|
Asbestos
Background
Asbestos is a group of naturally
occurring minerals composed of small bundles of fibers.
The word asbestos is derived from a Greek word meaning
unquenchable or indestructible. Throughout history,
asbestos minerals have been found, and mined from the
earth around the world.
Asbestos has been used in literally thousands of building
materials as well as other products. It gained wide spread
use because it is plentiful, readily available, and low in
cost. Its unique properties—fire resistance, high tensile
strength, poor heat and electrical conductivity, and
impervious to chemical attacks—proved well suited for many
uses in the construction trade.
Friable
vs. Non Friable ACM
Asbestos containing materials (ACM) can
be classified into two forms: friable and non-friable.
Friable ACM contains more than 1% asbestos and can be
crumbled, pulverized or reduced to powder by hand pressure
when dry. Friable ACM is thought to release fibers in the
air more readily than non-friable ACM; however, several
types of non-friable ACM can also release fibers if
improperly disturbed.
Categories Of
Asbestos Containing Building Materials
EPA categorizes ACM’s into three main categories:
-
Surfacing materials-(sprayed or toweled
on) were used for decorative, acoustical, and
fireproofing purposes. SIUC has a few buildings that
contain this asbestos surfacing material (e.g. Morris
Library).
-
Thermal system insulation-was used to
inhibit heat transfer or prevent condensation on pipes,
boilers, tanks, ducts, and other components of plumbing
or HVAC systems. Examples include pipe wraps,
insulation, and “muds”. There is a substantial amount of
thermal insulation in mechanical rooms, and in the
tunnels connecting mechanical systems at SIUC.
-
Miscellaneous
materials-make up the remainder of asbestos containing
materials on campus. They consist of products and
materials such as floor tile, sheet flooring, adhesive
mastic, ceiling tiles, concrete pipe, and roofing felt.
A majority of buildings at SIUC contain these
miscellaneous materials such as 9x9 floor tile.
It is important to note
that a building containing asbestos is not an immediate
health hazard for occupants as long as it is maintained in
good condition and not disturbed.
Health Risks
Associated with Asbestos Exposure
Asbestos is a concern due to the adverse health
effects caused from breathing air containing its fibers.
There are three diseases associated with exposure to
asbestos, which are listed below.
Asbestosis-is a scarring
(fibrosis) of the lungs. The scaring impairs the
elasticity of the lung tissue and hampers its ability to
exchange gases. This leads to inadequate oxygen intake to
the blood. The disease restricts breathing leading to
decreased lung volume and resistance in the airways making
it difficult to breathe. Asbestosis is a slowly
progressive disease with a latency period of 10- 40 years
as a result from relatively high levels of airborne
asbestos over a period of time (e.g. asbestos break shoe
factory).
Lung Cancer-is a
malignant tumor of the bronchi covering. The tumor grows
through surrounding tissue invading and often obstructing
air passages. The time between exposure to asbestos and
the occurrence of lung cancer is typically 20 years.
Mesothelioma-is a cancer of the mesothelium, the lining of
the chest or the abdominal wall. It is considered to be a
“marker” disease for asbestos exposure. Early stages are
associated with only a few symptoms. By the time it is
diagnosed, it is usually fatal.
There is a synergistic relationship between asbestos
related diseases and smoking. In other words, if a person
smokes and is exposed to airborne asbestos fibers chances
of contracting an asbestos related disease is 50- 90 times
greater.
Asbestos Abatement
Specialist Responsibilities
Due to the large amount of asbestos on campus
and numerous state and federal regulatory requirements,
the Center for Environmental Health and Safety (CEHS) has
employed an Asbestos Abatement Specialist. This specialist
is a licensed project manager, inspector, air sampling
professional, and in charge of managing the asbestos
activities on campus. Listed below is a summary of CEHS’
asbestos compliance program as coordinated by the Asbestos
Abatement Specialist.
Notifications
Prior to the start of an abatement project, proper
regulatory agencies must be notified. The Asbestos
Abatement Specialist is responsible for notifying the
following agencies:
-
Illinois Department of
Public Health must be notified two days prior to
abatement projects between 3 square/ 3 linear to 160
square/ 260 linear feet.
-
Environmental
Protection Agency requires a 10-day notification for
projects ranging in size over 160 square/ 260 linear
feet.
Inspections
It is required under EPA’S National Emissions Standard for
Hazardous Air Pollutants (NESHAP) that a licensed asbestos
inspector prior to demolition and renovation activities
inspects buildings.
Physical Plant Engineering Services (PPES) sends a copy of
the General Improvement Request (GIR) and scope of
work to Facility Operations Center (FOC) where a work
order is issued to CEHS requesting an asbestos inspection
and directives. The Asbestos Abatement Specialist performs
an inspection of the area, reviews documents, and if
necessary collects bulk samples to determine if asbestos
is present in that particular area. If bulk samples are
collected, they are sent off to a laboratory and analyzed
for asbestos content. Once all information is reviewed, a
report is sent to PPES giving the results and proper
directives for the inspection.
In-House Abatement
Projects
There are situations on campus, which involve the removal
of asbestos in order to perform routine maintenance
activities. SIUC currently employs 15 asbestos workers and
two asbestos supervisors who are EPA accredited and
licensed by the Illinois Department of Public Health.
Prior to the start of an in-house abatement project the
Asbestos Abatement Specialist reviews the work order,
inspects the job site, and notifies proper regulatory
agencies. Proper abatement techniques and procedures are
then reviewed with the Asbestos Abatement Supervisor. The
Asbestos Abatement Specialist then monitors the job
throughout the entire removal process, conducts air
sampling, performs inspections, and ensures that proper
abatement techniques are performed and engineering
controls are utilized. Guidelines are also outlined in a
Standard Operating Procedures manual, which is
available for review at the Grounds Department and CEHS.
Respiratory
Protection
OSHA requires SIUC to have a written respiratory
protection program and to follow the 29 CFR 1910.134
standard. The Asbestos Abatement Specialist acts as the
program administrator as required in this standard. The
administrator is responsible for identifying work areas,
which require workers to wear a respirator, selects the
respiratory options, monitors respirator use, conducts
training, arranges fit tests, administers the medical
surveillance program, maintains records, and updates the
program as needed. A copy of the entire program is
available at the Grounds Department and CEHS.
Training
CEHS offers an asbestos awareness-training program to
Physical Plant employees. OSHA requires the training to be
offered annually for employees who conduct general
maintenance and custodial activities in asbestos
containing buildings. The Asbestos Abatement Specialist
works with Safety Officers at CEHS to provide this
training.
Literature is also
available upon request. CEHS has developed an Asbestos
General Awareness Guide and a handout, which provides
answers to the 10 Most Commonly Asked Questions About
Asbestos.
Capital Development
Board (CDB) Projects
CDB projects are generally large and involve using outside
contractors and consultants. The Asbestos Abatement
Specialist assists the Physical Plant with selecting
consultants and coordinating projects.
Management Plans
Currently the Capital Development Board is performing
inspections of every building on the SIUC campus. Each
building will have a written Management Plan that
will provide information on the condition, quantity, and
location of asbestos containing material. The Asbestos
Abatement Specialist is responsible for managing the
surveys, interpreting the results, and performing
six-month periodic inspections. The Management Plans
will be available on the CEHS web site.
Record Keeping
The Asbestos Abatement Specialist is responsible for
keeping records for abatement projects, employee
certifications/licenses, training, air sampling, bulk
sampling, and waste manifests.
Summary
IIn order to remain in compliance with state and federal
regulations it takes cooperation from everyone involved in
the asbestos abatement process. The Center for
Environmental Health and Safety will continue to provide
asbestos services and manage asbestos situations. For more
information concerning asbestos issues contact
Jeff Shurtz
at CEHS. |