DOHMH guidelines on fungi assessment and remediation, Apr 2000

NYC 9/11 Public Portal Document

should be worn. (c) The work area should be unoccupied. Vacating people from spaces adjacent to the work area is not necessary but is recommended in the presence of infants (less than 12 months old), persons recovering from recent surgery, immune suppressed people, or people with chronic inflammatory lung diseases (e.g., asthma, hypersensitivity pneumonitis, and severe allergies). (d) ContarThThTent of die work area is not necessary. Dust suppression methods, such as misting (not soaking) surfaces prior to remediation, are recommended.

(e) Contaminated materials that cannot be cleaned should be removed from the building in a sealed plastic bag. There are no special requirements for the disposal of moldy materials. (f) The work area and areas used by rranedial workers for egress should be cleaned with a damp cloth and/or mop and a detergent solution. (g) All areas should be left dry and visibly free from contamination and debris.

3.2 Level H: Mid-Sized Isolated Areas (10 - 30 sq. ft) - e.g., individual wallboard panels. (a) Remediation can be conducted by regular building maintenance staff. Such persons should receive training on proper clean q? methods, personal protection, and potential health hazards. This training can be performed as part of a program to comply with the requirements ofthe OSHA Hazard Communication Standard (29 CFR 1910.1200). (b) Respiratory protection (e.g., N95 disposable respirator), in accordance with the OSHA respiratory protection standard (29 CFR 1910.134), is re ended. Gioves and eye protection should be worn. (c) The work area should be unoccupied. Vacating people from spaces adjacent to the work area is not necessary but is recommended in the presence of infants (less than 12 months old), persons having undergone recent surgery, immune suppressed people, or people with chronic inflammatory lung diseases (e.g., asthma, hypersensitivity pneumonitis, and severe allergies). (d) The work area should be covered with a plastic sheet(s) and sealed with tape before remediation, to contain dust/debris. (e) Dust suppression methods, such as misting (not soaking) surface prior to remediation, are recommended. (f) Contaminated materials that cannot be cleaned should be removed finm the building in sealed plastic bags. There are no special requirements for the disposal of moldy materials. (g) The work area and areas used by remedial workers for egress should be HEPA vacuumed (a vacuum equipped with a High-Efficiency Particulate Air filter) and cleaned with a damp cloth and/or mop and a detergent solution.

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NYC-WTC_000156109