<prompt> tafadhali geuza maudhui haya ya swahili kwenda kwa kiingereza.katika 2012, wanasayansi wa usgs alisoma fungicides tofauti ya 33 kutumika katika uzalishaji wa viazi na kupatikana angalau fungicide moja katika 75 ya majaribio ya uso wa maji na 58 ya sampuli za maji ya ardhi.  <response>: in 2012, usgs scientists studied 33 different fungicides used in potato production and found at least one fungicide in 75 of surface water and 58 of ground water samples. 