Izindololwane zensimbi engagqwali ziyingxenye ebalulekile ezinhlelweni zamapayipi, ezihlinzeka ngesixazululo esiguquguqukayo nesiqinile sokushintsha indlela ukugeleza koketshezi. Lokhu kufakwa kusetshenziswa kakhulu ezimbonini ezahlukahlukene, kufaka phakathi i-petrochemical, amakhemikhali, ukucubungula ukudla, kanye nemithi, ngenxa yokumelana nokugqwala, amandla aphezulu, nokusebenza kwesikhathi eside. Kulesi sihloko, sizohlola izici, izinhlelo zokusebenza, kanye nezinzuzo zezindololwane zensimbi engagqwali ezinhlelweni zamapayipi.