大遼河表層水中鄰苯二甲酸酯分布特征及環(huán)境健康風(fēng)險評價
發(fā)布時間：2018-10-20 11:41
【摘要】：利用氣相色譜-質(zhì)譜(GC-MS)檢測了大遼河表層水中鄰苯二甲酸酯類(PAEs)有機污染物的濃度水平,分析其分布特征,并對PAEs類有機污染物的環(huán)境健康風(fēng)險進行了評價。結(jié)果表明,大遼河表層水中共檢出4種PAEs,其質(zhì)量濃度范圍為n.d.#0.754μg·L~(-1)。4種PAEs類中質(zhì)量濃度平均值最高的為鄰苯二甲酸二異辛酯(DIOP)(0.36μg·L~(-1)),最低的為鄰苯二甲酸二甲酯(DMP)(0.01μg·L~(-1))。4種PAEs濃度貢獻大小依次為:鄰苯二甲酸二異辛酯(DIOP)、鄰苯二甲酸二丁酯(DBP)、鄰苯二甲酸二乙酯(DEP)、鄰苯二甲酸二甲酯(DMP)。DBP濃度基本符合國家地表水環(huán)境質(zhì)量標準(GB3838—2002)。與國內(nèi)其他水域相比,大遼河表層水中PAEs的污染程度處于較低水平。DMP和DEP的最高值均出現(xiàn)在營口市區(qū)最主要的工業(yè)和生活污水排污口之一——紗廠潮溝采樣點,DBP和DIOP的最高值則分別出現(xiàn)在牛莊大橋和港監(jiān)潮溝采樣點。總PAEs類有機污染物分布趨勢為:在工業(yè)分布較多的區(qū)域及主城區(qū)附近水域PAEs濃度較高,大遼河上游區(qū)域PAEs濃度相對較低。利用US EPA健康風(fēng)險評估模型粗略估算,大遼河表層水中PAEs類污染物的非致癌風(fēng)險指數(shù)值低于1。
[Abstract]:Gas chromatography-mass spectrometry (GC-MS) was used to detect the concentration of phthalate ester (PAEs) organic pollutants in the surface water of Daliaohe River, and to analyze their distribution characteristics, and to evaluate the environmental health risk of PAEs organic pollutants. The results show that Four kinds of PAEs, were detected in the surface water of Daliaohe River, and their mass concentration ranges from n.d.#0.754 渭 g / L ~ (-1) to n.d.#0.754 渭 g / L ~ (-1). The highest average mass concentration of (DIOP) (0.36 渭 g / L ~ (-1), of diisooctyl phthalate (DIOP) (0.36 渭 g / L ~ (-1),) was the lowest of the four PAEs concentrations of dimethyl phthalate (DMP) (0.01 渭 g / L ~ (-1). Objective: diisooctyl phthalate (DIOP),) dibutyl phthalate (DBP), diethyl phthalate (DEP), dimethyl phthalate (DMP). DBP) is in accordance with the National Surface Water Environmental quality Standard (GB3838-2002). Compared with other domestic waters, The pollution level of PAEs in surface water of Daliaohe River is low. The highest values of DMP and DEP are found in the sampling site of gauze factory, one of the most important industrial and domestic sewage drains in Yingkou city, and the highest values of DBP and DIOP are given respectively. Now Niuzhuang Bridge and harbour supervision tidal trench sampling sites. The distribution trend of total PAEs organic pollutants is that the concentration of PAEs is higher in the areas with more industrial distribution and near the main urban area, and the concentration of PAEs is relatively low in the upper reaches of Daliaohe River. Using US EPA health risk assessment model, the non-carcinogenic risk index of PAEs pollutants in surface water of Daliaohe River was estimated to be less than 1.
【作者單位】： 中國環(huán)境科學(xué)研究院環(huán)境基準與風(fēng)險評估國家重點實驗室;中國環(huán)境科學(xué)研究院國家環(huán)境保護河口與海岸帶環(huán)境重點實驗室;
【基金】：國家水體污染控制與治理重大專項(2012ZX07503-002) 國家自然科學(xué)基金青年基金(NO.41406098)
【分類號】：X824;X522
[Abstract]:Gas chromatography-mass spectrometry (GC-MS) was used to detect the concentration of phthalate ester (PAEs) organic pollutants in the surface water of Daliaohe River, and to analyze their distribution characteristics, and to evaluate the environmental health risk of PAEs organic pollutants. The results show that Four kinds of PAEs, were detected in the surface water of Daliaohe River, and their mass concentration ranges from n.d.#0.754 渭 g / L ~ (-1) to n.d.#0.754 渭 g / L ~ (-1). The highest average mass concentration of (DIOP) (0.36 渭 g / L ~ (-1), of diisooctyl phthalate (DIOP) (0.36 渭 g / L ~ (-1),) was the lowest of the four PAEs concentrations of dimethyl phthalate (DMP) (0.01 渭 g / L ~ (-1). Objective: diisooctyl phthalate (DIOP),) dibutyl phthalate (DBP), diethyl phthalate (DEP), dimethyl phthalate (DMP). DBP) is in accordance with the National Surface Water Environmental quality Standard (GB3838-2002). Compared with other domestic waters, The pollution level of PAEs in surface water of Daliaohe River is low. The highest values of DMP and DEP are found in the sampling site of gauze factory, one of the most important industrial and domestic sewage drains in Yingkou city, and the highest values of DBP and DIOP are given respectively. Now Niuzhuang Bridge and harbour supervision tidal trench sampling sites. The distribution trend of total PAEs organic pollutants is that the concentration of PAEs is higher in the areas with more industrial distribution and near the main urban area, and the concentration of PAEs is relatively low in the upper reaches of Daliaohe River. Using US EPA health risk assessment model, the non-carcinogenic risk index of PAEs pollutants in surface water of Daliaohe River was estimated to be less than 1.
【作者單位】： 中國環(huán)境科學(xué)研究院環(huán)境基準與風(fēng)險評估國家重點實驗室;中國環(huán)境科學(xué)研究院國家環(huán)境保護河口與海岸帶環(huán)境重點實驗室;
【基金】：國家水體污染控制與治理重大專項(2012ZX07503-002) 國家自然科學(xué)基金青年基金(NO.41406098)
【分類號】：X824;X522
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