ok, finally a public holiday, to rest?? No nO No people...we got to do our GPP..life is just like that, there isn't a time where you can enjoy one moment in time, needing to to nothing but just to savour that moment in time..maybe its only in death that we can find such comforting times..
Isn't it Ionic? Air Purifiers Make Smog
Here's how to create your own personal Stage 2 Smog Alert: Buy an indoor air purifier.
Using a popular process called ionization, the air cleaners can actually generate ozone levels in a room that exceed the worst smog days in Los Angeles, a new study finds.
The devices are popular in urban areas. They are touted as getting rid of dust, pollen and other airborne particles.
Fill the room
Ionic air purifiers, one type of these devices, are said to work by charging airborne particles and then attracting them to metal electrodes. They emit ozone as a byproduct of this ionization process.
In a small and poorly ventilated room, the ozone adds to existing ozone and creates potentially unhealthy concentrations.
"People operating air purifiers indoors are more prone to being exposed to ozone levels in excess of public health standards," said study leader Sergey Nizkorodov, a chemistry professor the University of California, Irvine.
Ozone can damage the lungs and cause shortness of breath and throat irritation, and it can also exacerbate asthma.
Insidious machines
Nizkorodov and colleagues tested various air purifiers in homes, offices and cars. In many cases, ozone levels inside climbed above 90 parts per billion, exceeding California's basic safety threshold. In some cases, ozone soared higher than 350 parts per billion, which if measured outside would trigger a Stage 2 Smog Alert, an event that hasn't occurred in the Southern California coastal air basin since 1988.
More chilling is that some people susceptible to the ill effects of ozone will eagerly bring these Trojan horses home."
Science does not even suggest the things do what they're purported to do.
An EPA fact sheet has this to say about air purifiers: "Available scientific evidence shows that at concentrations that do not exceed public health standards, ozone has little potential to remove indoor air contaminants. Some manufacturers or vendors suggest that ozone will render almost every chemical contaminant harmless by producing a chemical reaction whose only by-products are carbon dioxide, oxygen and water. This is misleading."
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