How would the proposed Liberty Quarry
For most of us, our home is the largest investment we will ever
make. Can we let a mine put this investment at risk?
Silicosis is a
respiratory disease caused by inhalation of silica dust, which leads
to inflammation and scarring of the lung tissue.
Three types of silicosis are seen:
|Simple chronic silicosis -- results from long-term exposure (more
than 20 years) to low amounts of silica dust. Nodules of chronic
inflammation and scarring provoked by the silica dust form in the lungs
and chest lymph nodes. This disease may feature breathlessness and may
resemble chronic obstructive pulmonary disease (COPD). |
|Accelerated silicosis -- occurs after exposure to larger amounts of
silica over a shorter period of time (5 - 15 years). Inflammation,
scarring, and symptoms progress faster in accelerated silicosis than in
|Acute silicosis -- results from short-term exposure to very large
amounts of silica. The lungs become very inflamed and may fill with
fluid, causing severe shortness of breath and low blood oxygen levels.
Causes, incidence, and risk factors
Silica is a common, naturally-occurring
crystal. It is found in most rock beds and forms dust during mining,
quarrying, tunneling, and work with many metal ores. Silica is a main
component of sand, so glass workers and sand-blasters also receive heavy
exposure to silica.
Risk factors include any work that
includes exposure to silica dust. Mining, stone cutting, quarrying, road
and building construction, work with abrasives manufacturing, sand
blasting and many other occupations and hobbies involve exposure to
Intense exposure to silica may result in
disease in a year or less, but it usually takes at least 10 or 15 years of
exposure before symptoms develop.
Diesel exhaust fumes are severe air pollutants and can increase
The natural geographic feature of the Rainbow gap that brings
fresh ocean air to our Valley would bring the dust and pollutants directly into
our neighborhoods. With over 40 schools in our valley, our children would be at
risk of increased asthma and associated symptoms. Adults with emphysema would
|1,400 truck trips per day (more than 1 a minute) will have to enter
and leave the open-pit mine from the Rainbow Valley Boulevard interchange
onto Interstate 15.|
|Heavy-laden aggregate trucks will cause damage to our existing,
already overburdened roadways, as well as cause damage to our personal
vehicles from flying rocks.|
|There will be a direct increase of truck traffic through our Valley.|
|San Diego State University's unique 4, 344-acre outdoor classroom and
hands-on library, the
Ecological Reserve (SMER) will be severely impacted or
Dr. Stephen L. Weber, President of San Diego State University, states: "The
diverse impacts associated with gravel mining and processing plants pose a
serious threat to the continued success and persistence of SMER, placing
data, research, education and service at risk. "
|Groundwater seepage from the operations of the open-pit gravel mine
risks polluting the Santa Margarita River - the last free-flowing river in
|The open-pit mine would destroy the Santa Ana - Palomar Linkage and
put into danger the entire ecosystem of the Santa Ana Mountains. The
proposed mining site is located right in the Santa Ana - Palomar Linkage.
This linkage is the only viable wildlife habitat corridor between
the Santa Ana Mountains and the Palomar Mountains. |
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get involved now before it's too late!
PO Box 2196, Temecula, CA 92593 951.676.6912
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group dedicated to
natural features of the Santa Rosa Escarpment.
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