上海市閔行區(qū)居民供水系統(tǒng)中揮發(fā)性有機(jī)物分析
發(fā)布時間：2018-11-01 14:19
【摘要】：目的調(diào)查上海市閔行區(qū)以黃浦江和青草沙水庫為水源的居民供水系統(tǒng)中揮發(fā)性有機(jī)物(volatile organic compound,VOC)的污染狀況。方法于2016年2月(枯水期)和8月(豐水期),采集為閔行區(qū)居民供水的黃浦江和青草沙水庫水源水、出廠水及末梢水樣品共126份,使用吹掃捕集-氣相色譜-質(zhì)譜聯(lián)用法對86種VOC進(jìn)行定性和定量測定。結(jié)果以黃浦江和青草沙為水源的供水系統(tǒng)檢出VOC分別為32種和28種,屬于美國環(huán)境保護(hù)署(EPA)優(yōu)先控制污染物的分別為19種和21種,有中國國家衛(wèi)生標(biāo)準(zhǔn)限值要求的分別為18種和14種。檢出物含量分別在0.04~213μg/L和0.04~728μg/L范圍內(nèi);黃浦江水源除甲基叔丁基醚外,其他均處于較低濃度水平,青草沙水源除部分樣本中二氯甲烷和1,2-二氯乙烷超過衛(wèi)生標(biāo)準(zhǔn)限值以外,其他有限值要求污染物均未超過限值,檢出物質(zhì)以一氯甲烷和甲基叔丁基醚濃度最高。兩個供水系統(tǒng)中VOC均以鹵代脂肪烴和芳香族化合物為主,但包含的化合物種類、數(shù)量卻各有不同;鹵代脂肪烴在兩者檢出的VOC中分別占37.5%和56.2%,芳香族化合物分別占64.3%和28.6%。兩個供水系統(tǒng)均檢出相同的5種消毒副產(chǎn)物(disinfection by-product,DBP),除三溴甲烷外,二氯甲烷、三氯甲烷、一溴二氯甲烷、二溴一氯甲烷在青草沙供水系統(tǒng)中濃度顯著高于黃浦江供水系統(tǒng);除二氯甲烷外,其他物質(zhì)濃度變化均為末梢水出廠水水源水。結(jié)論閔行區(qū)兩個供水系統(tǒng)水源水、出廠水和末梢水中均存在VOC污染,且污染特征不同,部分不在國家衛(wèi)生標(biāo)準(zhǔn)范圍內(nèi)的VOC檢出污染物應(yīng)當(dāng)在今后水質(zhì)監(jiān)測中引起足夠重視。
[Abstract]:Objective to investigate the pollution of volatile organic compounds (volatile organic compound,VOC) in water supply system of residents with Huangpu River and Qingcaosha Reservoir in Minhang District, Shanghai. Methods in February (dry season) and August (abundant water season), 126 samples of water from Huangpu River and Qingcaosha Reservoir, which supplied water to residents in Minhang District, were collected. 86 VOC species were determined qualitatively and quantitatively by purging and trapping-gas chromatography-mass spectrometry. Results there were 32 species of VOC and 28 species of VOC in the water supply system of Huangpu River and Qingcao Sand, and 19 species and 21 species of pollutants under the priority control of (EPA) of the United States Environmental Protection Agency, respectively. There are 18 kinds and 14 kinds of national health standard limit values in China. The contents of the detected compounds were in the range of 0.04 ~ 213 渭 g / L and 0.04 ~ 728 渭 g / L, respectively. With the exception of methyl tert-Ding Ji ether, the water source of Huangpu River is at a lower concentration level. Except for some samples, except for dichloromethane and 1h2- dichloroethane in some samples, the other limited values require pollutants to not exceed the limits. The highest concentrations of monochloromethane and methyl tert-Ding Ji ether were detected. Halogenated aliphatic hydrocarbons and aromatic compounds are the main components of VOC in the two water supply systems, but the number of compounds is different. Halogenated aliphatic hydrocarbons accounted for 37.5% and 56.2% of VOC, and aromatic compounds accounted for 64.3% and 28.662%, respectively. The same five disinfection by-products (disinfection by-product,DBP) were detected in both water supply systems, except for tribromomethane, dichloromethane, trichloromethane, monobromodichloromethane, and bromodichloromethane. The concentration of dichloromethane in the Qingcaosha water supply system was significantly higher than that in the Huangpu River water supply system. With the exception of dichloromethane, the change of other substance concentration was the source water of the terminal water. Conclusion there is VOC pollution in source water, factory water and terminal water of two water supply systems in Minhang District, and the pollution characteristics are different. Some of the pollutants detected by VOC which are not within the scope of national hygienic standard should be paid enough attention to in the future water quality monitoring.
【作者單位】： 上海市閔行區(qū)疾病預(yù)防控制中心;復(fù)旦大學(xué)公共衛(wèi)生學(xué)院公共衛(wèi)生安全教育部重點(diǎn)實(shí)驗(yàn)室;
【基金】：上海市閔行區(qū)自然科學(xué)研究課題(2014MHZ043) 上海市研究生教育創(chuàng)新計劃~~
【分類號】：R123.1
本文編號：2304171
[Abstract]:Objective to investigate the pollution of volatile organic compounds (volatile organic compound,VOC) in water supply system of residents with Huangpu River and Qingcaosha Reservoir in Minhang District, Shanghai. Methods in February (dry season) and August (abundant water season), 126 samples of water from Huangpu River and Qingcaosha Reservoir, which supplied water to residents in Minhang District, were collected. 86 VOC species were determined qualitatively and quantitatively by purging and trapping-gas chromatography-mass spectrometry. Results there were 32 species of VOC and 28 species of VOC in the water supply system of Huangpu River and Qingcao Sand, and 19 species and 21 species of pollutants under the priority control of (EPA) of the United States Environmental Protection Agency, respectively. There are 18 kinds and 14 kinds of national health standard limit values in China. The contents of the detected compounds were in the range of 0.04 ~ 213 渭 g / L and 0.04 ~ 728 渭 g / L, respectively. With the exception of methyl tert-Ding Ji ether, the water source of Huangpu River is at a lower concentration level. Except for some samples, except for dichloromethane and 1h2- dichloroethane in some samples, the other limited values require pollutants to not exceed the limits. The highest concentrations of monochloromethane and methyl tert-Ding Ji ether were detected. Halogenated aliphatic hydrocarbons and aromatic compounds are the main components of VOC in the two water supply systems, but the number of compounds is different. Halogenated aliphatic hydrocarbons accounted for 37.5% and 56.2% of VOC, and aromatic compounds accounted for 64.3% and 28.662%, respectively. The same five disinfection by-products (disinfection by-product,DBP) were detected in both water supply systems, except for tribromomethane, dichloromethane, trichloromethane, monobromodichloromethane, and bromodichloromethane. The concentration of dichloromethane in the Qingcaosha water supply system was significantly higher than that in the Huangpu River water supply system. With the exception of dichloromethane, the change of other substance concentration was the source water of the terminal water. Conclusion there is VOC pollution in source water, factory water and terminal water of two water supply systems in Minhang District, and the pollution characteristics are different. Some of the pollutants detected by VOC which are not within the scope of national hygienic standard should be paid enough attention to in the future water quality monitoring.
【作者單位】： 上海市閔行區(qū)疾病預(yù)防控制中心;復(fù)旦大學(xué)公共衛(wèi)生學(xué)院公共衛(wèi)生安全教育部重點(diǎn)實(shí)驗(yàn)室;
【基金】：上海市閔行區(qū)自然科學(xué)研究課題(2014MHZ043) 上海市研究生教育創(chuàng)新計劃~~
【分類號】：R123.1
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