Fluorine in 20 vegetable species and 25 lettuce cultivars grown on a contaminated field adjacent to a brick kiln

Wang, Mei; Liu, Lei; Chen, Dan; Hamid, Yasir; Shan, Anqi; Feng, Ying; Song, Yu; Feng, Ying; Yang, Xiaoe

doi:10.1007/s10653-022-01268-y

Cited by 3 publications

(6 citation statements)

References 49 publications

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“…Among them, four leafy vegetables (sweet potato leaves, pakchoi, pumpkin leaves, and pea seedling) had a stronger enrichment ability to fluoride, with median BAF values of 1.40 × 10 −2 , 0.64 × 10 −2 , 0.57 × 10 −2 , and 0.51 × 10 −2 , respectively ( p < 0.05). The different BAF values of vegetables in this study indicate that each variety has a unique response to fluoride contamination; this agrees with the results previously reported by Wang et al [ 40 ]. This disparity could primarily be associated with the physiological traits of diverse vegetables.…”

Section: Resultssupporting

confidence: 93%

“…The risk index of children is higher than that of adults, suggesting their heightened vulnerability to the effects of fluoride pollution. This finding coincides with a study indicating that children face the greatest risks in areas near industrial sites afflicted by fluoride contamination [ 40 ]. The reason may be that children’s physical development, particularly that of the liver and kidneys, which play significant roles in metabolism, is not yet fully matured, rendering them more vulnerable.…”

Section: Resultssupporting

confidence: 92%

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Contamination Status and Ecological Security Thresholds of Fluoride in Farmland around a Phosphorus Chemical Plant in a Karst Area of Southwestern China

Guo

Wang

Dai

et al. 2023

Toxics

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The phosphorus chemical plant (PCP) production process leads to the substantial discharge of fluoride into the surrounding environment. However, there is limited research data regarding the pollution levels and ecological safety thresholds of farmland fluoride around PCPs in karst areas. This study evaluates the local contamination status and health risks by determining the fluoride content in farmland and vegetables in vicinity of a PCP in a karst area of Southwestern China. Farmland ecological security threshold was derived based on the species sensitivity distribution (SSD) model. Results showed that the fluoride contents in the soil ranged from 529.36 to 1496.02 mg kg−1, with the median value of 823.93 mg kg−1, which was higher than the national background value in China (478 mg kg−1) by 172.37%. Fluoride contents in vegetables ranged from 0.01 to 25.21 mg kg−1, with the median value of 1.29 mg kg−1, which was higher than the limits of contaminants in food (1 mg kg−1) by 129.00%, and 53.85% of vegetable samples were contaminated. Leafy vegetables showed a higher tendency of fluoride enrichment compared to non-leafy vegetables. Despite there being no significant health risk to the residents via the intake of vegetables overall, there may be potential health risks from the intake of sweet potato leaves. Based on the SSD model, the ecological safety thresholds of fluoride in local farmland was classified into the suitable for planting category (≤174.13 mg kg−1), safe plant utilization category (174.13–4005.42 mg kg−1), and strict control of planting category (≥4005.42 mg kg−1). These findings will provide valuable insights to facilitate the safe cultivation of local agricultural products and optimize the utilization of soil resources.

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Section: Resultssupporting

confidence: 93%

Section: Resultssupporting

confidence: 92%

Contamination Status and Ecological Security Thresholds of Fluoride in Farmland around a Phosphorus Chemical Plant in a Karst Area of Southwestern China

Guo

Wang

Dai

et al. 2023

Toxics

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“…The increased F − levels in these regions can be ascribed to the prolonged accumulation of F from various sources, such as the extensive utilization of phosphate fertilizers; leaching from F-rich rocks, such as apatite, francolite, muscovite, and biotite; industrial activities; and the presence of aluminum plants and brick kilns in close proximity [37,[97][98][99]. The inhalation of F-containing phosphate dust primarily influences the occurrence of endemic human fluorosis [97,100,101], while the existence of dissolved F − ions, F-metal complexes, and F − dust particles containing HF, SiF 4 , and NaF in the soil-plant system leads to the uptake of F − by plant components, indirectly affecting human health [97,98,102]. Nonetheless, according to Haikel et al [97] and Zhou et al [103], it is asserted that washing crops can reduce the F − content by eliminating the F-containing dust deposited from the atmosphere.…”

Section: Occurrence Of Fluoride In Soil-plant Systemmentioning

confidence: 99%

“…Moreover, Mustofa et al [114] and Dagnaw et al [115] have highlighted that rift valleys, characterized by active tectonic plate movements, volcanic activity, and diverse geological formations, can lead to the enrichment of crops with F − . Several parameters have been identified as contributing factors to increased F − uptake by plants, such as alkaline pH [38,41,101], reduced SOM, higher calcium content [116], and low clay content [37], as well as foliar deposition [98,102]. For instance, in a recent study, Devi et al [106] investigated the F − uptake by different parts of potato plants.…”

Section: Occurrence Of Fluoride In Soil-plant Systemmentioning

confidence: 99%

“…Similarly, Khandare and Rao [120] emphasized adding molybdenum and aluminum, which reduced F − uptake by coriander plants. Additionally, the introduction of aluminum reduces F − uptake by plants by forming the AlF 3 complex [102]. Another aspect that has received limited attention is the influence of seasons on F − accumulation in crops.…”

Section: Occurrence Of Fluoride In Soil-plant Systemmentioning

confidence: 99%

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Uranium and Fluoride Accumulation in Vegetable and Cereal Crops: A Review on Current Status and Crop-Wise Differences

Sachdeva,

Powell,

Nandini

et al. 2023

Sustainability

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Uranium (U) and fluoride (F−) contamination in agricultural products, especially vegetable and cereal crops, has raised serious concerns about food safety and human health on a global scale. To date, numerous studies have reported U and F− contamination in vegetable and cereal crops at local scales, but the available information is dispersed, and crop-wise differences are lacking. This paper reviews the current status of knowledge on this subject by compiling relevant published literatures between 1983 and 2023 using databases such as Scopus, PubMed, Medline, ScienceDirect, and Google Scholar. Based on the median values, F− levels ranged from 0.5 to 177 mg/kg, with higher concentrations in non-leafy vegetables, such as Indian squash “Praecitrullus fistulosus” (177 mg/kg) and cucumber “Cucumis sativus” (96.25 mg/kg). For leafy vegetables, the maximum levels were recorded in bathua “Chenopodium album” (72.01 mg/kg) and mint “Mentha arvensis” (44.34 mg/kg), where more than 50% of the vegetable varieties had concentrations of >4 mg/kg. The concentration of U ranged from 0.01 to 17.28 mg/kg; tubers and peels of non-leafy vegetables, particularly radishes “Raphanus sativus” (1.15 mg/kg) and cucumber “Cucumis sativus” (0.42 mg/kg), contained higher levels. These crops have the potential to form organometallic complexes with U, resulting in more severe threats to human health. For cereal crops (based on median values), the maximum F− level was found in bajra “Pennisetum glaucum” (15.18 mg/kg), followed by chana “Cicer arietinum” (7.8 mg/kg) and split green gram “Vigna mungo” (4.14 mg/kg), while the maximum accumulation of U was recorded for barley “Hordeum vulgare” (2.89 mg/kg), followed by split green gram “Vigna mungo” (0.45 mg/kg). There are significant differences in U and F− concentrations in either crop type based on individual studies or countries. These differences can be explained mainly due to changes in geogenic and anthropogenic factors, thereby making policy decisions related to health and intake difficult at even small spatial scales. Methodologies for comprehensive regional—or larger—policy scales will require further research and should include strategies to restrict crop intake in specified “hot spots”.

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Fluoride stress affects seed germination and seedling growth by altering the morpho-physiology of an African local bean variety

Chahine,

Melito,

Giannini

et al. 2023

Plant Growth Regul

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Increased fluorine pollution represents a serious limitation for the productivity of important crops such as beans. The present study was conducted to detect antagonistic/synergistic ion mobility during seed germination in the presence of F contamination (KF and NaF). NaCl was used as a benchmark. The results showed that germination of Jesca, an African (Tanzania) bean variety, significantly dropped with high F levels (10% KF and 3% NaF). High F levels reduced Jesca growth and decreased root and shoot biomass (by 50% and 95% with KF and NaF, respectively). NaF 200 mg kg−1 had the most depressive effect on the seedling stage. Elevated F levels negatively affected seedling health, revealing toxicity symptoms such as chlorophyll degradation and low photosynthetic activities that degraded after a threshold level of 80 mg kg−1. In addition, an inhibitory effect of F on the mineral status of the seedlings, especially on the Ca content, was observed. An opposite trend of endogenous Ca response to NaCl stress was observed. Indeed, while endogenous Ca content increased with increasing NaCl concentration, it decreased when the F level increased. Therefore, tolerance to F at the germination and seedling stages might be used as a criterion for selecting F-tolerant bean varieties.

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Fluorine in 20 vegetable species and 25 lettuce cultivars grown on a contaminated field adjacent to a brick kiln

Cited by 3 publications

References 49 publications

Contamination Status and Ecological Security Thresholds of Fluoride in Farmland around a Phosphorus Chemical Plant in a Karst Area of Southwestern China

Contamination Status and Ecological Security Thresholds of Fluoride in Farmland around a Phosphorus Chemical Plant in a Karst Area of Southwestern China

Uranium and Fluoride Accumulation in Vegetable and Cereal Crops: A Review on Current Status and Crop-Wise Differences

Fluoride stress affects seed germination and seedling growth by altering the morpho-physiology of an African local bean variety

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