Dangerous goods

Summary

Dangerous goods, abbreviated DG, are substances that when transported are a risk to health, safety, property or the environment. Certain dangerous goods that pose risks even when not being transported are known as hazardous materials (syllabically abbreviated as HAZMAT or hazmat). An example for dangerous goods is hazardous waste which is waste that has substantial or potential threats to public health or the environment. Hazardous materials are often subject to chemical regulations. Hazmat teams are personnel specially trained to handle dangerous goods, which include materials that are radioactive, flammable, explosive, corrosive, oxidizing, asphyxiating, biohazardous, toxic, pathogenic, or allergenic. Also included are physical conditions such as compressed gases and liquids or hot materials, including all goods containing such materials or chemicals, or may have other characteristics that render them hazardous in specific circumstances. Dangerous goods are often indicated by d

Official source

https://en.wikipedia.org/wiki/Dangerous_goods

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Wrong manipulation, storage or disposal of chemicals can cause great damage whether it occurs on industrial plants, in academia or at home. Amongst the numerous reasons, lack of knowledge and haste are the most common ones. Except for a few substances subject to international agreements, the academic world benefits from a great latitude in the use of chemicals. To make colleagues aware of the hazards and risks associated to chemicals, and protect them accordingly, the Occupational Safety and Health service of the School of Basic Sciences (SB-SST) has decided to submit to authorization the purchase and manipulation of very hazardous chemicals. The process starts by a thoughtful discussion with the requester about the substance and whether a less hazardous alternative could be used instead. If the request is validated, the work procedure is analyzed and the protective measures for safe manipulation of the chemical checked. Consequently the SB-SST authorizes or not the personnel to order the compound. This innovative participative risk-management concept is illustrated herein with osmium tetroxide, as an example of a lethal compound used in chemistry, biology and electronic microscopy. The data resulting from the authorization process is recorded in a database and the need to review the associated procedure and/or the authorization itself is performed twice a year during safety audits of the workplaces.

2016

Education and management in using especially hazardous chemicals in a research and teaching institution

Sebastian Brückner, Jean-Luc Marendaz, Thierry Meyer

2016

Estimation of bid functions for location choice and price modeling with a latent variable approach

Michel Bierlaire, Ricardo Daniel Hurtubia González

A new approach for the estimation of bid-rent functions for location choice is proposed. The method considers that the expected maximum bid in the auction of a good is a latent variable than can be related to observed prices for similar goods. The model generates estimates for the spatial distribution of agents and prices simultaneously that are better than those obtained by estimating a maximum bid and a price model independently. The model is applied and validated for a case study. Results show that the proposed model outperforms other methods for bid rent estimation, especially when detailed data describing the real estate goods an their prices is not available.

2012