家庭(ting)用(yong)水(shui)(shui)污(wu)(wu)(wu)(wu)(wu)染(ran)(ran)的原因(yin)主要包括水(shui)(shui)源污(wu)(wu)(wu)(wu)(wu)染(ran)(ran)、自來(lai)水(shui)(shui)余氯(lv)殘(can)留以(yi)及自來(lai)水(shui)(shui)運(yun)(yun)輸(shu)(shu)管道污(wu)(wu)(wu)(wu)(wu)染(ran)(ran)等等。這(zhe)(zhe)三(san)個(ge)是(shi)飲(yin)用(yong)水(shui)(shui)污(wu)(wu)(wu)(wu)(wu)染(ran)(ran)最主要的途徑，其(qi)中尤其(qi)是(shi)水(shui)(shui)源污(wu)(wu)(wu)(wu)(wu)染(ran)(ran)以(yi)及運(yun)(yun)輸(shu)(shu)管道污(wu)(wu)(wu)(wu)(wu)染(ran)(ran)，這(zhe)(zhe)兩個(ge)污(wu)(wu)(wu)(wu)(wu)染(ran)(ran)是(shi)現在不可(ke)避(bi)(bi)免。這(zhe)(zhe)是(shi)由于(yu)通常水(shui)(shui)源污(wu)(wu)(wu)(wu)(wu)染(ran)(ran)是(shi)由于(yu)工業用(yong)水(shui)(shui)，農業用(yong)水(shui)(shui)等排污(wu)(wu)(wu)(wu)(wu)處(chu)理沒(mei)做好的原因(yin)，而自來(lai)水(shui)(shui)運(yun)(yun)輸(shu)(shu)管道污(wu)(wu)(wu)(wu)(wu)染(ran)(ran)則是(shi)由于(yu)我(wo)們的自來(lai)水(shui)(shui)是(shi)經(jing)過(guo)漫(man)長(chang)的高樓水(shui)(shui)塔、水(shui)(shui)箱等設施，在這(zhe)(zhe)個(ge)運(yun)(yun)輸(shu)(shu)當中不可(ke)避(bi)(bi)免地(di)會有一些(xie)污(wu)(wu)(wu)(wu)(wu)染(ran)(ran)物(wu)，這(zhe)(zhe)些(xie)污(wu)(wu)(wu)(wu)(wu)染(ran)(ran)物(wu)互(hu)相作用(yong)之后，就會產生一些(xie)有毒的化學物(wu)質。