A case study for pakchoi in Guangdong Province, ChinaFu-rong LI0Dian WEN1Fu-hua WANG2Fang-fang SUN3Xu WANG4Ying-qiong DU5Xiang-xiang LIU6Kai WAN7Correspondence LI Fu-rong, Tel/Fax: +86-20-85161203; Public Monitoring Center for Agro-product of Guangdong Academy of Agricultural Sciences/Key Laboratory of Testing and Evaluation for Agro-product Safety and Quality, Ministry of Agriculture/Laboratory of Quality & Safety Risk Assessment for Agro-product (Guangzhou), Ministry of Agriculture, Guangzhou 510640, P.R.ChinaPublic Monitoring Center for Agro-product of Guangdong Academy of Agricultural Sciences/Key Laboratory of Testing and Evaluation for Agro-product Safety and Quality, Ministry of Agriculture/Laboratory of Quality & Safety Risk Assessment for Agro-product (Guangzhou), Ministry of Agriculture, Guangzhou 510640, P.R.ChinaCorrespondence WANG Fu-hua, Tel/Fax: +86-20-85161062; Public Monitoring Center for Agro-product of Guangdong Academy of Agricultural Sciences/Key Laboratory of Testing and Evaluation for Agro-product Safety and Quality, Ministry of Agriculture/Laboratory of Quality & Safety Risk Assessment for Agro-product (Guangzhou), Ministry of Agriculture, Guangzhou 510640, P.R.ChinaPublic Monitoring Center for Agro-product of Guangdong Academy of Agricultural Sciences/Key Laboratory of Testing and Evaluation for Agro-product Safety and Quality, Ministry of Agriculture/Laboratory of Quality & Safety Risk Assessment for Agro-product (Guangzhou), Ministry of Agriculture, Guangzhou 510640, P.R.ChinaPublic Monitoring Center for Agro-product of Guangdong Academy of Agricultural Sciences/Key Laboratory of Testing and Evaluation for Agro-product Safety and Quality, Ministry of Agriculture/Laboratory of Quality & Safety Risk Assessment for Agro-product (Guangzhou), Ministry of Agriculture, Guangzhou 510640, P.R.ChinaPublic Monitoring Center for Agro-product of Guangdong Academy of Agricultural Sciences/Key Laboratory of Testing and Evaluation for Agro-product Safety and Quality, Ministry of Agriculture/Laboratory of Quality & Safety Risk Assessment for Agro-product (Guangzhou), Ministry of Agriculture, Guangzhou 510640, P.R.ChinaPublic Monitoring Center for Agro-product of Guangdong Academy of Agricultural Sciences/Key Laboratory of Testing and Evaluation for Agro-product Safety and Quality, Ministry of Agriculture/Laboratory of Quality & Safety Risk Assessment for Agro-product (Guangzhou), Ministry of Agriculture, Guangzhou 510640, P.R.ChinaPublic Monitoring Center for Agro-product of Guangdong Academy of Agricultural Sciences/Key Laboratory of Testing and Evaluation for Agro-product Safety and Quality, Ministry of Agriculture/Laboratory of Quality & Safety Risk Assessment for Agro-product (Guangzhou), Ministry of Agriculture, Guangzhou 510640, P.R.ChinaRegional guidelines for soil heavy metals, in conjunction with specific crops, are proposed to better assess soil environmental quality. In this study, large amounts of soils with different levels of Pb/Cd/As pollution were collected in Guangdong Province, China, to carry out a pot experiment, which was closer to the actual situation and properties of the heavy metal contaminated soils. Taking the widely planted vegetable pakchoi as the research object, we analyzed the correlations between the Pb/Cd/As concentrations in pakchoi and the total or available soil Pb/Cd/As concentrations and established their optimal regression equations. And then, the total and available soil Pb/Cd/As thresholds for pakchoi were calculated according to the allowable Pb/Cd/As limits in pakchoi and were compared with the current soil assessment standards. Furthermore, a lot of paired vegetable-soil samples in field were collected and their pollution situations were assessed by both the current limit thresholds and the calculated thresholds. Obviously, it was more consistent to assess the Cd and As pollution situation of the vegetable and soil samples with the calculated soil thresholds than the current soil assessment thresholds. It further proved that it was necessary to explore the soil heavy metal thresholds for safety of vegetable in specific regions, which would be more scientific and practical to guide safety production of local agricultural products and effective utilization of soil resources.http://www.sciencedirect.com/science/article/pii/S2095311918619756heavy metal pollutionavailable contentsoil thresholdcorrelation analysisvegetable |
| spellingShingle | Fu-rong LI Dian WEN Fu-hua WANG Fang-fang SUN Xu WANG Ying-qiong DU Xiang-xiang LIU Kai WAN Derivation of soil Pb/Cd/As thresholds for safety of vegetable planting: A case study for pakchoi in Guangdong Province, China Journal of Integrative Agriculture heavy metal pollution available content soil threshold correlation analysis vegetable |
| title | Derivation of soil Pb/Cd/As thresholds for safety of vegetable planting: A case study for pakchoi in Guangdong Province, China |
| title_full | Derivation of soil Pb/Cd/As thresholds for safety of vegetable planting: A case study for pakchoi in Guangdong Province, China |
| title_fullStr | Derivation of soil Pb/Cd/As thresholds for safety of vegetable planting: A case study for pakchoi in Guangdong Province, China |
| title_full_unstemmed | Derivation of soil Pb/Cd/As thresholds for safety of vegetable planting: A case study for pakchoi in Guangdong Province, China |
| title_short | Derivation of soil Pb/Cd/As thresholds for safety of vegetable planting: A case study for pakchoi in Guangdong Province, China |
| title_sort | derivation of soil pb cd as thresholds for safety of vegetable planting a case study for pakchoi in guangdong province china |
| topic | heavy metal pollution available content soil threshold correlation analysis vegetable |
| url | http://www.sciencedirect.com/science/article/pii/S2095311918619756 |
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