Jim Geier reports in an article at Wi-Fi Planet, Dueling with Microwave Ovens, about his experiments, which show how radiation from microwave ovens might interfere with wireless local computer networks, so-called WLAN’s. From a health point of view this seems to indicate that our microwave permeated environment not only includes radiation from cordless phones, cell phones, burgler alarms etc., but also leakage from microwave ovens, short in duration maybe but still adding to the total exposure. A quotation from the article:
A more realistic distance from the microwave is from one of the break tables, which is about eight feet away from the microwave. At this range, I reran the throughput tests, resulting in 178pps. This still equates to around a 75 percent decrease, something that would likely make users unhappy. [...]
I also repeated the tests down the hall about 20 feet away with the microwave running and still experienced fairly sluggish responses. In fact, throughput from there was still only 260pps. Obviously, the microwave was making the WLAN crawl at surprisingly great distances from the microwave.