Track topics on Twitter Track topics that are important to you
This investigation deals with the characterization carried out in zones around two pipeline pumping stations and one pipeline right-of-way in the north of Mexico. In particular those areas where contamination was evaluated: (a) south area of the separation ditch in the Avalos station, (b) the area between the separation ditch at the Avalos station, (c) km 194+420 of the Moctuzma station, and (d) km 286+900 in the Candelaria station. Results of this investigation showed that only four samples showed TPH values higher than the Mexican limit for 2004: AVA 1B, with 21,191mgkg(-1); AVA 1C, with 9348mgkg(-1); AVA 2B, with 13,970mgkg(-1); and MOC 2A, with 4108mgkg(-1).None of the sampled points showed the presence of PAHs at values higher than those found in the Mexican or American legislations. PAH were detected in the range of 0.0004 and 13.05mgkg(-1).It is suggested to implement surfactant soil washing as a remediation technique for the approximately 600m(3) that need to be treated.
Grupo Saneamiento de Suelos y Acuiferos, Coordinacion de Ingenieria Ambiental, Instituto de Ingeniería, Universidad Nacional Autonoma de Mexico, Apartado Postal 70-472, Coyoacan, 04510 Mexico D.F., Mexico.
This article was published in the following journal.
Name: Journal of environmental management
The accidental leakage is one of the main risks during the pipeline transportation of high pressure CO2. The decompression process of high pressure CO2 involves complex phase transition and large vari...
Over the past years, research utilizing routine care data extracted from Electronic Medical Records (EMRs) has increased tremendously. Yet there are no straightforward, standardized strategies for pre...
The current biomarkers alpha-fetoprotein and human chorionic gonadotropin have limited sensitivity and specificity for diagnosing malignant germ-cell tumours (GCTs). MicroRNAs (miRNAs) from the miR-37...
Patients with medically refractory epilepsy often require intracranial electrode implantation for seizure localization. As the use of these procedures continues to increase, the demand for simpler and...
The aim of this study was to quantify the effect of the new Low-profile Visualized Intraluminal Support (LVIS®D) device and the difference of fluid diverting effect compared with the Pipeline device ...
This is a prospective, single-arm, multi-center post-market observational study assessing the performance of the Pipeline™ Flex Embolization Device with Shield Technology™ in subjects ...
To compare the internal fixation results of three pedicle screw implantation methods and investigated the accuracy and safety of digital navigation-assisted pedicle screw placement.
The purpose of TEAhM is to determine if telehealth blood pressure stations can be installed and used in senior nutrition centers and to do a preliminary comparison of blood pressure outcom...
1. To establish the culture positivity rate in adjustable suture strabismus surgery 2. To identify bacterial species and antibiotic susceptibility patterns of microorganisms cultur...
This study will determine if there is a difference in bacterial contamination (CFU/cm2) between obstetric resident surgical scrubs donned at home and those donned at the hospital.
Disabling osteochondrodysplasia with OSTEOSCLEROSIS, cone-shaped METAPHYSIS, and shortening of the DIAPHYSIS. It is endemic in parts of Siberia and northern China. Mineral deficiencies (e.g., selenium, iodine), fungal cereal contamination, and water contamination may be contributing factors in its etiology.
Counterpulsation in which a pumping unit synchronized with the patient's electrocardiogram rapidly fills a balloon in the aorta with helium or carbon dioxide in early diastole and evacuates the balloon at the onset of systole. As the balloon inflates, it raises aortic diastolic pressure, and as it deflates, it lowers aortic systolic pressure. The result is a decrease in left ventricular work and increased myocardial and peripheral perfusion.
A family of Urodela consisting of 15 living genera and about 42 species and occurring in North America, Europe, Asia, and North Africa.
Individual members of North American ethnic groups with ancient historic ancestral origins in Asia.
Pumping that aids the natural activity of the heart. (Dorland, 27th ed)
Food is any substance consumed to provide nutritional support for the body. It is usually of plant or animal origin, and contains essential nutrients, such as carbohydrates, fats, proteins, vitamins, or minerals. The substance is ingested by an organism ...
Pulmonary arterial hypertension (PAH) is a chronic, life-threatening disorder characterized by abnormally high blood pressure in the arteries between the heart and lungs of affected individuals. Symptoms can range from mild breathles...