Georgetown University Medical Center

EH&S Newsletter

December 1996

Susan Martin, Director

Sim Shanks, Radiation Safety Officer


Table of Contents

Survey Results:Lab Chemical Hygiene Training

Lock Boxes to Secure Radioactive Materials

On the Web

IN THE NEWS (A collection of brief safety/environmental related news articles)

CPSC Warns About Flexible Dangerous Flexible Gas Connectors Used on Home Appliances

Radioactive Contamination Incident in GU Lab

Working Alone in the Lab

Relocating Radiation-Using Researchers

‘Twas the Night Before Christmas

Radiation Safety Training Schedule

Send EH&S an email message


Survey Results:Lab Chemical Hygiene Training

EH&S recently distributed a survey to Principal Investigators (P.I.s) at GU. The purpose of this survey was to determine the level of interest in a lab safety course to be conducted by EH&S. The survey also asked that P.I.s offer suggestions regarding course content and logistics.
RESULTS:
  1. Training upon initial assignment is a regulatory requirement. Do you or someone else in the lab conduct this training for all lab staff upon initial assignment?
    Yes 49; NO 6

  2. Would General Lab Safety training presented by EH&S be useful in conjunction with lab specific training provided by the lab?
    YES 42; NO 9; other 4: The course will be offered.

  3. Should the proposed training (conducted by EH&S) be mandatory for lab staff.
    YES 28; NO 12: While the majority suggested the training should be mandatory, one response indicated that it is the P.I.s legal responsibility to ensure adequate training and should therefore be at the discretion of the P.I. (and considering educational and employment background). EH&S agrees with this viewpoint. However, if few people attend the training course, EH&S will be forced to redesign or discontinue the course due to staffing priorities.

  4. Training is required upon initial assignment and as necessary thereafter. How often should this training be offered ?
    Annually 17; Semiannually 9; Quarterly 10: Responses indicated that new lab staff is acquired primarily during three time periods. The course will be offered three times per year. This may change at a later date, depending upon attendance.

  5. How often should personnel be required to attend?
    Initially 27; Annually 10; Other 2: Again, this will be left to the discretion of the P.I. However, due to comments received on the survey, it is suggested that staff attend a refresher session at least once every two years.

  6. Would it be beneficial to assemble a committee to determine training needs and course content?
    YES 15 NO 19 ; If yes, would you be willing to be a member? YES 10 : Staff volunteering to be a part of a committee did not represent the various GU departments. It was suggested by one respondent that EH&S design a course and invite interested P.I.s/ staff to provide additional input. EH&S will notify those persons having expressed interest in a committee when a draft course is ready.

EH&S wishes to thank all those that responded. We hope to have a course ready in the near future. If you have any additional suggestions or comments, please contact us.

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Lock Boxes to Secure Radioactive Materials

All radioactive material must be secured at all times: Under the direct or visual control of approved (trained) laboratory personnel or in locked storage containers and/ or labs. During normal working hours Radiation Safety recommends that, when not in use, the stock vials be locked up at all times. After normal laboratory working hours the door(s) accessing the lab must be locked.

EH&S has placed an order for plexiglass boxes with combination locks. The boxes have a drawer rather than a lid so they may be stacked, or other items stacked on them. Cost for each box will be about $220.00. Buying the boxes in quantity significantly reduced the cost per box.

Cables will be provided to securely anchor any security box to your refrigerator, freezer, bench or cabinet. Radiation Safety is also looking into ways of applying hasps with padlocks to refrigerators or freezers without drilling holes.

If you are interested in one or more of the boxes or want information on other available lock boxes, security cables, or have questions concerning security of radioactive materials please contact Sim Shanks at 7-4712.

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On the Web

Check out the EH&S homepage for information about: Just go to the Office of Dean of Research Homepage at http://macpost.odr.georgetown.edu/ and click on Environmental Health and Safety.
OR
Click here

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IN THE NEWS (A collection of brief safety/environmental related news articles)

Hospitalizations Tied to Ozone Pollution.

Study estimates 50,000 admissions annually. Washington Post, 21 June, A3. The Harvard School of Public Health and the American Lung Association released a study of 13 major U.S. cities showing that ozone may be responsible for as many as 50,000 hospital emergency room visits for respiratory problems every year. It can cause lung inflammation, increased susceptibility to infections and worsening of asthma and allergies. Los Angeles was found to have the highest percentage of respiratory-related hospital admissions linked to smog, with 8.5 percent; Baltimore was second, with 7.9 percent. The EPA recently proposed new air quality standards for ozone and fine particulates.

"Fatal Accidents on Rise,National Safety Group Says [Around the Nation]."

Washington Post, 10 October 96, A22. The National Safety Council reports that accidental deaths increased to 93,300 in 1995, up 2 percent from 1994. The group said there was a 4 percent increase in alcohol- related traffic deaths and "a surge in drug overdoses and other unintentional fatal poisonings."

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CPSC Warns About Flexible Dangerous Flexible Gas Connectors Used on Home Appliances

Some older corrugated metal tubes used to connect home appliances to natural gas supply pipes could corrode leading to a fire or explosion, according to the U.S. Consumer Product Safety Commission (CPSC). These connectors are used most often with gas ranges, ovens and clothes dryers.

“The CPSC has received 200 reports of these connectors failing," Brown said. "These failed connectors have been associated with 35 deaths and 59 injuries. “

The connectors are older, uncoated, brass connectors, which have not been made for at least the past 10 years. The brass fittings on these connectors which attach the connector to the natural gas supply pipe and the appliance, were soldered onto a corrugated brass tube. The CPSC believes that the solder can fail, causing a break in the connector and resulting in a gas leak. The CPSC warns consumers not to move their appliances in an effort to inspect the connectors themselves. The connector should be inspected only by a professional service provider. These older brass connectors with weak, soldered connections could break if moved, leading to an explosion or fire. Moving an appliance, even slightly, if only to clean behind it, could cause a weakened connector to fail.

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Radioactive Contamination Incident in GU Lab

At 2 a.m. a researcher was preparing to leave the lab after working with radioactive materials. As prescribed by the rules, a meter survey was performed on himself and the area in which the material was used. The survey indicated that his shoe and the lab floor were contaminated with radioactive material. The researcher decontaminated the shoe and by 4 a.m. a meter survey of the lab floor seemed to indicate that decontamination efforts were successful. He secured the lab and left for home without leaving any record/notification of the contamination he had found.

The next day (arriving at 2 pm) he informed his co-workers. The lab manager immediately ordered a meter survey of the lab and personnel. The floor and shoes were again found to be contaminated. Radiation Safety (Rad. Safety) was notified and decontamination efforts initiated. Floor contamination was found in two offices, an elevator, and a dark room. All areas were decontaminated. Results of Rad. Safety surveys of two homes, three cars, a vending machine room, lunch room, autoclave room, and stairs revealed no contamination.

The Radiation Safety Committee (RSC) reviewed the incident and recommended that the posting, “RADIATION EMERGENCY PROCEDURES,” be changed and the incident be reviewed at radiation safety training sessions.

The following changes were initiated:

The RSC strongly recommended that individuals work in pairs in a lab (buddy system) or, at a minimum, let someone know of your presence in a lab. Also, inform them of when you might be expected to leave.

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Working Alone in the Lab

Besides the hazards and potential complications of working alone in a lab described in the preceding article, many other hazards present in the lab can be compounded by working alone. It is always in your best interest to use the buddy system or notify someone that you are working alone in the lab. Imagine if you were working alone and slipped and fell, or were overexposed to an acutely toxic chemical.

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Relocating Radiation-Using Researchers

Prior to relocating or decommissioning a lab in which radioactive material is used, EH&S must be provided written notification at the earliest possible time (at least one week advance notice).

Radiation Safety (Rad. Safety) will schedule a wipe and meter survey of the lab which must be completed before packing, removing equipment, or maintenance work. Prior to the Radiation Safety wipe and meter survey, all radioactive waste should be transferred to the waste room. (Normal waste hours: Monday and Thursday, 11:00 to 11:30, Room WG-01, TRB.) Use of radioactive materials in the lab is prohibited following this survey.

If any wipe result indicates removable contamination over 100 dpm, lab personnel will be notified and asked to clean the item and provide Rad. Safety with documentation that the removable contamination is less than 100 dpm. When results indicate that removable contamination is less that 100 dpm, lab personnel will be notified that packing or removing lab supplies and equipment may proceed.

Prior to moving items from the lab: