نتایج جستجو برای: compound btex

تعداد نتایج: 128485  

Journal: :Environmental science & technology 2011
Henry X Corseuil Amy L Monier Marilda Fernandes Marcio R Schneider Cristina C Nunes Mario do Rosario Pedro J J Alvarez

In this 10 year study, Brazilian gasoline (100 L, containing 24% ethanol by volume) was released to a sandy aquifer to evaluate the natural attenuation of benzene, toluene, ethylbenzene, and total xylenes (BTEX) in the presence of ethanol. Groundwater concentrations of BTEX, ethanol, and degradation products (e.g., acetate and methane) were measured over the entire plume using an array of monit...

2016
Verónica Hernández‐Sánchez Lázaro Molina Juan Luis Ramos Ana Segura

Benzene, toluene, ethylbenzene and xylenes (BTEX) contamination is a serious threat to public health and the environment, and therefore, there is an urgent need to detect its presence in nature. The use of whole-cell reporters is an efficient, easy-to-use and low-cost approach to detect and follow contaminants outside specialized laboratories; this is especially important in oil spills that are...

Journal: :Journal of environmental monitoring : JEM 2003
Patrick Roose Gerlinde Van Thuyne Claude Belpaire Mark Raemaekers Udo A Th Brinkman

Twenty freshwater eels caught in Flanders (Belgium) were analysed by GC-MS for a total of 52 VOCs. The most prominent VOCs are the BTEX and a number of chlorinated compounds such as chloroform and tetrachloroethene. The observed concentrations which, typically, were in the low ng/g wet weight range, could be linked to the major emission sources and the present study gives new evidence that comb...

Journal: :South African Journal of Chemical Engineering 2017

Journal: :Processes 2021

Porous asphalt pavement (PAP) with a high drainage capacity was modified powdered activated carbon (PAC) addition to produce permeable reactive (PRP), which may exhibit the potential reduce environmental non-point source (NPS) pollution. The experimental design mixtures used and test PRP incorporated PAC (named PRP-PACs) were conducted as follows: first, PACs initially tested determine their fe...

ژورنال: محیط شناسی 2014

زرقان در 25 کیلومتری شمال شرقی شیراز همواره تحت تأثیر آلاینده‌های متعددی واقع شده است. بنزن، تولوئن و اگزیلن از آلاینده‌های مهم هوا به شمار ‌می‌روند. منابع آلاینده در اطراف زرقان سهم مهمی در ایجاد این آلاینده‌ها دارند. در این مطالعه 10 ایستگاه انتخاب و از طریق جاذب‌های استاندارد‌شدة گروه بنزن، تولوئن، اتیل بنزن و اگزیلن (BTEX) به روش پسیو نمونه‌برداری شدند. نمونه‌ها پس از دو هفته تماس با هوای م...

Journal: :American Journal of Engineering and Applied Sciences 2017

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید