Posted: Jul 4, 2008 4:28 pm |
Edited by: bradx
i think its ridiculous. they sell this under the banner of protecting the rights and health of employees, while at the same time the children are being sent to school in diesel burning buses which are dangerously bad for their health, and they arent outlawing laser printers, which for office workers exposed to them on a regular basis are just as cancer causing as smoking a pack a day. you know what else smokes? your car. every time you drive a mile its smoking a thousand cigarettes worth of carcinogens into our collective air. anyone who drives has no right to complain about a little smoke.
Their study appeared in the online issue of the American Chemical Society's Environmental Science & Technology (ES&T), a semi-monthly journal.
...'high particle emitters' because they released such elevated quantities of particles, which the researchers believe to be toner, the ultrafine powder used in laser printers instead of ink to form text and images. One of the printers released particles into an experimental chamber at a rate comparable to the particle emissions from cigarette smoking, the report stated.
A study by the Natural Resources Defense Council (NRDC) found that levels of diesel exhaust on four Los Angeles school buses were eight and a half times higher than average levels found in California's smoggy air. This was four times higher than the fumes from inside a car driven directly in front of the buses. NRDC researchers measured diesel exhaust levels during five hours of tests conducted on actual bus routes in the city.
Earlier studies done at UCLA have shown that diesel soot is also linked to allergic and asthmatic reactions.
"Diesel particles don't just cause someone who is allergic to have worse symptoms, they cause people who are not normally allergic to some agents to become allergic," David Diaz-Sanchez, UCLA immunologist, told The Los Angeles Times.
Studies of those constantly exposed to diesel exhaust found their risk of lung cancer increased by up to 50 percent, said Michael Thun, chief epidemiologist for the American Cancer Society, on the organization’s Web site.
On average, schoolchildren who ride the bus spend an average of 90 minutes each weekday in transit, according to the EPA study. Those children are more susceptible to air pollution than healthy adults because their respiratory systems are still developing and they have a faster breathing rate.
Gasoline contains many toxic chemicals such as benzene, xylene, toluene and many other additives. These chemicals are then exposed to high heat and pressure in the engine combustion process forming a number of new very toxic chemicals including some known as "furans" and "polycyclic aromatic hydrocarbons," also known as PAH’s. PAH’s contain a toxic chemical called nitrofluoranthene and in a 1987 article in Discover magazine, one EPA chemist, who wished to remain anonymous stated, nitrofluoranthene is "horrendously carcinogenic." In fact, a 1983 symposium in Sweden attended by 40 scientists from around the world agreed that about 10% of all lung cancers were caused by fossil fuel combustion such as that found in vehicle exhaust. Vehicle exhaust also contains a chemical called benzo(a)pyrene which the body converts to benzo(a)pyrene epoxide which is known to be very powerful in mutating cells and causing cancer.