Friday, 18 September 98 Washington, DC

1. RADON: NRC STUDY SAYS RADON IN WATER POSES LITTLE RISK.
As WN revealed a month ago (WN 21 Aug 98), EPA is preparing to use the 1996 Safe Drinking Water Act to set a maximum contaminant level for radon in drinking water. EPA estimates that the MCL would cost water suppliers about $270M per year. On Tuesday, an NRC panel released a report on the risks associated with radon in drinking water. The conclusion? Stop smoking. The problem is inhaled radon, and smoking enormously amplifies the hazard. Radon that escapes from water, however, is a minor source of indoor radon. The NRC study, like all such studies, was based on a linear-no-threshold extrapolation from data on uranium miners, which may not even get the sign right. In any case, WN feels compelled to warn readers against smoking in the shower.

2. WEAPONS TESTING: HOW BIG IS THE CREDIBILITY GAP?
A new analysis of seismic data from the India and Pakistan nuclear tests in May concludes that the claims of both governments were greatly exaggerated, as WN suggested at the time (WN 29 May 98). While intelligence failed to anticipate the tests, the article in the September issue of Seismological Research Letters points out that the seismic monitoring system for assuring compliance with CTBT worked well. Meanwhile, North Korea said last week's missile test (WN 11 Sep 98) was really a three-stage rocket that put a small satellite in orbit broadcasting revolutionary hymns. While no one has yet picked up any music, U.S. defense officials now believe it was a failed test of a three-stage rocket.

3. FY 99 BUDGET: CONGRESS PASSES A CONTINUING RESOLUTION.
It's the first CR of the season, but probably not the last (WN 11 Sep 98). The bill would keep the government operating through October 9, the target date for adjournment. Of the 13 spending bills, only the relatively small and noncontentious military construction bill has been sent to the President.

4. COSMOLOGY: IS A MYSTERY FORCE TUGGING AT OUR SPACECRAFT?
A report in Physical Review Letters says something more than gravity seems to be slowing down spacecraft headed out of the solar system. Whoa! New physics can't be ruled out, but in the last year we've been through cosmic snowballs, a twist in the universe, leptoquarks, galaxies older than the universe and a cosmological constant that pushes the universe apart.

5. ALTERNATIVE MEDICINE: "NATURAL" IS NOT A SYNONYM FOR SAFE.
The New England Journal of Medicine this week warned of deaths from unsafe herbal remedies. A century ago, public outrage over worthless and dangerous "snake-oil" sales led to the 1906 Food and Drug Act. The 1994 Dietary Supplement and Health Education Act turned the clock back, exempting "natural" substances from FDA oversight--no proof of efficacy, safety or purity required.



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.