期刊
CATENA
卷 209, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.catena.2021.105843
关键词
Edible plants; Rhizosphere soils; Human health risk assessment; Fogo volcano
资金
- Portuguese Foundation for Science and Technology (FCT) [SFRH/BPD/99636/2014]
- FCT [PTDC/GEOGEO/1123/2014]
- Research Unit GeoBioTec [UID/GEO/04035/2019 + UIDB/04035/2020]
- FCT/MCTES
- FEDER
Volcanic eruptions can have direct and indirect impacts on ecosystems, affecting the soil-plant system and potentially leading to health risks from consuming contaminated plants. A study on Fogo island in Cape Verde Republic found widespread pollution in soil and edible plants, mainly due to mercury and nickel, with potential negative health outcomes linked to arsenic, chromium, copper, and zinc contamination.
Volcanic eruptions disturb directly and indirectly the ecosystems. Direct impact occurs on the soil-plant system with an input of new elements and indirect hazard occurs by consumption of these plants. Fogo island (Cape Verde Republic) has an active volcano and the last eruption occurred in 2014-15, expelling large amounts of materials that spread all over the island. Soils and edible plants were collected all over the island. Pollution indexes reveal contamination in all samples, mostly due to Hg and Ni and with moderate contribution of Co, Cr, Cu and Pb. Mercury is the PTE with higher contribution to the non-carcinogenic hazard quotient, both by soil ingestion and inhalation. Carcinogenic risk exceeds the target risk in all samples with the higher contribution of Ni. Transfer factor from soils to plants decreasing order is Mn > As > Zn > Cr > Cu > Cd > Pb > Ni > Co > Hg, being < 1 except for As and Mn (TF > 1 point to a significant accumulation of elements in edible plants). The hazard risk index and targeted hazard quotient shows that potential negative health outcomes can be induced by As, Cr, Cu, and Zn by consumption of edible plants.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据