Legislación
Real Decreto 506/2013, de 28 de junio, sobre productos fertilizantes.
https://www.boe.es/eli/es/rd/2013/06/28/506/con
Directiva 92/43/CEE del Consejo, de 21 de mayo de 1992, relativa a la conservación de los hábitats naturales y de la fauna y flora silvestres
https://eur-lex.europa.eu/legal-content/ES/TXT/?uri=celex:31992L0043
Order of the Federal Agency for Fisheries no. 20 of January 18, 2010 “On approval of water quality standards of reservoirs proposed for fishery including standards of maximum permissible concentrations of hazardous substances in water objects proposed for fishery,” 2010.
https://www.garant.ru/products/ipo/prime/doc/2070984/