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In: Environmental science and pollution research: ESPR, Band 26, Heft 30, S. 30642-30662
ISSN: 1614-7499
Potentially toxic elements (PTEs) in Chinese agricultural soils, including those in some heritage protection zones, are serious and threaten food safety. Many scientists think that these PTEs may come from parent rock. Hence, at a karst rice-growing agricultural heritage area, Babao town, Guangnan County, Yunnan Province, China, the concentrations of eight PTEs (As, Cd, Cr, Cu, Hg, Ni, Pb, and Zn) were determined in 148 surface soil, 25 rock, and 52 rice grain samples. A principal component analysis (PCA) and hierarchical cluster analysis were used to divide the surface soil into groups, and inverse distance weighting (IDW) was used to analyze the spatial distribution of PTEs. Soil pollution was assessed with the geoaccumulation index (Igeo). The results show that Cd, Hg, Zn, and Cr were polluting the soil (average Igeo > 0). The highest concentration of PTEs was distributed in the southwest of Babao town in the carbonate rock area, which had the highest pH and soil total organic carbon (Corg), Mn, and TFe(2)O(3) contents. PCA biplots of soil samples showed that the carbonate rock area was associated with the most species of PTEs in the study area including Pb, Cd, Hg, As, and Zn. The clastic rock area was associated with Cu and Ni, and the lime and cement plants were associated with CaO, pH, Corg, TC, and aggravated PTE pollution around factories. In high-level PTE areas, rice was planted. Two out of 52 rice grain samples contained Cd and 4 out of 52 rice grain samples had Cr concentrations above the Chinese food safety standard pollutant limit (Cd 0.2 mg/kg; Cr 1 mg/kg). Therefore, the PTEs from parent rocks are already threatening rice safety. The government should therefore plan rice cultivation areas accordingly.
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In: Environmental science and pollution research: ESPR, Band 21, Heft 15, S. 9376-9384
ISSN: 1614-7499
In: Ecotoxicology and environmental safety: EES ; official journal of the International Society of Ecotoxicology and Environmental safety, Band 89, S. 59-65
ISSN: 1090-2414
In: Ecotoxicology and environmental safety: EES ; official journal of the International Society of Ecotoxicology and Environmental safety, Band 165, S. 404-410
ISSN: 1090-2414
In: Ecotoxicology and environmental safety: EES ; official journal of the International Society of Ecotoxicology and Environmental safety, Band 149, S. 241-247
ISSN: 1090-2414
In: Environmental science and pollution research: ESPR, Band 25, Heft 12, S. 11343-11350
ISSN: 1614-7499
In: Environmental science and pollution research: ESPR, Band 24, Heft 3, S. 3131-3141
ISSN: 1614-7499
In: Environmental science and pollution research: ESPR, Band 22, Heft 24, S. 20154-20166
ISSN: 1614-7499
In: Environmental science and pollution research: ESPR, Band 26, Heft 31, S. 32574-32588
ISSN: 1614-7499
In: Environmental science and pollution research: ESPR, Band 24, Heft 33, S. 25899-25911
ISSN: 1614-7499
In: Ecotoxicology and environmental safety: EES ; official journal of the International Society of Ecotoxicology and Environmental safety, Band 159, S. 63-70
ISSN: 1090-2414
In: Environmental science and pollution research: ESPR, Band 31, Heft 42, S. 54887-54904
ISSN: 1614-7499
In: Ecotoxicology and environmental safety: EES ; official journal of the International Society of Ecotoxicology and Environmental safety, Band 196, S. 110542
ISSN: 1090-2414
In: Environmental science and pollution research: ESPR, Band 30, Heft 13, S. 37859-37874
ISSN: 1614-7499
