hazards of soluable hexa and trivalent chromium have been documented by many investigators. but there was no information regarding safety of about 5000 workers at exposure risk to chromium in 600 primitive electroplating work shops of tehran. during this study more than 70% of work shops were inactive due to some of their own problems. out of active plants those that were relatively more cooper...

he topic of radioactive waste generates debate, both publicly and scientifically. Like chemical and other hazardous waste, radioactive waste needs to be dealt with to ensure its safety and its security. Proper management and disposal of most forms of radioactive waste is technically straightforward. A robust safety regime has been developed internationally for managing and disposing of radioact...

4. With an aim to improve the waste management, Mongolia developed the following regulations: “A rule on classification, collection, temporary storage, transportation, treatment of hazardous wastes” (2002); “Regulation and procedures on disposal and landfill of hazardous waste of business entities, and requirements on waste containers and waste disposal sites” (2006); “Methodology for calculati...

The consideration that end-of-life mobile phones are hazardous wastes is likely to be controversial with those who might be unaware that cell phones contain hazardous substances and as such will be regulated under the international definitions of hazardous waste once they are discarded. However this matter has largely been resolved for us by the definitions found in the Basel Convention and by ...

AIMS To investigate the prevalence and temporal patterns of hazardous drinking and risk factors during medical school for future hazardous drinking among doctors. METHODS Two cohorts of graduating medical students (N = 1052) from all four Norwegian universities (NORDOC) were surveyed in their final year of medical school training (1993/94 and 1999) (T1) and again 4 (T2) and 10 (T3) years late...

The purpose of this study was to systematically investigate hazardous materials (hazmat) releases and determine the mechanisms of these accidents, and the industries/activities and chemicals involved. We analyzed responses by Massachusetts' six district hazmat teams from their inception through May 1996. Information from incident reports was extracted onto standard coding sheets. The majority o...

The events of 11 September 2001 became the catalyst for many to shift their disaster preparedness efforts towards mass-casualty incidents. Emergency responders, healthcare workers, emergency managers, and public health officials worldwide are being tasked to improve their readiness by acquiring equipment, providing training and implementing policy, especially in the area of mass-casualty decont...

As the world strives to create a more sustainable environment, green chemistry has come to the fore in attempts to minimize the use of hazardous materials and shift the focus towards renewable sources. Chlorophylls, being the definitive "green" chemical are rarely used for such purposes and this article focuses on the exploitation of this natural resource, the current applications of chlorophyl...

drought as a natural but temporary imbalance of water availability is the interaction between natural environment and human life resulting in diminished water resources availability and reduced carrying capacity of the ecosystems. drought indices are essential elements for an efficient drought monitoring system. these indices make the transforming information of climatic anomalies easier and al...

Fifteen compounds reported to be inhibitors of gelation or sickling were studied by standard methods. These tests included (1) the determination of the solubility of deoxyhemoglobin S or Csat, (2) evaluation of sickling in whole SS blood at various pO2s, (3) measurement of the oxygen affinity of hemoglobin and blood, and (4) examination of red cell indices and morphology. Among the 4 noncovalen...