东道海子湖水中苯系物的分析研究
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摘要
本文以新疆古尔班通古特沙漠腹地的东道海子湖水为对象,研究东道海子湖水中苯系物的污染特征,并对湖水中苯系物的潜在生态危害进行分析评价。结果表明:东道海子湖水中苯系物的含量均满足我国水环境质量一级标准,苯的浓度仍然小于我国生活饮用水卫生标准中规定的0.01 mg/L,但经过健康风险评价,发现其仍会对人体产生一定的致癌风险。苯、甲苯、乙苯、邻二甲苯、间二甲苯、对二甲苯的非化学致癌物风险(HQ)值远低于1,表明各类苯系物均无非致癌物的化学风险。
This paper studies the pollution characteristics benzene series in Dongdaohaizi Lake in the hinterland of the Gurbantunggut Desert in Xinjiang, and analyzes and evaluates the potential ecological hazards of benzene series in the lake water. The results show that the content of benzene series in the Dongdaohaizi Lake meets the Level I standard of water environment quality in China. The concentration of benzene is still less than 0.01 mg/L stipulated in the hygienic standard of drinking water in China. However, health risk assessment shows that they still have certain carcinogenic risks to humans. The non-chemical carcinogen risk(HQ) values of benzene, toluene, ethylbenzene, o-xylene, m-xylene and p-xylene are far lower than 1, indicating that none of benzene series has the chemical risks of non-carcinogens.
This paper studies the pollution characteristics benzene series in Dongdaohaizi Lake in the hinterland of the Gurbantunggut Desert in Xinjiang, and analyzes and evaluates the potential ecological hazards of benzene series in the lake water. The results show that the content of benzene series in the Dongdaohaizi Lake meets the Level I standard of water environment quality in China. The concentration of benzene is still less than 0.01 mg/L stipulated in the hygienic standard of drinking water in China. However, health risk assessment shows that they still have certain carcinogenic risks to humans. The non-chemical carcinogen risk(HQ) values of benzene, toluene, ethylbenzene, o-xylene, m-xylene and p-xylene are far lower than 1, indicating that none of benzene series has the chemical risks of non-carcinogens.
引文
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[8] GB11890-89《水质苯系物的测定气相色谱法 》[S]
[9] 姜元媛.采用顶空气相色谱测定废水中苯系物[J].青岛科技大学学报(自然科学版),2015,36(S2):67-69.
[10] 陈全虎.水和废水中苯系物分析方法研究[J].石化技术,1997(02):43-45.
[2]魏恩棋,李利荣,王艳丽,等.顶空-固相微萃取-气相色谱测定水体中痕量苯系物[J].城市环境与城市生态,2010,23(03):41-43+47.
[3] 白洪亮.活性炭吸附法脱除低浓度苯系物的研究[D].大连:大连理工大学,2006.
[4] 姚晓莉.涂料废水中苯系物BTEX的去除途径理论分析及试验研究[D].兰州:兰州大学,2008.
[5] 陈小丽,陈敏,梁春霞.自动顶空毛细管气相色谱法测定水中8种苯系物[J].化学分析计量,2009,18(06):37-39.
[6]杨卫芳,齐峰,李烨,等关于固相萃取技术富集水中苯系物的探讨[J].环境与可持续发展,2013,38(06):138-139.
[7] 刘莹,孙力平,高士奇.吹扫捕集-GC/MS法检测饮用水中十三种常见挥发性有机物[J].环境工程,2011,29(S1):242-244.
[8] GB11890-89《水质苯系物的测定气相色谱法 》[S]
[9] 姜元媛.采用顶空气相色谱测定废水中苯系物[J].青岛科技大学学报(自然科学版),2015,36(S2):67-69.
[10] 陈全虎.水和废水中苯系物分析方法研究[J].石化技术,1997(02):43-45.