Friday, 21 August 98 Washington, DC

1. RADON: EPA IS PREPARING TO SET SAFE-SHOWERING STANDARDS.
The Environmental Protection Agency will use the 1996 Safe Drinking Water Act to set a Maximum Contaminant Level (MCL) for radon in drinking water. It's not really the radon you drink that EPA is worried about, but the radon you inhale when it comes out in the shower. Alas, EPA has no Safe Showering Act. The MCL is meant to reduce the radon contributed to indoor air from water to the national average for outdoor air. But how much indoor radon is from water? According to EPA estimates, the cost will be about $270M per year and prevent 80 cancers. Since the BEIR-VI report (WN 20 Feb 98) blames radon for 18,000 lung cancer deaths per year, that would only be about a 0.4% reduction -- even it were right. Alas, both estimates are based on a linear-no-threshold extrapolation from data on uranium miners, which may not even get the sign right (WN 30 Jan 98). In any case, it's not a very cost effective way to reduce exposure to radon. As an informed source explained to WN, "EPA thinks it's better to pound on the wrong nail than not to pound at all." Maybe EPA should ban showers.

2. THE MARS SOCIETY: ORGANIZING TO GET TO THE RED PLANET.
A story in the New York Times this week described the first meeting of a group pledged to human exploration and colonization of Mars. The ghost of Princeton physicist Gerard K. O'Neill was at the conference in Boulder, which was organized by Robert Zubrin, author of "The Case for Mars." O'Neill, you may recall, wrote "The High Frontier," in which he proposed huge space colonies be constructed at the L5 point, for reasons that remain obscure. The L5 Society was formed to lobby for the idea; its motto was "L5 by 95." One of O'Neill's disciples in the L5 Society was Zubrin. Reality is the ISS -- six humans in low-Earth orbit in a can as Spartan as Alcatraz, at a cost that threatens to bankrupt the space program. But Zubrin is proposing to do Mars on a shoestring, "living off the land like Lewis and Clark." He must have a different Mars in mind than the one visited by Pathfinder.

3. BROOKHAVEN: ANTI-NUCLEAR ACTIVISTS NOW FOCUS ON PLUTONIUM.
First it was a tritium leak at the High Flux Beam Reactor, which led to termination of DOE's contract with Associated Universities Inc. to manage the lab (WN 2 May 97). The total tritium involved was less than that contained in a single self-illuminating exit sign. That was followed by discovery of high levels of strontium in a drainage tank (WN 21 Mar 97). Now, plutonium has been found in sediments of the Peconic River. Referring to plutonium as "the deadliest substance on Earth," activists charged on Tuesday that the plutonium is the direct result of Brookhaven operations. BNL director John Marburger immediately issued a statement declaring that the lab "will accept responsibility for levels of plutonium requiring cleanup." Any decision about cleanup will be based on the results of a "sound follow-up sampling plan."



Bob Park can be reached via email at whatsnew@bobpark.org
THE UNIVERSITY OF MARYLAND
Opinions are the author's and are not necessarily shared by the University, but they should be.