隨著城市快速發展，人類對生活用水過度開發，人們能夠獲取干凈的水源越來越少，水污染后，通過飲水或食物鏈，污染物進入人體，對人體是有傷害的，下面我們北京抽污水為大家講解污(wu)水對人體危(wei)害性。

  1、引起急性和(he)慢性中(zhong)(zhong)(zhong)毒(du)(du)(du)(du)。水(shui)體(ti)受化(hua)學有素物(wu)質污(wu)(wu)染后，通(tong)過飲水(shui)和(he)食物(wu)鏈便(bian)可造成中(zhong)(zhong)(zhong)毒(du)(du)(du)(du)，如(ru)甲基汞(gong)中(zhong)(zhong)(zhong)毒(du)(du)(du)(du)(水(shui)俁病)、鎘中(zhong)(zhong)(zhong)毒(du)(du)(du)(du)(骨(gu)痛病)、砷中(zhong)(zhong)(zhong)毒(du)(du)(du)(du)、鉻中(zhong)(zhong)(zhong)毒(du)(du)(du)(du)、農藥中(zhong)(zhong)(zhong)毒(du)(du)(du)(du)、多氯聯苯中(zhong)(zhong)(zhong)毒(du)(du)(du)(du)等，這是水(shui)污(wu)(wu)染對(dui)人(ren)體(ti)健康危(wei)害的主要(yao)方。

  2、致癌作用(yong)。某些有致癌作用(yong)的(de)化學物(wu)(wu)質，如(ru)砷、鉻、鎳、鈹、苯胺(an)和其(qi)它(ta)多環芳(fang)烴等污染水(shui)體(ti)后，可(ke)在水(shui)中懸浮物(wu)(wu)、底(di)泥和水(shui)生(sheng)生(sheng)物(wu)(wu)內(nei)蓄積，長期飲用(yong)這類水(shui)質或食用(yong)這類生(sheng)物(wu)(wu)就可(ke)能誘發癌癥(zheng)。

  3、發(fa)生以水(shui)為(wei)媒介的傳(chuan)染病(bing)(bing)。生活污水(shui)以及制革、屠宰、醫院等(deng)廢(fei)水(shui)污染水(shui)體(ti)，常可引起細菌性腸道傳(chuan)染病(bing)(bing)和某些寄生蟲病(bing)(bing)，如傷寒、痢疾(ji)、霍亂(luan)、腸炎、傳(chuan)染性肝炎和血吸蟲病(bing)(bing)等(deng)。