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https://observatorio.fm.usp.br/handle/OPI/34555
Título: | Edible weeds: Are urban environments fit for foraging? |
Autor(es): | AMATO-LOURENCO, Luis Fernando; RANIERI, Guilherme Reis; SOUZA, Vanessa Cristina de Oliveira; BARBOSA JUNIOR, Fernando; SALDIVA, Paulo Hilario Nascimento; MAUAD, Thais |
Parte de: | SCIENCE OF THE TOTAL ENVIRONMENT, v.698, article ID 133967, 12p, 2020 |
Resumo: | Foraging wild-growing edible plants (WEPs) is a re-emerging practice with increasing popularity worldwide, including in urban areas. However, in cities, this practice raises questions about the safety of foraging these plants for human consumption, due to the potential exposure of plants to higher levels of pollutants. In this study, the concentration of 12 elements (Al, V, Cr, Mn, Co, Ni, Zn, As, Rb, Cd, Ba and Pb) in three different WEPs (Amaranthus spp., Plantago tomentosa and Taraxacum officinale) were determined according to different traffic categories in the municipality of Sao Paulo. Additionally, plants were sampled within the inner areas of three municipal parks in the same study region. Different gradients of elemental concentrations were obtained according to the traffic categories. Freeways presented higher concentrations of several elements than local roads or parks. For the WEPs collected along freeways and some plants along arterial roads, the concentrations of Pb exceeded safety levels for human consumption. Our data suggest that foraging in large urban centres should be performed preferentially in low-traffic areas. |
Aparece nas coleções: | Artigos e Materiais de Revistas Científicas - FM/MPT Artigos e Materiais de Revistas Científicas - HC/InCor Artigos e Materiais de Revistas Científicas - LIM/05 Artigos e Materiais de Revistas Científicas - ODS/11 |
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