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Laboratory Pollution Prevention continued from page 1

Economy of Size Myth- Cost Analysis of Xylene Package Size Purchase price Unit purchase price per ml when 2,000 ml are used Unit purchase price per ml Disposal costs Purchase + disposal cost per ml used

Purchase + disposal cost From “Less is Better,” American Chemical Society, 2002

1 Liter

4 Liter

$ 42.49

$ 93.72

$ .04

$ .02

$ .04

$ .05


$ 29.80

$ .04

$ .06

$ 84.98

$ 123.52

Substitute less hazardous or non-hazardous materials.

Substitution of less hazardous or non-hazardous materials can effectively reduce the amount of hazardous waste generated from your lab and risk of exposure to lab workers.

Examples of Substituting Less Hazardous Chemicals

  • propylene glycol instead of ethylene glycol;

  • ethyl alcohol instead of methylene alcohol;

  • alcohol thermometers instead of mercury thermometers;

  • Alconox, Pierce RBS35 and Nochromix instead of chromic acid cleaning solutions; and

  • detergent and hot water instead of organic solvent cleaning solutions

Implement a Purchasing/Inventory Control Program.

This consists of:

  • rotating stock “first-in, first-out”;

  • addressing shelf-life issues;

  • completing an inventory review at least once per year; and

  • using surplus chemicals within an organization or distributing to others via a chemical/

material exchange.

OMEx - The Ohio Materials Exchange distributes free information on surplus and/or waste materials available from or wanted by industrial and commercial entities. There are details on the Office of Compliance Assistance and Pollution Prevention’s (OCAPP) Web site.

Success Story:

The Ohio National Guard’s 180th Fighter Wing, Swanton, OH implemented a Hazardous Materials Pharmacy (HMP), or inventory control system, as part of an enforcement settlement with DHWM in 1998. The HMP provides a centralized storage and distribution center for all hazardous materials. The Guard saved an estimated at $10,000-$30,000 per year in chemical purchase costs and reduced disposal of expired chemicals by 1,000 pounds per year.

Segregate your waste.

Keep individual hazardous waste streams segregated: hazardous from non-hazardous and recyclable from non-recyclable.

Success story: A lab in Arizona reduced hazardous waste generation by 87 percent in one year by training employees to segregate waste.

continued on page 3...

Notifier-Winter 2006



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