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Temporal dynamics of human-excreted pollutants in wastewater treatment plant influents: Toward a better knowledge of mass load fluctuations

机译:污水处理厂进水中人类排泄污染物的时间动态:更好地了解质量负荷波动

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The occurrence of 25 drug target residues (illicit drugs or pharmaceutically active compounds) was investigated during 85 consecutive days in the influents of a wastewater treatment plant in the Region Centre-Val de Loire, France. This long tracking period allowed a better understanding of the patterns affecting the occurrence of this type of contaminants. Among them, 2 were never detected (i.e. heroin and amphetamine). Concerning illicit drugs two patterns were found. Cocaine and ecstasy median loads varied considerably between weekdays and weekend days (i.e. 18.3 and 35.9% respectively) whereas cannabis and heroin (based on 6-mono~acetylmorphine loads) loads were within the same order of magnitude with a significant statistical correlation with pharmaceuticals such as acetaminophen or ketoprofen. The consumption of selected drugs was back-calculated from the loads. Among illicit drugs the highest consumption was found for cannabis with a median consumption of 51 mg·day~(-1) · inhabitant~(-1) (inh) whereas the median consumption for cocaine (based on benzoylecgonine loads) and ecstasy was 32 and 6 mg· day~(-1) · 10~3 · inh~(-1) respectively. The highest consumption values of pharmaceutically active compounds (PACs) were found for acetaminophen and acetylsalicylic acid with 108.8 and 34.1 mg · day~(-1) · inh~(-1) respectively, in good agreement with national sales data. A statistically significant weekly pattern was found for several PACs such as metoprolol and trimethoprim, but with the opposite pattern to that of illicit drugs. The variations in daily PAC loads could provide information about the mobility of people in the catchment, especially on the basis of daily taken PACs (i.e. to treat chronicle diseases).
机译:在法国卢瓦尔河谷中心地区的一家废水处理厂的进水中,连续85天调查了25种药物目标残留物(非法药物或药物活性化合物)的发生。较长的跟踪时间可以更好地了解影响此类污染物发生的模式。其中从未检出2种(即海洛因和苯丙胺)。关于非法药物,发现了两种模式。可卡因和摇头丸的中位数负荷在工作日和周末之间变化很大(分别为18.3和35.9%),而大麻和海洛因(基于6-单乙酰基吗啡负荷)的负荷在同一数量级内,与此类药物的统计显着相关如对乙酰氨基酚或酮洛芬。所选药物的消耗量是根据负荷量反算的。在非法药物中,发现大麻的最高消费量,中位数消费量为51 mg·天〜(-1)·居民〜(-1)(inh),而可卡因(基于苯甲酰芽子碱负荷量)和摇头丸的中位数消费量为32和6 mg·天〜(-1)·10〜3·inh〜(-1)。发现对乙酰氨基酚和乙酰水杨酸的最高药用价值分别为108.8和34.1 mg·day〜(-1)·inh〜(-1),与国家销售数据吻合。几个PAC(例如美托洛尔和甲氧苄氨嘧啶)的每周模式具有统计学意义,但与非法药物的模式相反。每日PAC负荷的变化可以提供有关流域内人员流动性的信息,尤其是基于每日摄取的PAC(即治疗慢性病)的信息。

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