温泉水一般含有硫化物,本市地处珠江出海口,与南海相依,暂时开发的两处温泉都是海水温泉,海水温泉还含有大量的氯化物等物质,特别是近年由商业需要发展起来的特色温泉,在温泉水中加入咖啡、药材、过饱和的食盐等,按游泳池水GB/T18204·29-2000的方法进行显色测定,有颜色的水样 The hot spring water generally contains sulfide. The city is located at the mouth of the Pearl River and depends on the South China Sea. Temporarily developed hot springs are both hot springs and seawater hot springs which contain a large amount of chloride and other substances. In particular, commercial hot springs have developed in recent years Hot spring, hot spring water, add coffee, herbs, salt and other over-saturated, according to the swimming pool water GB / T18204 · 29-2000 method of color determination, color water samples