Comment: Re:Remove all 2.4 GHz emitting devices (Score 5, Insightful) 360
It doesn't matter if chalk dust causes lung problems, it appears to be enough if the 'safety of this technology has not thoroughly been researched'. The health effects of WiFi signals has more likely been much more heavily researched than graphite dust from pencils, dry-erase marker dust or the liquid that evaporates from them. For that matter any additional un-tested off-brand pens and markers brought in from students.
I like the comments above from others. If the union is successful then also absolutely prohibit any teacher from bringing a mobile phone on to campus. Remove microwave ovens from the schools as well. If a 600mw WiFi radio on a ceiling is thought to be dangerous, then a powered up phone in a closed metal vehicle should be viewed as reckless. In keeping with standard school policies, a teacher with a powered on mobile phone anywhere on campus, including their cars, be subject to a zero-tolerance policy and result in immediate termination.