02455naa a2200373 a 450000100080000000500110000800800410001902200140006002400440007410000200011824501390013826000090027752013680028665000110165465000250166565000150169065000150170565000130172065000200173365000180175365000280177165000210179965000140182065000220183465000120185665000240186865000210189265300250191370000220193870000220196070000240198270000220200677300530202821600152023-12-19       2023    bl uuuu     u00u1 u    #d  a2071-10507 ahttps://doi.org/10.3390/su150869902DOI1 aSCARPARE, F. V.  aLeaching runoff fraction for nitrate and herbicides on sugarcane fieldsbimplications for grey water footprint.h[electronic resource]  c2023  aAbstract: Sugarcane cultivation uses many chemical inputs to ensure good yields, which puts local water resources under pressure. Grey water footprint (GWF) is a widely used indicator of the volume needed to assimilate a pollutant load in a water body. However, the GWF relies on leaching runoff fractions, which are empirically determined. We hypothesize that these fractions might not represent the true magnitude of the Brazilian sugarcane environment and that management practices can further reduce this fraction loaded into the environment. In two field trials, we measure the herbicides and nitrate loaded into the environment through in situ measurements, determine their loss fractions, compare them with some empirical models, calculate the GWF, and estimate the potential for nitrate pollution attenuation with the adoption of split and incorporated nitrogen application. Both hypotheses are confirmed. For nitrate, our results suggest that the leaching runoff fraction used in most GWF studies is overestimated by about two times, impacting the GWF estimation for the Brazilian sugarcane environment. However, the same conclusion was not possible for herbicides due to the low diversity of the analyzed molecules. In addition, the fertilizer management application reduced the nitrate load on the environment, which the GWF did not necessarily detect.  aDiuron  aEnvironmental impact  aHerbicides  aHexazinone  aNitrates  aWater pollution  aWater quality  aWater quality standards  aCana de Açúcar  aHerbicida  aImpacto Ambiental  aNitrato  aPoluição da Água  aRecurso Hídrico  aGrey water footprint1 aZOTELLI, L. do C.1 aBARIZON, R. R. M.1 aCASTRO, S. G. Q. de1 aBEZERRA, A. H. F.  tSustainabilitygv. 15, n. 8, article 6990, 2023.