{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T01:50:57Z","timestamp":1760147457523,"version":"build-2065373602"},"reference-count":23,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2023,2,3]],"date-time":"2023-02-03T00:00:00Z","timestamp":1675382400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100000780","name":"Interreg VA Spain\u2013Portugal Programme (EU)","doi-asserted-by":"publisher","award":["0366_RES2VALHUM_1_P","UMINHO\/BD\/40\/2016","GI-1245","ED431C 2022\/40"],"award-info":[{"award-number":["0366_RES2VALHUM_1_P","UMINHO\/BD\/40\/2016","GI-1245","ED431C 2022\/40"]}],"id":[{"id":"10.13039\/501100000780","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100000780","name":"Operational Programme Norte 2020","doi-asserted-by":"publisher","award":["0366_RES2VALHUM_1_P","UMINHO\/BD\/40\/2016","GI-1245","ED431C 2022\/40"],"award-info":[{"award-number":["0366_RES2VALHUM_1_P","UMINHO\/BD\/40\/2016","GI-1245","ED431C 2022\/40"]}],"id":[{"id":"10.13039\/501100000780","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Conseller\u00eda de Educaci\u00f3n e Ordenaci\u00f3n Universitaria de Galicia (Consolidation of Competitive Groups of Research","award":["0366_RES2VALHUM_1_P","UMINHO\/BD\/40\/2016","GI-1245","ED431C 2022\/40"],"award-info":[{"award-number":["0366_RES2VALHUM_1_P","UMINHO\/BD\/40\/2016","GI-1245","ED431C 2022\/40"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Molecules"],"abstract":"<jats:p>The present work demonstrates the use of Cd2+ as a reactivity probe of the fulvic acids (FAs), humic acids (HAs) and dissolved organic matter (DOM) compost extracts. Significant differences were observed between the extracts, with the HA extract showing the highest reactivity. Comparing the different composts, the largest reactivity variation was again observed for HA then FA and finally DOM extracts. The Cd2+ binding extent was used to calculate the quality of composts and compared with a reference of uncomposted organic fertiliser (FLW), leading to the definition of an operational scale of compost quality. The parameter equivalent mass of fertiliser (mEF) was used for this scale sorted the seven composts from 0.353 to 1.09 kg FLW, for compost of sewage sludge (CSS) and vermicompost of domestic waste (CVDW), respectively. The significance of this parameter was verified through a correlation analysis between binding extent and the effect of compost application on lettuce crop growth in a field trial. The results demonstrate the potentiality of FA and HA extracts as markers of compost bioactivity and the use of Cd2+ as a reactivity probe.<\/jats:p>","DOI":"10.3390\/molecules28031503","type":"journal-article","created":{"date-parts":[[2023,2,6]],"date-time":"2023-02-06T01:35:13Z","timestamp":1675647313000},"page":"1503","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Developing a Compost Quality Index (CQI) Based on the Electrochemical Quantification of Cd (HA) Reactivity"],"prefix":"10.3390","volume":"28","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9000-3752","authenticated-orcid":false,"given":"Ana C.","family":"Silva","sequence":"first","affiliation":[{"name":"Department of Chemistry, Centre of Chemistry, Campus Gualtar, University of Minho, 4710-057 Braga, Portugal"},{"name":"CRETUS, Department of Physical Chemistry, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain"}]},{"given":"Pedro","family":"Rocha","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Centre of Chemistry, Campus Gualtar, University of Minho, 4710-057 Braga, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2415-6056","authenticated-orcid":false,"given":"Dulce","family":"Geraldo","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Centre of Chemistry, Campus Gualtar, University of Minho, 4710-057 Braga, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0822-8248","authenticated-orcid":false,"given":"Ana","family":"Cunha","sequence":"additional","affiliation":[{"name":"Department of Biology, Centre of Molecular and Environmental Biology (CBMA), Campus de Gualtar, University of Minho, 4710-057 Braga, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9604-4635","authenticated-orcid":false,"given":"Juan","family":"Antelo","sequence":"additional","affiliation":[{"name":"CRETUS, Department of Soil Science and Agricultural Chemistry, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7925-9733","authenticated-orcid":false,"given":"Jos\u00e9 P.","family":"Pinheiro","sequence":"additional","affiliation":[{"name":"Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), Universit\u00e9 de Lorraine\/ CNRS, UMR 7360, F54501 Vandoeuvre-l\u00e8s-Nancy, France"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0079-6470","authenticated-orcid":false,"given":"Sarah","family":"Fiol","sequence":"additional","affiliation":[{"name":"CRETUS, Department of Physical Chemistry, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0106-2089","authenticated-orcid":false,"given":"F\u00e1tima","family":"Bento","sequence":"additional","affiliation":[{"name":"Department of Chemistry, Centre of Chemistry, Campus Gualtar, University of Minho, 4710-057 Braga, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2023,2,3]]},"reference":[{"key":"ref_1","unstructured":"Dubois, M., Sims, E., Moerman, T., Watson, D., Bauer, B., Bel, J.B., Mehlhart, G., European Commission, and Directorate-General for Environment (2020). 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