کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6307659 | 1618837 | 2015 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Puddles - A trigger for heterogeneous chemical influx into the unsaturated zone
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کلمات کلیدی
CAFODVO-desmethylvenlafaxineSMXVLFTSEACNCbzPPCPsDOCAcetonitrile - استونیتریلPharmaceuticals and personal care products - داروسازی و محصولات مراقبت شخصیElectrical conductivity - رسانایی الکتریکیSulfamethoxazole - سولفامتوکسازولVadose zone - منطقه هواده، منطقه تهویه، منطقه اشباع نشدهVenlafaxine - ونلافاکسینSewage effluents - پساب فاضلابcarbamazepine - کاربامازپینCaffeine - کافئینDissolved organic carbon - کربن آلی حل شده
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
شیمی زیست محیطی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Spatial heterogeneity in the chemical concentration of interstitial water in the vadose zone was previously observed under apparently homogeneous surface conditions on two leveled fields sprinkler irrigated with treated sewage effluents on the phreatic Coastal Plain aquifer of Israel. This phenomenon greatly hampers the monitoring of groundwater quality. In this study we report on the presence of puddles of different size and shape that were sporadically observed in these fields. Temporal variability noted in the concentration of treated sewage effluents components in the puddles were considered to be related to evapotranspiration and degradation. For example: increases in the electrical conductivity (up to 1.32Â mS/cm), and in the concentrations of chloride (up to 521Â mg/L), dissolved organic carbon (up to 28.4Â mg/L), and carbamazepine (up to 780Â ng/L) and decreases in the concentrations of nitrate (up to 20.1Â mg/L) and caffeine (3396Â ng/L). Variable trends in concentration were observed for sulfamethoxazole, venlafaxine, 10-hydroxy-10,11-dihydrocarbamazepine and o-desmethylvenlafaxine. The presence of puddles was not necessarily related to areas with high irrigation water input. It is postulated that the continuous chemical variability in the puddles, whose location and size are also variable, determine a heterogeneous influx of solutes into the soil and subsequently into the vadose zone.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemosphere - Volume 134, September 2015, Pages 217-223
Journal: Chemosphere - Volume 134, September 2015, Pages 217-223
نویسندگان
Eitan Zentner, Noam Weisbrod, Zev Gerstl, Guy Gasser, Daniel Ronen,