沈阳市自来水中的烷基酚类污染物

Alkyl Pheols in Tap Water in Shenyang

目的了解沈阳市自来水中环境雌激素类污染物———烷基酚类物质的污染现状。方法采用固相萃取、气相色谱-质谱仪联机离子选择性检测方法,于2002-2003年测定沈阳市自来水厂21份出厂水样中的烷基酚类污染物。结果沈阳市自来水中烷基酚类污染物主要是4-t-辛基苯酚、壬基苯酚和双酚A,最高浓度分别为690.5ng/L(范围:29.5～690.5ng/L)、2791.6ng/L(范围:212.1～2791.6ng/L)和161.0ng/L(范围:14.7～161.0ng/L)。水厂之间自来水中烷基酚类污染物的种类和浓度具有明显的差异,同一个水厂出厂水中的烷基酚类污染物存在季节性差异。结论沈阳市自来水中烷基酚类污染应引起重视,并采取必要的措施保护人群饮水安全。

Objective To observe the pollution states of environmental estrogen-alkyl pheols in tap water of Shenyang. Methods With solid phase extraction and gas chromatography/mass spectroscope (GC/MS) ionic selective methods, the concentration of pollutants of alkyl pheols were measured in 21 tap water samples of water works of Shenyang. Results The main pollutants of alkyl pheols in tap water of water works in Shenyang were 4-t-octyl phenol, nonyl phenol and bisphenol A. The respective maximum concentration was 690.5 ng/L (ranged 29.5-690.5 ng/L), 2 791.6 ng/L (ranged 212.1-2 791.6 ng/L) and 161.0 ng/L (ranged 14.7-161.0 ng/L). The varieties and concentrations of pollutants of alkyl pheols showed a significant difference among water samples from different water works and the seasonal changing of them was demonstrated in the waters made in the same water works. Conclusion The problem on the drinking water contamination with alkyl pheols in Shenyang should be paid more attention by government.