Asbestos air sampling results, Sep 26 2001

NYC 9/11 Public Portal Document

Entfcott Associates,Inc. Prellimtnary Report- JIM Evaheaticn NYPD - Fresh Kills Landl'nt Page 6

respond to a challenge.agent such as saccharin, Bitrex, isoamyl acetate (banana oil), or irritant smoke. Quantitative fit-testing uses an analytical instrument to evaluate the respirator seal. A fit-test is specific to each individual brand, make, model and size respirator. Wearing mote than one brand respirator would require more than one fit-test. Qualitative or quantitative fit-testing is necessary. iv) Facial Uair - toy facial hair which comes between the sealing surface of the respirator and a persons face prohibits the effect seal of a respirator. A personnel assigned to this area must be clean shaven before every shift. v) Medical Evaluation - OSHA states, "Using a respirator may place a physiological burden on individuals that varies with the type of respirator worn, the job and workplace conditions in which the respirator is used, and the medical status of the employee". Accordingly a medical evaluation by a physician or other licensed health care professional is required before wearing a respirator for the first time. Medical evaluations are also required for anyone with potential exposure to asbestos at levels greater than the OSHA PEL. vi) Maintenance and Care - To ensure continued effectiveness of a respirator's ability to function, maintenance and inspection procedures should be developed and communicatod to each individual.

e) Personal Protective Equipment - Tyveks, gloves, over-boots arc being provided. The consistent use of the over-boots should be enforced to ensure individuals do not track debris into their cars. The wearing of personal clothing under Tyvcks should be evaluated. Standard practice inproject$ with asbestos exposure potential is to not permit personal clothing to be worn under Tyveks

f) Engineering Controls and Work Practices - Light misting of the debris with water should be considered if the evidence value of the material will not be compromised. Misting and other wet methods are recognized as ways to reduce airborne asbestos levels.

g) Decontamination / Hygiene Facilities and Practices - Showers and change areas are expected to be installed by October 5C • Showers should be mandatory for all personnel before leaving the site.

h) hazard Communication - Effective communication of site conditions, air monitoring results, sod other information through safety briefings, signs and other postings may alleviate concerns expressed by some individuals working in the debris field.

i) Emergency/Contingency Planning - Addressing common emergencies such as weather (eg: lightning, excessive wind and rain), accidents and injuries, fire, and other emergencies anticipated on this project.

NYC-WTC 000150218