Showing posts with label hazardous materials. Show all posts
Showing posts with label hazardous materials. Show all posts

Thursday, October 29, 2009

Hazmat Hounds

Now this is the sort of thing that is just tooo strange to make up: What do you do with dog vomit after Fido eats the rat poison you stupidly left lying around? Question from health official: We have had two cases in the state recently where a dog has eaten zinc phosphide rat poison. The dog is rushed to the vet, they make it vomit and are overcome by the phosphine. We are going to send out an advisory suggesting that this procedure be performed outside of the facility, think behind the building, so we can get adequate ventilation. The issue then becomes what to do with the dog barf? Do we have them direct the dog to a plastic garbage bag and seal it up? Since we have had two cases of this there must have been others somewhere in the US, do you know of anyone who has an experience with it? Any suggestions would be appreciated. Response from EPA: Inducing vomiting is the right treatment. But acid or water causes decomposition and release of phosphine gas. Recommendation is to flood away barf with copious water, while wearing respirator. (Look up respirator in NIOSH) They recommend disposal in a DRY soil pit, but you have to get it there. Level B, or at least supplied air, is my best guess. What about Baking Soda, the all-purpose solution? At least it's not an acid. The following is from Google search on decontaminating sodium phosphide: SYNOPSIS A rodenticide of high mammalian toxicity which in the presence of dilute acid will decompose to liberate phosphine. It is not cumulative in body tissues. SELECTED PROPERTIES Physical characteristics: A grey powder of high melting point which sublimes when heated in the absence of oxygen. Solubility: Practically insoluble in water and ethanol. Soluble in benzene and carbon disulfide. Stability: Stable when dry but decomposes slowly in moist air. It reacts violently with acids with decomposition to the spontaneously inflammable phosphine gas. Vapour pressure: Very low. Phosphine odour detectable at 1.5-3.0 ml/m3 of air, depending on its purity.

Monday, August 31, 2009

Xcel & others prosecuted

People say the strangest things: It was just an accident. Xcel Energy is being prosecuted by the U.S. Justice Department (upon the request of OSHA) for the deaths of 5 people a couple years ago. More interesting to me is that individual people are being prosecuted as well, not just the corporation. Two people from the sub-contractor doing the work. The original story from 2007 in the NY Times has a nice photo showing the exterior of the worksite. Minneapolis-based Xcel issued a statement Friday that said the fire was an accident, not a criminal act. Do these people actually think the two are mutually contradictory? Well, I guess they do. Or at least, they want you to. ... occurred during the renovation of a large empty metal pipe down which water normally flowed to create hydroelectric power. Five employees of RPI Coating were trapped in the pipe when chemicals being used in the renovation caught fire and blocked their only exit. well, since Xcel is here and the fatalities were there, the Denver paper has a better article. workers were in a drained water tunnel, known as a penstock, connected to the plant, cleaning a sprayer with a flammable solvent. Vapor from the solvent ignited, causing the fire ... There is a link at the bottom of this article to a .pdf copy of the Federal Indictment. I suppose there should be a standard disclaimer: this is my personal opinion, blah blah, based upon information available at the time blah blah.

Friday, May 29, 2009

Employment in Urals

New jobs for IH/evironmental in the Urals in Russia, decommissioning weapons of mass destruction.