@article{fdi:010088628,
  title = {{R}ecycling wastes to mitigate trace elements contamination in plants : a new horizon for urban agriculture in polluted soils},
  author = {{B}arbillon, {A}. and {L}erch, {T}. {Z}. and {A}raujo, {J}. {H}. {R}. and {M}anouchehri, {N}. and {R}obain, {H}enri and {P}ando, {A}nne and {C}ambier, {P}. and {N}old, {F}. and {B}esan{\c{c}}on, {S}. and {A}ubry, {C}.},
  editor = {},
  language = {{ENG}},
  abstract = {{U}rban agriculture development often faces the problem of soil pollution. {S}oil engineering consisting in the addition over polluted soils of a top layer made of recycled wastes is a promising solution. {T}his study was co-constructed with urban farmers and aimed at testing in situ the feasibility of growing vegetables safe for consumption in substrates consisting of organic and inorganic waste, directly overlaying soil polluted by trace elements ({TE}). {T}wo plants were tested: radishes and tomatoes. {T}hree substrates were tested: 1) sheep manure mixed with composted ramial chipped wood ({SHW}); 2) biowaste compost mixed with mushroom compost and ramial chipped wood ({BMW}); and 3) deep excavated subsoils mixed with green waste compost ({EXC}). {O}nly radishes grown in {EXC} presented levels of {TE} below the threshold values. {F}or all the other cases, cadmium levels were above the threshold values. {T}his result concerning plant contamination by {TE} is consistent with a contamination of {SHW} and {BMW} substrates by the polluted soil underneath. {EXC} contained lower {TE} content, suggesting that mineral materials limited the transfer from the polluted soil towards the substrate overlay. {W}e concluded that adding a combination of mineral and organic waste on top of polluted soils may better mitigate vegetables contamination than adding only organic waste. {H}owever, this result was not observed for all tested vegetables. {M}ore research is needed to evaluate the best substrate candidate and its adequate thickness, to study its physico-chemical evolution over a longer period of time and to test a larger panel of vegetables.},
  keywords = {trace elements ; urban agriculture ; soil pollution ; constructed ; {T}echnosols ; urban waste},
  booktitle = {},
  journal = {{F}rontiers in {S}oil {S}cience},
  volume = {3},
  numero = {},
  pages = {1163356 [9 ]},
  year = {2023},
  DOI = {10.3389/fsoil.2023.1163356},
  URL = {https://www.documentation.ird.fr/hor/fdi:010088628},
}