Mercury: risks and handling as hazardous waste

Abstract

The handling of some chemical substances, as is the case of Mercury used in the determination of the contraction characteristics of soils, becomes dangerous waste at the end of the test process, which requires an adequate management having as a reference the established measures in the legislation and complying with the legal and applicable requirements in this matter. In the present work the characteristics of the mercury, the measures for its use, transportation, and/or storage, as well as the risks to the occupationally exposed workers, are related in the Laboratories of the Applied Research Company. The objective of this research is to raise the culture in the procedures for the handling of chemical substances and hazardous waste, in the use and care of the means of individual protection, as well as compliance with everything established in the procedures for the realization of activities related to the use of mercury to form an environmental awareness focused on achieving an excellent quality of life in the workplace and contribute to the protection of the environment.

comparative study of oxidant and anti-oxidant parameters in chronic renal failure, haemodialysis (pre & post) and controls

“…Adequate dialytic treatment has prolonged the survival of patients with quality of life. Cardiovascular disease was found to be the most frequent cause of mortality in majority of patients on maintenance haemodialysis (14)(15). Thus the results of our study shows that significant difference of antioxidant enzymes between pre and post dialysis group is thought to be related with the loss of antioxidant enzymes through the membrane and the decreased antioxidant enzymes may be related to increased of lipid peroxidation in hemodialysed patient.…”

Employing the arithmetic mean to find the IBFS for transportation problems

“…problems in various fields of sciences such as optimization , reliability [27][28][29][30][31][32][33][34][35][36], and operations research [37][38][39][40][41][42][43]. The following are the fundamental phases in this method:…”